2011 Periodic Emissions Inventory
for Ozone Precursors
for the
Maricopa County, Arizona, Eight-Hour Ozone Nonattainment Area

February 2014

Foreword
Maricopa County Air Quality Department released a draft version of this document, its 2011
emission inventory of ozone precursors, for a 30-day public review period on January 22, 2014.
(The department’s news release to announce the availability of the draft report, which outlines
the schedule for public review and comment, is contained in Appendix D, along with a copy of
the department’s calendar item providing details on the workshop). The department held a public
workshop on February 14, 2014 to discuss the draft inventory. No formal comments were
received during the 30-day public review period.

Maricopa County Air Quality Department
Emissions Inventory Unit
1001 N. Central Avenue, Suite 595
Phoenix, AZ 85004
e-mail: EmisInv@mail.maricopa.gov

2011 Periodic Emissions Inventory for Ozone Precursors for the
Maricopa County, Arizona Eight-Hour Ozone Nonattainment Area

February 2014

Table of Contents
1. Introduction .....................................................................................................................................1
1.1
1.2
1.3
1.4
1.5

1.6

Overview .......................................................................................................................................1
Agencies responsible for the emissions inventory........................................................................1
Temporal scope .............................................................................................................................2
Geographic scope ..........................................................................................................................2
Overview of local demographic and land use data .......................................................................3
1.5.1 Demographic profile ..........................................................................................................3
1.5.2 Land use data .....................................................................................................................3
Emissions overview by source category .......................................................................................4
1.6.1 Point sources ......................................................................................................................4
1.6.2 Area sources .......................................................................................................................4
1.6.3 Nonroad mobile sources ....................................................................................................5
1.6.4 Onroad mobile sources ......................................................................................................6
1.6.5 Biogenic sources ................................................................................................................6
1.6.6 Summary of all source categories ......................................................................................7

2. Point Sources .................................................................................................................................11
2.1
2.2
2.3
2.4
2.5
2.6
2.7

2.8

Introduction and scope ................................................................................................................11
Identification of point sources ....................................................................................................11
Procedures for estimating emissions from point sources............................................................12
2.3.1 Application of rule effectiveness .....................................................................................13
Detailed overview of point source emissions .............................................................................13
Emission reduction credits ..........................................................................................................13
Summary of point source emissions ...........................................................................................14
Quality assurance/quality control procedures .............................................................................14
2.7.1 Emission survey preparation and data collection .............................................................14
2.7.2 Submission processing .....................................................................................................15
2.7.3 Analysis of annual point source emissions data for this inventory ..................................16
References ...................................................................................................................................16

3. Area Sources ..................................................................................................................................17
3.1
3.2

Scope and methodology ..............................................................................................................17
Fuel combustion..........................................................................................................................19
3.2.1 Industrial distillate oil ......................................................................................................19
3.2.2 Industrial natural gas ........................................................................................................20
3.2.3 Commercial/institutional distillate oil..............................................................................21
3.2.4 Commercial/institutional natural gas ...............................................................................21

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3.3

3.4

3.5

3.6

3.7

3.2.5 Residential distillate oil....................................................................................................22
3.2.6 Residential natural gas .....................................................................................................23
3.2.7 Residential liquefied petroleum gas (LPG)......................................................................23
3.2.8 Residential kerosene ........................................................................................................24
3.2.9 Residential wood combustion ..........................................................................................24
Industrial processes .....................................................................................................................25
3.3.1 Chemical manufacturing ..................................................................................................25
3.3.2 Food and kindred products...............................................................................................26
3.3.2.1 Commercial cooking..........................................................................................26
3.3.2.2 Bakeries .............................................................................................................27
3.3.3 Secondary metal production ............................................................................................28
3.3.4 Rubber/plastics product manufacturing ...........................................................................28
3.3.5 Electrical equipment manufacturing ................................................................................29
3.3.6 Industrial processes not elsewhere classified (NEC) .......................................................30
Solvent use ..................................................................................................................................30
3.4.1 Surface coating.................................................................................................................30
3.4.1.1 Architectural coatings ........................................................................................30
3.4.1.2 Auto refinishing .................................................................................................31
3.4.1.3 Traffic markings ................................................................................................31
3.4.1.4 Factory-finished wood .......................................................................................32
3.4.1.5 Wood furniture ..................................................................................................33
3.4.1.6 Aircraft surface coating .....................................................................................34
3.4.1.7 Miscellaneous surface coating ...........................................................................34
3.4.2 Degreasing .......................................................................................................................35
3.4.3 Dry cleaning .....................................................................................................................36
3.4.4 Graphic arts ......................................................................................................................36
3.4.5 Miscellaneous industrial solvent use................................................................................37
3.4.6 Consumer and commercial products ................................................................................38
3.4.7 Asphalt application ..........................................................................................................38
3.4.8 Agricultural pesticides .....................................................................................................40
Storage and transport ..................................................................................................................40
3.5.1 Portable fuel containers ....................................................................................................40
3.5.2 Bulk plants .......................................................................................................................41
3.5.3 Gasoline stations (Stage I) ...............................................................................................42
3.5.4 Gasoline stations (Stage II) ..............................................................................................42
3.5.5 Gasoline stations underground tanks, breathing/emptying ..............................................43
3.5.6 Airports: Aviation gasoline ..............................................................................................43
3.5.7 Gasoline tank trucks in transit..........................................................................................44
3.5.8 Pipeline gasoline ..............................................................................................................44
3.5.9 Volatile organic liquid (VOL) storage and transport .......................................................45
Waste treatment and disposal .....................................................................................................45
3.6.1 On-site incineration ..........................................................................................................45
3.6.2 Open burning: Land clearing debris ................................................................................46
3.6.3 Landfills ...........................................................................................................................47
3.6.4 Publicly owned treatment works ......................................................................................47
3.6.5 Leaking underground storage tanks .................................................................................48
3.6.6 Other waste ......................................................................................................................48
Miscellaneous area sources .........................................................................................................49
3.7.1 Agricultural field burning ................................................................................................49

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3.7.2 Structure fires ...................................................................................................................50
3.7.3 Aircraft engine testing......................................................................................................51
3.7.4 Vehicle fires .....................................................................................................................51
3.7.5 Crematories ......................................................................................................................52
3.7.6 Accidental releases ...........................................................................................................52
3.7.7 Hospitals ..........................................................................................................................53
3.7.8 Wildfires ..........................................................................................................................53
3.7.9 Prescribed fires .................................................................................................................55
3.8 Summary of all area sources .......................................................................................................57
3.9 Quality assurance / quality control procedures ...........................................................................60
3.10 References ...................................................................................................................................62
4. Nonroad Mobile Sources ..............................................................................................................65
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15

Introduction.................................................................................................................................65
Agricultural equipment ...............................................................................................................66
Airport ground support equipment .............................................................................................67
Commercial equipment ...............................................................................................................68
Construction and mining equipment ...........................................................................................68
Industrial equipment ...................................................................................................................69
Lawn and garden equipment .......................................................................................................69
Pleasure craft...............................................................................................................................70
Railway maintenance equipment ................................................................................................70
Recreational equipment ..............................................................................................................71
Aircraft ........................................................................................................................................71
Locomotives................................................................................................................................77
Summary of all nonroad mobile source emissions .....................................................................78
Quality assurance procedures .....................................................................................................79
References ...................................................................................................................................79

5. Onroad Mobile Sources ................................................................................................................81
5.1
5.2

Introduction.................................................................................................................................81
Onroad emissions ........................................................................................................................81
5.2.1 MOVES2010b model.......................................................................................................82
5.2.2 MOVES2010b local input data ........................................................................................82
5.2.2.1 Fuel data ............................................................................................................82
5.2.2.2 I/M programs .....................................................................................................82
5.2.2.3 Meteorological data ...........................................................................................83
5.2.2.4 Vehicle population .............................................................................................83
5.2.2.5 Source type age distribution ..............................................................................83
5.2.2.6 Annual VMT......................................................................................................83
5.2.2.7 Road type distribution .......................................................................................84
5.2.2.8 VMT fraction .....................................................................................................84
5.2.2.9 Average speed distribution ................................................................................85
5.2.2.10 Ramp fraction ....................................................................................................85
5.2.2.11 AVFT strategy ...................................................................................................85
5.2.2.12 Stage II refueling control programs ...................................................................85
5.2.3 MOVES2010b outputs .....................................................................................................86
5.2.4 MOVES2010b emission estimates ..................................................................................86

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5.3
5.4

5.5

Summary of ozone precursor emissions from onroad mobile sources .......................................95
Quality assurance process ...........................................................................................................97
5.4.1 VMT estimates .................................................................................................................97
5.4.2 Emission estimates ...........................................................................................................97
5.4.3 Draft emissions inventory for ozone precursors ..............................................................97
References ...................................................................................................................................97

6. Biogenic Sources ............................................................................................................................99
6.1
6.2
6.3

6.4
6.5
6.6

Introduction.................................................................................................................................99
Modeling domain ........................................................................................................................99
Input data ....................................................................................................................................99
6.3.1 Land cover data ..............................................................................................................100
6.3.2 Weather data ..................................................................................................................100
Emission estimation ..................................................................................................................101
Summary of biogenic source emissions....................................................................................105
References .................................................................................................................................106

List of Tables
Table 1.2–1.
Table 1.5–1.
Table 1.5–2.
Table 1.6–1.
Table 1.6–2.
Table 1.6–3.
Table 1.6–4.
Table 1.6–5.
Table 1.6–6.
Table 1.6–7.
Table 1.6–8.
Table 1.6–9.
Table 2.2–1.
Table 2.4–1.
Table 2.5–1.
Table 2.6–1.
Table 3.1–1.
Table 3.2–1.
Table 3.2–2.
Table 3.2–3.

Chapter authors and QA/QC contacts for this report. ....................................................1
Demographic profile of Maricopa County and the eight-hour ozone NAA. ..................3
Land use categories used to apportion emissions. ..........................................................4
Annual and season-day emissions from point sources. ..................................................4
Annual and season-day emissions from area sources in Maricopa County. ..................5
Annual and season-day emissions from area sources in the eight-hour ozone NAA.....5
Annual and season-day emissions from nonroad mobile sources in Maricopa
County. ...........................................................................................................................5
Annual and season-day emissions from nonroad mobile sources in the eight-hour
ozone NAA. ....................................................................................................................6
Annual and season-day emissions from onroad mobile sources in Maricopa
County and the eight-hour ozone NAA. .........................................................................6
Annual and season-day emissions from biogenic sources in Maricopa County and
the eight-hour ozone NAA. ............................................................................................6
Annual and season-day emissions from all sources in Maricopa County. .....................7
Annual and season-day emissions from all sources in the eight-hour ozone
nonattainment area. ........................................................................................................9
Name and location of all point sources in Maricopa County. ......................................12
Annual and season-day point source emissions, by facility. ........................................13
Emission reduction credits as of December 31, 2011. .................................................14
Annual and season-day point source emissions (including emission reduction
credits). .........................................................................................................................14
List of area source categories included in this ozone precursor inventory...................17
Maricopa County natural gas sales by end-user category and supplier. ......................19
Annual and season-day emissions from area-source industrial distillate oil
combustion for boilers. .................................................................................................20
Annual and season-day emissions from area-source industrial distillate oil
combustion for engines. ...............................................................................................20

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Table 3.2–4. Natural gas usage, emission factors, and annual emissions from area-source
industrial natural gas consumption, by combustion type. ............................................20
Table 3.2–5. Annual and season-day emissions from area-source industrial natural gas
combustion. ..................................................................................................................21
Table 3.2–6. Annual and season-day emissions from area-source commercial/institutional
distillate oil combustion for boilers. .............................................................................21
Table 3.2–7. Annual and season-day emissions from area-source commercial/institutional
distillate oil combustion for engines. ...........................................................................21
Table 3.2–8. Emission factors and annual emissions from area-source commercial/institutional
natural gas combustion, by combustion type. ..............................................................22
Table 3.2–9. Annual and season-day emissions from area-source commercial/institutional
natural gas combustion. ................................................................................................22
Table 3.2–10. Annual and season-day emissions from residential distillate oil combustion. .............23
Table 3.2–11. Residential natural gas combustion emission factors. ..................................................23
Table 3.2–12. Annual and season-day emissions from residential natural gas combustion. ..............23
Table 3.2–13. Annual and season-day emissions from residential liquefied petroleum gas (LPG)
combustion. ..................................................................................................................24
Table 3.2–14. Annual and season-day emissions from residential kerosene combustion...................24
Table 3.2–15. Annual emissions by appliance type for Maricopa County from EPA’s residential
wood combustion estimation tool.................................................................................25
Table 3.2–16. Annual and season-day emissions from residential wood combustion. .......................25
Table 3.3–1. County-level employment estimates for chemical manufacturing, by NAICS code. ..26
Table 3.3–2. Annual and season-day emissions from area-source chemical manufacturing. ...........26
Table 3.3–3. Emission factors for commercial cooking equipment, by device type. ........................26
Table 3.3–4. Annual and daily emissions from commercial cooking equipment in Maricopa
County. .........................................................................................................................27
Table 3.3–5. Annual and daily emissions from commercial cooking equipment in the eight-hour
ozone NAA. ..................................................................................................................27
Table 3.3–6. Annual and season-day emissions from area-source bakeries. ....................................28
Table 3.3–7. Annual and season-day emissions from area-source secondary metal production. .....28
Table 3.3–8. County-level employment estimates for rubber and plastic product manufacturing,
by NAICS code. ...........................................................................................................29
Table 3.3–9. Annual and season-day emissions from area-source rubber/plastic product
manufacturing. ..............................................................................................................29
Table 3.3–10. Annual and season-day emissions from area-source electric equipment
manufacturing. ..............................................................................................................30
Table 3.3–11. Annual and season-day emissions from industrial processes not elsewhere
classified. ......................................................................................................................30
Table 3.4–1. Annual and season-day emissions from architectural coating. ....................................31
Table 3.4–2. County-level employment estimates for auto refinishing, by NAICS code. ................31
Table 3.4–3. Annual and season-day emissions from auto refinishing. ............................................31
Table 3.4–4. Annual and season-day emissions from traffic markings. ...........................................32
Table 3.4–5. County-level employment estimates for factory-finished wood coating, by NAICS
code. .............................................................................................................................32
Table 3.4–6. Annual and season-day emissions from area-source factory-finished wood surface
coating. .........................................................................................................................33
Table 3.4–7. County-level employment estimates for wood furniture surface coating, by
NAICS code. ................................................................................................................33

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Table 3.4–8. Annual and season-day emissions from area-source wood furniture surface
coating. .........................................................................................................................34
Table 3.4–9. Annual and season-day VOC emissions from area-source aircraft surface coating. ...34
Table 3.4–10. Annual and season-day emissions from miscellaneous surface coating. .....................35
Table 3.4–11. Annual and season-day VOC emissions from area-source degreasing. .......................35
Table 3.4–12. Annual and season-day emissions from dry cleaning. .................................................36
Table 3.4–13. County-level employment estimates for graphic arts, by NAICS code. ......................36
Table 3.4–14. Annual and season-day VOC emissions from area-source graphic arts sources. ........37
Table 3.4–15. Annual and season-day emissions from area-source miscellaneous industrial
solvent use. ...................................................................................................................38
Table 3.4–16. Annual and season-day emissions from consumer and commercial products. ............38
Table 3.4–17. 2008 and 2011 population and VMT, by geographic area. ..........................................39
Table 3.4–18. Emissions from asphalt use, by type, in Maricopa County. .........................................39
Table 3.4–19. Emissions from asphalt use, by type, in the eight-hour ozone NAA. .........................39
Table 3.4–20. Annual and season-day emissions from agricultural pesticide application. .................40
Table 3.5–1. Annual and season-day emissions from portable fuel containers (PFCs). ...................41
Table 3.5–2. Annual and season-day emissions from bulk plants. ...................................................42
Table 3.5–3. Emission factors for gasoline service stations (Stage I). ..............................................42
Table 3.5–4. Annual and season-day emissions from gasoline service stations (Stage I). ...............42
Table 3.5–5. Annual and season-day emissions from gasoline service stations underground
tank, breathing and emptying. ......................................................................................43
Table 3.5–6. Annual emissions from aviation gasoline for Maricopa County. .................................43
Table 3.5–7. Annual and season-day emissions from aviation gasoline. ..........................................44
Table 3.5–8. Annual and season-day emissions from gasoline trucks in transit. ..............................44
Table 3.5–9. Annual and season-day emissions from pipeline gasoline. ..........................................45
Table 3.5–10. Annual and season-day emissions from area-source volatile organic liquid
storage/transport. ..........................................................................................................45
Table 3.6–1. Annual and season-day emissions from on-site incineration. ......................................46
Table 3.6–2. Maricopa County burn permit activity. ........................................................................46
Table 3.6–3. Emission and fuel loading factors for open burning. ...................................................46
Table 3.6–4. Annual and season-day emissions from land clearance and fire hazard open
burning..........................................................................................................................47
Table 3.6–5. Annual and season-day emissions from landfills. ........................................................47
Table 3.6–6. VOC emissions from publicly owned treatment works. ..............................................48
Table 3.6–7. Annual and season-day emissions from remediation of leaking underground
storage tanks. ................................................................................................................48
Table 3.6–8. Annual and season-day emissions from other waste. ...................................................49
Table 3.7–1. Emission factors for open burning. ..............................................................................49
Table 3.7–2. Annual and season-day emissions from ditchbank and fence row burning. ................50
Table 3.7–3. Maricopa County population growth, 2008 to 2011. ...................................................50
Table 3.7–4. 2008 and 2011 annual emissions from structure fires in Maricopa County. ................50
Table 3.7–5. Annual and season-day emissions from structure fires. ...............................................51
Table 3.7–6. Annual and season-day emissions from aircraft engine testing. ..................................51
Table 3.7–7. 2008 and 2011 annual emissions from vehicle fires in Maricopa County. ..................51
Table 3.7–8. Annual and season-day emissions from vehicle fires. .................................................51
Table 3.7–9. County-level employment estimates for crematories, by NAICS code. ......................52
Table 3.7–10. Annual and season-day emissions from crematories. ..................................................52
Table 3.7–11. Annual and season-day emissions from accidental releases. .......................................53
Table 3.7–12. Annual and season-day emissions from hospitals. .......................................................53

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Table 3.7–13.
Table 3.7–14.
Table 3.7–15.
Table 3.7–16.
Table 3.7–17.
Table 3.7–18.
Table 3.7–19.
Table 3.7–20.
Table 3.7–21.
Table 3.8–1.
Table 3.8–2.
Table 4.1–1.
Table 4.1–2.
Table 4.2–1.
Table 4.3–1.
Table 4.3–2.
Table 4.4–1.
Table 4.5–1.
Table 4.6–1.
Table 4.7–1.
Table 4.8–1.
Table 4.9–1.
Table 4.10–1.
Table 4.11–1.
Table 4.11–2.
Table 4.11–3.
Table 4.11–4.
Table 4.12–1.
Table 4.12–2.
Table 4.12–3.
Table 4.12–4.
Table 4.13–1.
Table 4.13–2.
Table 5.2–1.
Table 5.2–2.
Table 5.2–3.
Table 5.3–1.
Table 5.3–2.

2011 wildfire activity in Maricopa County. .................................................................54
Data used to estimate 2011 wildfire emissions. ...........................................................54
Summary of 2011 wildfires, acres burned, and estimate of material burned. ..............54
Emission factors for wildfires and prescribed broadcast burning. ...............................55
Annual emissions from wildfires. ................................................................................55
Season-day emissions from wildfires. ..........................................................................55
2011 prescribed fire activity in Maricopa County........................................................56
Emission factors for prescribed fire (piled fuels). ........................................................56
Annual and season-day emissions from prescribed fires. ............................................56
Annual and season-day emissions from all area sources in Maricopa County. ...........57
Annual and season-day emissions from all area sources in the eight-hour ozone
NAA. ............................................................................................................................59
NONROAD2008 model county temperature and fuel-related inputs. .........................65
Default weekday and weekend day activity allocation fractions. ................................66
Annual and season-day emissions from agricultural equipment. .................................67
Annual emissions (tons/yr) from airport ground support equipment (GSE) and
auxiliary power units (APUs). ......................................................................................68
Season-day emissions (lbs/day) from airport GSE and APU. ......................................68
Annual and season-day emissions from commercial equipment. ................................68
Annual and season-day emissions from construction and mining equipment. ............69
Annual and season-day emissions from industrial equipment. ....................................69
Annual and season-day emissions from lawn and garden equipment. .........................70
Annual and season-day emissions from pleasure craft equipment...............................70
Annual and season-day emissions from railway maintenance equipment. ..................70
Annual and season-day emissions from recreational equipment. ................................71
Annual airport operations (by aircraft category) and related data sources...................73
Growing aircraft-specific activity for EDMS modeling input. ....................................75
Annual and season-day emissions, by aircraft type, for airports in the eight-hour
ozone NAA. ..................................................................................................................76
Annual and season-day emissions, by aircraft type, for airports outside the eighthour ozone NAA. .........................................................................................................77
Emission factors for locomotives. ................................................................................77
Fuel use and annual emissions from locomotives in Maricopa County. ......................77
Annual emissions from locomotives in the eight-hour ozone NAA. ...........................77
Season-day emissions from locomotives in Maricopa County and the eight-hour
ozone NAA. ..................................................................................................................78
Annual and season-day emissions from nonroad mobile sources in Maricopa
County. .........................................................................................................................78
Annual and season-day emissions from nonroad mobile sources in the eight-hour
ozone NAA. ..................................................................................................................78
2011 daily VMT by facility type (annual average daily traffic). .................................84
Annual and ozone season-day onroad mobile source emissions by facility type and
vehicle class in the eight-hour ozone NAA. .................................................................87
Annual and ozone season-day onroad mobile source emissions by facility type and
vehicle class in Maricopa County. ...............................................................................91
Annual and ozone season-day onroad mobile source emissions by facility type in
the eight-hour ozone NAA. ..........................................................................................95
Annual and ozone season-day onroad mobile source emissions by facility type in
Maricopa County. .........................................................................................................95

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Table 5.3–3. Annual and ozone season-day onroad mobile source emissions by vehicle class in
the eight-hour ozone NAA. ..........................................................................................96
Table 5.3–4. Annual and ozone season-day onroad mobile source emissions by vehicle class in
Maricopa County. .........................................................................................................96
Table 5.3–5. Annual and ozone season-day emissions from all onroad mobile sources in the
eight-hour ozone NAA and Maricopa County. ............................................................96
Table 6.2–1. Two modeling domains defined in the LCP coordinate system. ..................................99
Table 6.4–1. Daily mean biogenic emissions for each month in the eight-hour ozone NAA. ........102
Table 6.4–2. Daily mean biogenic emissions for each month in Maricopa County. ......................103
Table 6.4–3. Monthly biogenic emissions in the eight-hour ozone NAA. ......................................105
Table 6.4–4. Monthly biogenic emissions in Maricopa County. ....................................................105
Table 6.5–1. Season-day biogenic emissions. .................................................................................106
Table 6.5–2. Annual biogenic emissions. ........................................................................................106

List of Figures
Map of Maricopa County and the eight-hour ozone nonattainment area. ......................2
Data flow for annual point source emissions inventory reporting. ..............................15
The masked grid cells in the 4-km modeling domain. ...............................................100
Monthly averaged temperature (left panel) and annual mean diurnal cycle of
temperature (right panel) in 2011. ..............................................................................101
Figure 6.3–3. Monthly averaged radiation (left panel) and annual mean diurnal cycle of
radiation (right panel) in 2011. ...................................................................................101
Figure 6.4–1. Estimated emission rates of ISOP (left panel) and NOx (right panel) at 17:00 MST,
August 2011 by MEGAN model. ...............................................................................102
Figure 6.4–2. Monthly emissions of VOC (top), NOx (middle) and CO (bottom) in Maricopa
County (pink solid line, abbreviated as “County”) and the eight-hour ozone NAA
(blue solid line, abbreviated as “O3 NAA”)...............................................................104

Figure 1.4–1.
Figure 2.7–1.
Figure 6.3–1.
Figure 6.3–2.

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Appendices
Appendix A Instructions for Reporting 2011 Annual Air Pollution Emissions
Appendix B Rule Effectiveness Studies
B.1 Introduction
B.2 Calculating Rule Effectiveness Rates for Title V Facilities and Non-Title V
Facilities
B.3 References
Appendix C MOVES2010b Local Input Data and RunSpecs
MOVES2010b RunSpec Summary (Maricopa County, December 2011)
MOVES2010b RunSpec (Maricopa County, December 2011)
MOVES2010b Local Input Data (Maricopa County, December 2011)
Appendix D Public Comment Period Documentation

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1.

Introduction

1.1

Overview

This 2011 periodic ozone emissions inventory was developed to meet requirements set forth in
Title I of the Clean Air Act Amendments of 1990 (CAAA). The CAAA require development of
a baseline emissions inventory and periodic revisions for areas that fail to meet the National
Ambient Air Quality Standards (NAAQS). A portion of Maricopa County is classified as
nonattainment for the eight-hour ozone standard.
This inventory includes emission estimates for three ozone precursors: volatile organic compounds (VOCs), carbon monoxide (CO) and nitrogen oxides (NOx). VOC is defined by Maricopa County’s Rule 100 as “any organic compound, which participates in atmospheric photochemical reactions, except the non-precursor organic compounds”. The inventory provides
emission estimates from point, area, nonroad mobile, onroad mobile, and biogenic sources. Note
that totals shown in tables may not equal the sum of individual values due to independent
rounding.

1.2

Agencies responsible for the emissions inventory

Maricopa County Air Quality Department (MCAQD) has primary responsibility for preparing
and submitting the 2011 Periodic Emissions Inventory for Ozone Precursors for Maricopa
County. Point, area, and some nonroad mobile source emission estimates were prepared by
MCAQD. The Maricopa Association of Governments (MAG) prepared the emission estimates
for onroad mobile, biogenic, and the majority of nonroad mobile sources. Table 1.2–1 lists those
responsible for inventory preparation and quality assurance/quality control activities, which are
described in the respective chapters.
Table 1.2–1. Chapter authors and QA/QC contacts for this report.
Chapter
Author(s)
QA/QC contact persons
2. Point sources
Bob Downing, MCAQD (602) 506-6790
Eric Raisanen, MCAQD (602) 506-6790

3. Area sources

4. Nonroad mobile
sources
5. Onroad mobile
sources
6. Biogenic sources

Eric Raisanen, Tom Ekren and Dena
Konopka, MCAQD (602) 506-6790

Matt Poppen, MAG (602) 254-6300
Dena Konopka, MCAQD (602) 506-6790
Ieesuck Jung, MAG (602) 254-6300
Feng Liu, MAG (602) 254-6300

2011 Ozone Precursor Emissions Inventory

1

Matt Poppen, MAG (602) 254-6300
Bob Downing, MCAQD (602) 506-6790
Matt Poppen, MAG (602) 254-6300
Cathy Arthur, MAG (602) 254-6300
Bob Downing, MCAQD (602) 506-6790
Cathy Arthur, MAG (602) 254-6300
Matt Poppen, MAG (602) 254-6300
Cathy Arthur, MAG (602) 254-6300
Matt Poppen, MAG (602) 254-6300
Cathy Arthur, MAG (602) 254-6300

February 2014

1.3

Temporal scope

Annual and ozone season-day emissions were estimated for the year 2011, for Maricopa County
and the Maricopa County eight-hour ozone nonattainment area (NAA). The three-month peak
ozone season for the Maricopa County nonattainment area has been defined as July 1 through
September 30, based on the 1981–1991 pattern of ozone exceedances.
1.4

Geographic scope

This inventory includes emission estimates for Maricopa County and for the Maricopa County
eight-hour ozone nonattainment area. Maricopa County encompasses approximately 9,223
square miles of land area, while the Maricopa County eight-hour ozone nonattainment area is
approximately 5,018 square miles or about 54 percent of the Maricopa County land area.1 A
portion of the southeastern boundary of the eight-hour ozone nonattainment area includes areas
of Pinal County totaling 48 square miles or 0.96% of the nonattainment area. A map of
Maricopa County and the eight-hour ozone nonattainment area is provided in Figure 1.4–1.
Figure 1.4–1. Map of Maricopa County and the eight-hour ozone nonattainment area.

1. In May 2012, EPA designated a new eight-hour ozone nonattainment area based on the 2008 eight-hour
ozone NAAQS (77 FR 30088, May 12, 2012). The previous eight-hour ozone nonattainment area was
based on the 1997 eight-hour ozone NAAQS. The 2012 nonattainment area boundary was used for this
2011 inventory, as it is expected to be used as a base-year inventory for a future state implementation plan.

2011 Ozone Precursor Emissions Inventory

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February 2014

1.5

Overview of local demographic and land use data

Many of the emissions estimates generated in this report were calculated using demographic and
land use data provided by the Maricopa Association of Governments (MAG). These data were
used to apportion and/or scale Maricopa County emissions estimates to the nonattainment area
and vice versa. (For example, county-level emissions from residential natural gas usage in
Maricopa County were apportioned to the nonattainment area using the ratio of total population
in each area). Detailed explanations of how emission estimates were apportioned or scaled are
presented in each of the following chapters, along with the data sources used.

1.5.1

Demographic profile

The demographic data provided by MAG included population, employment data, and single
family/multi-family splits for calendar year 2011, for both Maricopa County and the eight-hour
ozone nonattainment area. Table 1.5–1 provides an overview of the key demographic data used
in this report. As noted throughout the text, these data are frequently used to derive estimates of
activity or emissions within the eight-hour ozone nonattainment area from county-level calculations. It is important to note, however, that the nonattainment area includes a portion of Pinal
County, AZ as shown in Figure 1.4–1. Thus in some cases (e.g., those source categories calculated based on total population), the multiplier used to derive nonattainment area estimates from
County-level values may be greater than 1, and thus the resulting NAA emission totals are larger
than the County-level estimates from which they are derived.
Table 1.5–1.

Demographic profile of Maricopa County and the eight-hour ozone NAA.
8-hr ozone
Percentage within
Demographic variable
Maricopa County
NAA
8-hr ozone NAA
Total resident population
3,843,370
3,873,528
100.78%
Total non-resident population
286,276
303,342
105.96%
Total population:
4,129,646
4,176,870
101.14%
Retail employment
Office employment
Industrial employment
Public employment
Other employment
Construction
Work at home
Total employment:
Single-family/multi-family household split:
Single-family
Multi-family

1.5.2

414,477
320,536
374,338
240,952
261,769
24,026
100,016
1,736,114

415,672
320,189
372,731
241,429
258,963
24,791
100,617
1,734,392

77%
23%

100.29%
99.89%
99.57%
100.20%
98.93%
103.18%
100.60%
99.90%

77%
23%

Land use data

MAG provided draft 2010 land use data. The 2010 land use data was assumed to be representative of 2011. Table 1.5–2 presents a summary of the land use categories and acreage used to
develop emission estimates for this inventory.

2011 Ozone Precursor Emissions Inventory

3

February 2014

Table 1.5–2.

Land use categories used to apportion emissions.
Acreage within
Maricopa
Land use category
County
General/active open space/golf course (e.g., parks)
210,159
Passive/restricted open space, washes
2,614,870
Lakes
12,525
Agriculture
276,016
Vacant (e.g., developable land)
2,045,587

1.6

Emissions overview by source category

1.6.1

Point sources

Acreage
within 8-hour
ozone NAA
211,297
1,188,251
12,525
161,371
911,304

Percentage
within 8-hour
ozone NAA
100.54%
45.44%
100.00%
58.46%
44.55%

The point source category includes those stationary sources that emit a significant amount of
pollution into the air such as power plants, petroleum product storage and transfer facilities, and
large industrial facilities. MCAQD utilizes the US EPA’s Annual Emissions Reporting
Requirements (AERR) rule to define which stationary sources are listed as point sources. A
detailed definition of a point source can be found in Section 2.1 of Chapter 2.
Table 1.6–1 summarizes annual and season-day emissions from point sources (including
emission reduction credits) in Maricopa County and the eight-hour ozone nonattainment area,
respectively. A detailed breakdown of emissions calculations for all point sources is contained
in Chapter 2.
Table 1.6–1.

Annual and season-day emissions from point sources.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
768.54
1,754.12
1,078.48
4,908.3
15,407.1
9,715.8
8-hour ozone NAA
768.54
1,754.12
1,078.48
4,908.3
15,407.1
9,715.8

1.6.2

Area sources

Area sources are facilities or activities whose individual emissions do not qualify them as point
sources. Area sources represent numerous facilities or activities that individually release small
amounts of a given pollutant, but collectively they can release significant amounts of a pollutant.
Emissions from stationary sources that were not identified as point sources in this report have
been included in the area source inventory. Examples of area source categories include
residential wood burning, commercial cooking, waste incineration and wildfires.
Tables 1.6–2 and 1.6–3 summarize annual and season-day emissions of the chief area source
categories, for Maricopa County and the eight-hour ozone nonattainment area, respectively. A
detailed breakdown of emissions calculations for each area source category is contained in
Chapter 3.

2011 Ozone Precursor Emissions Inventory

4

February 2014

Table 1.6–2.

Annual and season-day emissions from area sources in Maricopa County.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Source category
VOC
NOx
CO
VOC
NOx
CO
Fuel combustion
653.61
4,675.41
4,866.67
593.3
23,544.5
9,255.2
Industrial processes
2,284.00
263.41
585.79
17,516.5
1,489.5
3,396.2
Solvent use
28,153.45
167,043.9
Storage/transport
5,176.39
28,577.9
Waste treatment/disposal
115.61
56.21
193.56
842.6
320.7
1,227.1
Misc. area sources
271.58
166.54
4,765.93
13,982.3
6,680.5
281,693.1
All area sources:
36,654.65
5,161.56 10,411.95
228,556.4
32,035.2
295,571.5

Table 1.6–3.

Annual and season-day emissions from area sources in the eight-hour ozone NAA.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Source category
VOC
NOx
CO
VOC
NOx
CO
Fuel combustion
659.63
4,670.68
4,898.99
593.0
23,483.5
9,235.4
Industrial processes
2,276.48
263.41
590.27
17,452.4
1,489.5
3,420.8
Solvent use
28,139.77
166,557.4
Storage/transport
5,211.35
28,766.2
Waste treatment/disposal
116.10
56.04
190.06
837.8
315.6
1,119.6
Misc. area sources
261.09
161.70
4,664.71
13,650.0
6,531.8
278,544.9
All area sources:
36,664.42
5,151.83
10,344.03
227,856.8
31,820.5
292,320.7

1.6.3

Nonroad mobile sources

Nonroad mobile sources include off-highway vehicles and engines that move or are moved
within a 12-month period. Tables 1.6–4 and 1.6–5 summarize annual and season-day emissions
from nonroad mobile sources, for Maricopa County and the eight-hour ozone nonattainment
area, respectively. A detailed breakdown of emissions calculations for each source category is
contained in Chapter 4.
Table 1.6–4.

Annual and season-day emissions from nonroad mobile sources in Maricopa County.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Source category
VOC
NOx
CO
VOC
NOx
CO
Agricultural equipment
38.53
330.49
303.71
329.3
2,762.6
2,584.4
Airport GSE (+APU)
111.98
406.04
3,275.98
587.3
2,136.6
17,155.0
Commercial equipment
1,924.41
1,361.42
30,224.21
14,537.1
8,334.7 203,404.4
Construction & mining
1,881.88
12,937.30
14,396.92
13,116.9
87,972.9
99,942.8
Industrial equipment
341.25
1,839.35
7,140.99
2,212.6
11,763.4
46,138.5
Lawn & garden
4,913.96
866.64
54,798.41
51,990.4
6,998.4 523,235.5
Pleasure craft
530.39
96.56
1,249.66
11,527.0
1,996.8
26,738.3
Railway maintenance
1.94
8.55
16.48
14.2
59.0
117.8
Recreational equipment
1,518.97
66.10
6,373.46
17,804.4
679.3
74,424.8
Aircraft
1,719.33
2,588.82
11,781.38
8,451.0
12,548.2
65,325.4
Locomotives
77.60
1,406.08
245.74
425.2
7,704.5
1,346.5
All nonroad mobile sources:
13,060.24
21,907.35 129,806.94
120,995.4
142,956.4 1,060,413.4

2011 Ozone Precursor Emissions Inventory

5

February 2014

Table 1.6–5.

Annual and season-day emissions from nonroad mobile sources in the eight-hour ozone NAA.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Source category
VOC
NOx
CO
VOC
NOx
CO
Agricultural equipment
22.52
193.22
177.56
192.5
1,615.1
1,510.9
Airport GSE (+APU)
111.43
404.49
3,259.08
584.5
2,128.9
17,071.7
Commercial equipment
1,916.15
1,355.57
30,094.46
14,474.7
8,299.0
202,531.2
Construction & mining
1,941.80
13,349.23
14,855.32
13,534.5
90,774.0
103,125.0
Industrial equipment
339.78
1,831.45
7,110.33
2,203.1
11,712.9
45,940.4
Lawn & garden
4,970.15
876.55
55,425.05
52,584.9
7,078.4
529,218.9
Pleasure craft
530.39
96.56
1,249.66
11,527.0
1,996.8
26,738.3
Railway maintenance
1.96
8.64
16.67
14.4
59.7
119.1
Recreational equipment
684.30
29.78
2,871.27
8,020.9
306.0
33,528.7
Aircraft
1,705.43
2,585.98
11,719.36
8,385.8
12,535.3
64,993.6
Locomotives
50.15
901.12
153.29
274.8
4,937.7
839.9
All nonroad mobile sources:
12,274.06
21,632.59 126,932.05
111,797.1
141,443.8 1,025,617.7

1.6.4

Onroad mobile sources

Emissions from onroad mobile sources were calculated for Maricopa County and the eight-hour
ozone nonattainment area. A detailed description of emissions calculations is contained in
Chapter 5.
Table 1.6–6 summarizes annual and season-day emissions from onroad mobile sources in
Maricopa County and the eight-hour ozone nonattainment area, respectively.
Table 1.6–6. Annual and season-day emissions from onroad mobile sources in Maricopa County and the
eight-hour ozone NAA.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
24,556.85
60,269.94 235,088.25
150,603.7
319,470.2 1,378,165.5
8-hour ozone NAA
24,110.04
56,861.82 226,581.20
148,186.2
301,823.7 1,321,680.2

1.6.5

Biogenic sources

The biogenic source category includes emissions from all vegetation (e.g., crops, indigenous
vegetation, landscaping, etc.) in Maricopa County and the eight-hour ozone nonattainment area.
Emissions were estimated using the Model of Emissions of Gases and Aerosols from Nature
(MEGAN). MEGAN is a state-of-the-art biogenic emissions model developed by the National
Center for Atmospheric Research (NCAR). Some corrections and improvements were made in
the latest version of MEGAN2.1. MEGAN2.1 was used to compute biogenic emissions in
Maricopa County and the eight-hour ozone nonattainment area. Annual and season-day
emissions from biogenic sources are shown in Table 1.6–7 for Maricopa County and the eighthour ozone nonattainment area.
Table 1.6–7. Annual and season-day emissions from biogenic sources in Maricopa County and the eighthour ozone NAA.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
79,714.87
779.52
11,548.84
895,860.0
9,199.0
122,186.2
8-hour ozone NAA
55,311.84
527.18
5,934.55
624,395.0
6,231.7
62,584.2

2011 Ozone Precursor Emissions Inventory

6

February 2014

1.6.6

Summary of all source categories

Tables 1.6–8 and 1.6–9 provide summary totals of annual and season-day emissions from all
emission sources in Maricopa County and the eight-hour ozone nonattainment area, respectively.
Table 1.6–8.

Annual and season-day emissions from all sources in Maricopa County.
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Section
VOC
NOx
CO
VOC
NOx
CO
POINT SOURCES:
768.54 1,754.12
1,078.48
4,908.3 15,407.1
9,715.8
AREA SOURCES:
Fuel combustion:
Industrial distillate oil: Boilers
Industrial distillate oil: Engines
Industrial natural gas
Comm./inst. distillate oil: Boilers
Comm./inst. distillate oil: Engines
Comm./inst. natural gas
Residential distillate oil
Residential natural gas
Residential LPG
Residential wood combustion
Residential kerosene
All Fuel Combustion
Industrial Processes:
Chemical manufacturing
Commercial cooking
Bakeries
Secondary metal production
Rubber/plastic product mfg.
Electrical equipment mfg.
Industrial processes, NEC
All Industrial Processes
Solvent Use:
Architectural coatings
Auto refinishing
Traffic markings
Factory finished wood
Wood furniture
Aircraft surface coating
Miscellaneous surface coating
Degreasing
Dry cleaning
Graphics arts
Miscellaneous industrial solvent use
Consumer and commercial products
Cutback asphalt
Emulsified asphalt
Roofing asphalt
Agricultural pesticides
All Solvent Use

2011 Ozone Precursor Emissions Inventory

0.61
60.87
0.00 1,838.26
36.99
730.94
0.00
0.12
0.00
3.72
54.48 1,080.73
0.01
0.35
49.81
851.32
2.00
51.35
509.7
57.72
0.00
0.03
653.61 4,675.41
77.42
149.33
78.18
41.01
1,766.75
122.80
48.51
2,284.00

15.22
395.65
455.30
0.03
0.80
662.84
0.10
362.26
14.56
2,959.91
0.01
4,866.67

392.60
15.02

98.36

23.47
224.92
263.41

2.98
91.84
585.79

4,976.22
1,333.26
179.60
137.72
416.56
65.84
316.38
217.55
23.15
290.98
721.85
17,406.46
835.84
866.06
3.04
362.93
28,153.45

3.9
0.0
217.8
0.0
0.0
252.0
0.0
119.6
0.0
0.0
0.0
593.3
599.0
820.5
547.8
306.4
14,171.0
746.2
325.6
17,516.5

390.2
11,783.7
4,303.8
0.8
23.8
4,998.0
0.0
2,044.2
0.0
0.0
0.0
23,544.5

97.5
2,536.2
2,680.8
0.2
5.1
3,065.4
0.0
869.9
0.0
0.0
0.0
9,255.2

2,157.1
107.9

697.4

135.8
1,245.8
1,489.5

16.4
525.2
3,396.2

30,622.9
10,255.9
1,823.6
1,396.7
3,434.7
473.1
2,450.5
1,451.4
178.1
2,225.7
5,126.6
95,377.9
4,567.4
4,732.6
23.4
2,903.4
167,043.9

7

February 2014

Table 1.6–8.

Annual and season-day emissions from all sources in Maricopa County (continued).
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Section
VOC
NOx
CO
VOC
NOx
CO
Storage/Transport:
Residential portable gas cans
2,935.09
16,126.8
Commercial portable gas cans
564.43
3,101.2
Bulk plants
120.91
659.3
Gas stations Stage I: Submerged fill
85.08
528.7
Gas stations Stage I: Bal. submerged fill
229.60
1,426.8
Gas stations Stage II
0.00
0.0
Underground tanks: Breathing/emptying
777.00
4,138.6
Airports: aviation gasoline Stage I
347.57
1,904.5
Airports: aviation gasoline Stage II
18.04
98.8
Truck: gasoline (tank trucks in transit)
50.82
315.8
Pipeline gasoline
17.32
94.5
Volatile organic liquids storage/transport
30.54
182.7
All Storage/Transport
5,176.39
28,577.9
Waste Treatment/Disposal:
On-site incineration
Open burning: Land clearing debris
Landfills
Publicly owned treatment works
Leaking underground storage tanks
Other waste
All Waste Treatment/Disposal

0.17
0.67
36.59
75.02
1.05
2.12
115.61

3.31
0.30
30.40

0.79
6.30
108.55

22.19
56.21

77.93
193.56

Miscellaneous Area Sources:
Agricultural field burning
Structure fires
Aircraft engine testing
Vehicle fires
Crematories
Accidental releases
Hospitals
Wildfires
Prescribed fires
All Misc. Area Sources

26.14
14.78
4.72
9.27
1.18
0.45
8.57
206.08
0.39
271.58

11.62
1.88
46.36
1.16
11.19
0.00

246.85
80.63
16.16
36.23
2.23
0.00

93.95
0.38
166.54

4,379.29
4.54
4,765.93

1.1
20.5
200.7
577.1
32.3
10.9
842.6

21.4
9.1
167.4

5.3
193.8
596.4

122.8
320.7

431.4
1,227.1

804.2
72.4
26.1
50.8
51.1
2.1
52.3
12,794.0
129.2
13,982.3

357.4
9.2
259.3
6.4
88.5
0.0

7,595.5
395.2
91.2
198.5
17.3
0.0

5,832.6
127.1
6,680.5

271,872.2
1,523.2
281,693.1
295,571.5

ALL AREA SOURCES

36,654.65 5,161.56 10,411.95

228,556.4 32,035.2

NONROAD MOBILE SOURCES:
Agricultural equipment
Airport GSE (+APU)
Commercial equipment
Construction & mining equipment
Industrial equipment
Lawn and garden equipment
Pleasure craft
Railway maintenance equipment
Recreational equipment
Aircraft
Locomotives
ALL NONROAD MOBILE

38.53
111.98
1,924.41
1,881.88
341.25
4,913.96
530.39
1.94
1,518.97
1,719.33
77.60
13,060.24

329.3
587.3
14,537.1
13,116.9
2,212.6
51,990.4
11,527.0
14.2
17,804.4
8,451.0
425.2
120,995.4

ONROAD MOBILE SOURCES

24,556.85 60,269.94 235,088.25

330.49
406.04
1,361.42
12,937.30
1,839.35
866.64
96.56
8.55
66.10
2,588.82
1,406.08
21,907.35

303.71
3,275.98
30,224.21
14,396.92
7,140.99
54,798.41
1,249.66
16.48
6,373.46
11,781.38
245.74
129,806.94

2,762.6
2,584.4
2,136.6
17,155.0
8,334.7 203,404.4
87,972.9
99,942.8
11,763.4
46,138.5
6,998.4 523,235.5
1,996.8
26,738.3
59.0
117.8
679.3
74,424.8
12,548.2
65,325.4
7,704.6
1,346.5
142,956.4 1,060,413.4

150,603.7 319,470.2 1,378,165.5

79,714.87
779.52 11,548.84 895,860.0
9,199.0 122,186.2
BIOGENIC SOURCES
TOTAL, ALL SOURCE CATEGORIES 154,755.15 89,872.48 387,934.46 1,400,923.9 519,067.9 2,866,052.4

2011 Ozone Precursor Emissions Inventory

8

February 2014

Table 1.6–9.

Annual and season-day emissions from all sources in the eight-hour ozone nonattainment area.
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Section
VOC
NOx
CO
VOC
NOx
CO
POINT SOURCES:
768.54 1,754.12 1,078.48
4,908.3 15,407.1
9,715.8
AREA SOURCES:
Fuel combustion:
Industrial distillate oil: Boilers
Industrial distillate oil: Engines
Industrial natural gas
Comm./inst. distillate oil: Boilers
Comm./inst. distillate oil: Engines
Comm./inst. natural gas
Residential distillate oil
Residential natural gas
Residential LPG
Residential wood combustion
Residential kerosene
All Fuel Combustion:
Industrial processes:
Chemical manufacturing
Commercial cooking
Bakeries
Secondary metal production
Rubber/plastic product manufacturing
Electrical equipment manufacturing
Industrial processes, NEC
All Industrial Processes:
Solvent use:
Architectural coatings
Auto refinishing
Traffic markings
Factory finished wood
Wood furniture
Aircraft surface coating
Miscellaneous surface coating
Degreasing
Dry cleaning
Graphics arts
Miscellaneous industrial solvent use
Consumer and commercial products
Cutback asphalt
Emulsified asphalt
Roofing asphalt
Agricultural pesticides
All Solvent Use:

2011 Ozone Precursor Emissions Inventory

0.61
60.61
0.00 1,830.35
36.83
727.80
0.00
0.12
0.00
3.70
54.42 1,079.44
0.01
0.35
50.20
857.96
2.02
51.93
515.53
58.38
0.00
0.03
659.63 4,670.68
77.09
151.03
77.85
41.01
1,759.15
122.80
47.55
2,276.48

15.15
393.95
453.34
0.03
0.80
662.05
0.10
365.09
14.73
2,993.75
0.01
4,898.99

397.07

5,033.13
1,327.53
171.12
137.12
414.77
65.84
315.02
216.62
23.42
289.73
718.75
17,605.51
788.72
817.24
3.08
212.18
28,139.77

15.02

98.36

23.47
224.92
263.41

2.98
91.84
590.27

3.9
388.5
0.0 11,733.0
216.9
4,285.3
0.0
0.8
0.0
23.7
251.7
4,992.0
0.0
0.0
120.5
2,060.1
0.0
0.0
0.0
0.0
0.0
0.0
593.0 23,483.5
596.5
829.8
545.4
306.4
14,110.1
746.2
318.0
17,452.4

97.1
2,525.3
2,669.3
0.2
5.1
3,061.7
0.0
876.7
0.0
0.0
0.0
9,235.4

2,181.7
107.9

697.4

135.8
1,245.8
1,489.5

16.4
525.2
3,420.8

30,973.1
10,211.8
1,737.5
1,390.7
3,419.9
473.1
2,440.0
1,445.1
180.1
2,216.1
5,104.6
96,468.5
4,309.9
4,465.8
23.7
1,697.5
166,557.4

9

February 2014

Table 1.6–9. Annual and season-day emissions from all sources in the eight-hour ozone nonattainment area
(continued).
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Section
VOC
NOx
CO
VOC
NOx
CO
Storage/transport:
Residential portable gas cans
2,968.67
16,311.39
Commercial portable gas cans
570.89
3,136.73
Bulk plants
120.91
659.3
Gas stations Stage I: Submerged fill
85.08
528.7
Gas stations Stage I: Bal. submerged fill
229.60
1,426.8
Gas stations Stage II
0.00
0.0
Underground tanks: Breathing/emptying
777.00
4,138.6
Airports: Aviation gasoline Stage I
344.41
1,887.2
Airports: Aviation gasoline Stage II
17.87
97.9
Truck: Gasoline (tank trucks in transit)
50.82
315.8
Pipeline gasoline
17.32
94.5
Volatile organic liquids storage/transport
28.80
169.3
All Storage/Transport:
5,211.35
28,766.2
Waste treatment/disposal:
On-site incineration
Open Burning: Land clearing debris
Landfills
Publicly owned treatment works
Leaking underground storage tanks
Other waste
All Waste Treatment/Disposal:

0.17
0.30
36.59
75.88
1.05
2.12
116.10

3.31
0.13
30.40

0.79
2.81
108.55

22.19
56.04

77.93
190.06

Misc. area sources:
Agricultural field burning
Structure fires
Aircraft engine testing
Vehicle fires
Crematories
Accidental releases
Hospitals
Wildfires
Prescribed fires
All Misc. Area Sources

15.28
14.95
4.72
9.38
1.18
0.45
8.66
206.08
0.39
261.09

6.79
1.90
46.36
1.17
11.14
0.00

144.32
81.55
16.16
36.64
2.22
0.00

93.95
0.38
161.70

ALL AREA SOURCES:

36,664.42

5,151.83

NONROAD MOBILE SOURCES:
Agricultural equipment
Airport ground support equipment (+APU)
Commercial equipment
Construction & mining equipment
Industrial equipment
Lawn and garden equipment
Pleasure craft
Railway maintenance equipment
Recreational equipment
Aircraft
Locomotives
ALL NONROAD MOBILE SOURCES:
ONROAD MOBILE SOURCES:

1.1
9.1
200.7
583.7
32.3
10.9
837.8

21.4
4.1
167.4

5.3
86.4
596.4

122.8
315.6

431.4
1,119.6

209.0
9.3
259.3
6.4
88.1
0.0

4,440.7
399.7
91.2
200.8
17.2
0.0

4,379.28
4.54
4,664.71

470.2
73.3
26.1
51.4
50.9
2.1
52.9
12,794.0
129.2
13,650.0

5,832.6
127.1
6,531.8

271,872.2
1,523.2
278,544.9

10,344.03

227,856.8

31,820.5

292,320.7

22.52
111.43
1,916.15
1,941.80
339.78
4,970.15
530.39
1.96
684.30
1,705.43
50.15
12,274.06

193.22
177.56
404.49
3,259.08
1,355.57 30,094.46
13,349.23 14,855.32
1,831.45
7,110.33
876.55 55,425.05
96.56
1,249.66
8.64
16.67
29.78
2,871.27
2,585.98 11,719.36
901.12
153.29
21,632.59 126,932.05

192.5
584.5
14,474.7
13,534.5
2,203.1
52,584.9
11,527.0
14.4
8,020.9
8,385.8
274.8
111,797.1

1,615.1
1,510.9
2,128.9
17,071.7
8,299.0 202,531.2
90,774.0 103,125.0
11,712.9
45,940.4
7,078.4 529,218.9
1,996.8
26,738.3
59.7
119.1
306.0
33,528.7
12,535.3
64,993.6
4,937.7
839.9
141,443.8 1,025,617.7

24,110.04

56,861.82 226,581.20

148,186.2

301,823.7 1,321,680.2

BIOGENIC SOURCES:
55,311.84
TOTAL, ALL SOURCE CATEGORIES: 129,128.91

527.18
5,934.55 624,395.0
85,927.54 370,870.31 1,117,143.4

6,231.7
62,584.2
496,726.7 2,711,918.6

2011 Ozone Precursor Emissions Inventory

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2.
2.1

Point Sources
Introduction and scope

This inventory of ozone precursors (VOC, NOx, and CO) is one of two 2011emissions inventory
reports being prepared to meet US EPA reporting requirements. This inventory has been
developed concurrently with a similar inventory for PM10 and related pollutants (PM2.5, NOx,
SOx, and NH3) as part of Maricopa County's requirements under the respective SIPs.
In addition to preparing a periodic emissions inventory for the eight-hour ozone nonattainment
area (NAA) as a commitment under the current ozone State Implementation Plan (SIP), the
federal Air Emission Reporting Requirements (AERR) rule requires that state and local agencies
prepare emissions estimates on a county basis, and submit data electronically to the US EPA for
inclusion in the National Emissions Inventory (NEI) for 2011.
In order to provide consistency among all these inventories, it was decided to standardize the
definition of a “point source” by adopting the designation of point sources as outlined in the
AERR:
We are basing the requirement for point source format reporting on whether the
source is major under 40 CFR part 70 for the pollutants for which reporting is
required, i.e., CO, VOC, NOx, SO2, PM2.5, PM10, lead and NH3 but without regard
to emissions of HAPs… [T]his approach will result in a more stable universe of
reporting point sources, which in turn will facilitate elimination of overlaps and
gaps in estimating point source emissions, as compared to nonpoint source emissions. Under this requirement, states will know well in advance of the start of the
inventory year which sources will need to be reported. (US EPA, 2008)
This chapter contains several tables that provide information on point source emissions. Table
2.2–1 provides an alphabetical listing of all point sources and their location. Table 2.4–1 shows
the annual and ozone season-day emissions of VOC, NOx, and CO for those point sources which
reported emissions of one or more of these pollutants in 2011. Table 2.5–1 lists emission
reduction credits for the area, while Table 2.6–1 summarizes point source emission totals for
both Maricopa County and the eight-hour ozone nonattainment area. Note that the totals shown
in tables may not equal the sum of individual values due to independent rounding.

2.2

Identification of point sources

The Maricopa County Air Quality Department (MCAQD) identified point sources within Maricopa County through its electronic permit system database, EMS, and the 2011 annual emissions
reports submitted to the department. A total of 18 stationary sources were identified as point
sources using the definition described in Section 2.1. While the Arizona Department of
Environmental Quality (ADEQ) retains permitting authority for a limited number of industrial
source categories in Maricopa County, no ADEQ-permitted facilities are considered point
sources, and are addressed instead as area sources.
Table 2.2–1 contains an alphabetical listing of all point sources, including a unique business
identification number, NAICS industry classification code, business name, and physical address.

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Table 2.2–1. Name and location of all point sources in Maricopa County.
ID #
NAICS Business name
Address
3313
221112 APS West Phoenix Power Plant
4606 W Hadley St
43063 221112 Arlington Valley LLC
39027 W Elliot Rd
127771 331111 CMC Steel Fabricators Inc
11444 E Germann Rd
44439 221112 Gila River Power Station
1250 E Watermelon Rd
3300
92811
Luke AFB – 56th Fighter Wing
14002 W Marauder St
44186 221112 Mesquite Generating Station
37625 W Elliot Rd
43530 221112 New Harquahala Generating Co
2530 N 491st Ave
20706 32614
New Wincup Holdings Inc
7980 W Buckeye Rd
1879
562212 Northwest Regional Landfill
19401 W Deer Valley Rd
1331
337122 Oak Canyon Manufacturing Inc
3021 N 29th Dr
52382 221112 Ocotillo Power Plant
1500 E University Dr
42956 221112 Redhawk Generating Facility
11600 S 363rd Ave
303
332431 Rexam Beverage Can Company
211 N 51st Ave
3315
221112 Santan Generating Station
1005 S Val Vista Rd
4175
424710 SFPP LP Phoenix Terminal
49 N 53rd Ave
3316
221112 SRP Agua Fria Generating Station
7302 W Northern Ave
3317
221112 SRP Kyrene Generating Station
7005 S Kyrene Rd
1210
337122 Trendwood Inc
2402 S 15th Ave

2.3

City
Phoenix
Arlington
Mesa
Gila Bend
Glendale
Arlington
Tonopah
Phoenix
Surprise
Phoenix
Tempe
Arlington
Phoenix
Gilbert
Phoenix
Glendale
Tempe
Phoenix

ZIP
85043
85322
85212
85337
85309
85322
85354
85043
85387
85017
85281
85322
85043
85296
85043
85303
85283
85007

Procedures for estimating emissions from point sources

Annual and season-day emission estimates were determined from annual source emissions
reports, MCAQD investigation reports, permit files and logs, or telephone contacts with sources.
For most of the sources, material balance methods were used for determining emissions. Emissions were estimated using the emission factors from AP–42, source tests, engineering calculations, or manufacturers' specifications.
MCAQD distributes annual emissions survey forms to nearly all facilities for which MCAQD
has issued an operating permit. Facilities are required to report detailed information on stacks,
control devices, operating schedules, and process-level information concerning their annual
activities. (See Appendix A for a copy of the instructions to complete the emissions inventory.)
These instructions include examples and explanations on how to complete the annual emissions
reporting forms that facilities must submit to MCAQD.
After a facility has submitted an annual emissions report to MCAQD, emissions inventory staff
check all reports for missing and questionable data, and check the accuracy and reasonableness
of all emissions calculations with AP–42, the Factor Information and REtrieval (webFIRE)
software, and other EPA documentation. Control efficiencies are determined by source tests
when available, or by AP–42 factors, engineering calculations, or manufacturers’ specifications.
MCAQD has conducted annual emissions surveys for permitted facilities since 1988, and the
department's database system, EMS, contains numerous automated quality assurance/quality
control checks for data input and processing.

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2.3.1

Application of rule effectiveness

Rule effectiveness reflects the actual ability of a regulatory program to achieve the emission
reductions required by regulation. The concept of applying rule effectiveness in a SIP emissions
inventory has evolved from the observation that regulatory programs may be less than 100
percent effective for some source categories. Rule effectiveness (“RE”) is applied to those
sources affected by a regulation and for which emissions are determined by means of emission
factors and control efficiency estimates.
For processes that claimed emissions reductions through the use of a control device, RE
calculations were performed separately for Title V and non-Title V sources. Overall RE values
of 91.81% (for Title V processes) and 87.81% (for non-Title V processes) were calculated.
Appendix B contains further details on the methods and data used in computing the above RE
rates.

2.4

Detailed overview of point source emissions

Table 2.4–1 provides a summary of annual and season-day emissions from all point sources. All
point sources are located within the eight-hour ozone nonattainment area, therefore, county and
nonattainment area emissions are equal. Sources for which rule effectiveness has been applied
are noted. Values of “0.00” and “0.0” for annual and daily emissions denote a value below the
level of significance (0.005 tons/yr and 0.05 lbs/day, respectively).
Table 2.4–1.
ID #
3313
43063
127771
44439
3300
44186
43530
20706
1879
1331
52382
42956
303
3315
4175
3316
3317
1210

Annual and season-day point source emissions, by facility.
Annual emissions (tons/yr)
Business name
VOC
NOx
CO
APS West Phoenix Power Plant
* 28.43
596.56
80.92
Arlington Valley LLC
0.52
38.68
24.12
CMC Steel Fabricators Inc
* 23.63
34.05
455.94
Gila River Power Station
10.40
194.22
53.43
Luke AFB – 56th Fighter Wing
*
8.07
10.04
5.36
Mesquite Generating Station
* 22.53
192.49
22.99
New Harquahala Generating Co
* 15.50
23.24
35.24
New Wincup Holdings Inc
125.98
11.82
2.10
Northwest Regional Landfill
2.47
9.74
5.18
Oak Canyon Manufacturing Inc
62.86
Ocotillo Power Plant
4.79
82.96
15.54
Redhawk Generating Facility
5.61
150.82
168.87
Rexam Beverage Can Company
99.49
4.35
3.65
Santan Generating Station
*
8.78
257.77
150.24
SFPP LP Phoenix Terminal
101.15
4.89
5.53
SRP Agua Fria Generating Station *
1.88
104.92
25.55
SRP Kyrene Generating Station
3.16
27.77
8.51
Trendwood Inc
128.59
TOTAL:
653.84 1,744.32 1,063.18

Ozone season day (lbs/day)
VOC
NOx
CO
163.6
4,162.0
422.6
8.7
605.4
377.5
226.7
318.6 4,376.6
93.9
1,777.7
501.0
53.1
52.2
22.5
134.0
1,146.1
137.2
169.0
251.0
386.3
684.0
65.1
12.9
13.6
53.5
28.5
483.5
51.1
1,087.8
203.7
26.6
813.2
890.8
481.1
21.0
17.7
87.7
2,817.6 1,648.7
556.6
36.2
47.4
32.2
1,900.1
481.8
25.2
245.8
76.9
989.1
4,279.8 15,353.4 9,632.0

* = Facility for which rule effectiveness has been applied.

2.5

Emission reduction credits

A major source or major modification planned in a nonattainment area must obtain emissions
reductions as a condition for approval. These emissions reductions, generally obtained from

2011 Ozone Precursor Emissions Inventory

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existing sources located in the vicinity of a proposed source, must offset the emissions increase
from the new source or modification. The obvious purpose of acquiring offsetting emissions
decreases is to allow an area to move towards attainment of the national ambient air quality
standards while still allowing some industrial growth.
In order for these emission reductions to be available in the future for offsetting, they must be: 1)
explicitly included and quantified as growth in projection-year inventories required in rate of
progress plans or attainment demonstrations that were based on 1990 actual inventories, and 2)
meet the requirements outlined in MCAQD Rule 240 (Permit Requirements for New Major
Sources and Major Modification to Existing Major Sources).
Table 2.5–1 provides a list of emission reduction credits for VOC, NOx, and CO.
Table 2.5–1.
ID
1151

2.6

Emission reduction credits as of December 31, 2011.

Facility/ Owner
Freescale Semiconductor, Inc.
Grey K Envl Fund, NYC
Woodstuff Mfg
TOTAL:

Reduction Date
3/1/2004
12/11/2006
11/30/2007

Emission reduction credits (tons/yr)
VOC
NOx
CO
17.1
9.8
15.3
80.0
17.6
114.7
9.8
15.3

Summary of point source emissions

Table 2.6–1 provides a summary of point source emissions for Maricopa County and the eighthour ozone nonattainment area, including emission reduction credits.
Table 2.6–1.

Annual and season-day point source emissions (including emission reduction credits).
Annual (tons/yr)
Season-day emissions (lbs/day)
Geographic Area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
768.54
1,754.12
1,078.48
4,908.3
15,407.1
9,715.8
8-hr ozone NAA
768.54
1,754.12
1,078.48
4,908.3
15,407.1
9,715.8

2.7

Quality assurance/quality control procedures

2.7.1

Emission survey preparation and data collection

The MCAQD's Emissions Inventory (EI) Unit annually collects point source criteria pollutant
emission data from sources in the county. MCAQD annually reviews EPA guidance, documents
from the Emissions inventory Improvement Program (EIIP), and other source materials to ensure
that the most current emission factors and emission calculation methods are used for each year’s
survey. Each January, the EI Unit prepares a pre-populated hard copy of the preceding year’s
submissions and mails reporting forms to permitted sources, along with detailed instructions for
completing the forms. (A copy of these instructions is included as Appendix A). The EI Unit
asks sources to verify and update the data. The EI Unit also holds numerous workshops each
spring to assist businesses in completing EI forms.
The general data flow for data collection and inventory preparation is shown in Figure 2.7–1.

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Figure 2.7–1. Data flow for annual point source emissions inventory reporting.

EI Reporting
Forms
•
•

Hard Copy Forms/
Instructions
Instruction on Web

EI Reporting
Forms

Log In EI
reports/ Issue
Receipts

Issue NOVs for
late submitters

•
•
•

Data Entry

EMS

Code/field check
Range checks
Referential value checks

Create
Inventory files

Automated QA checks

Technical QA/
QC

Using completed survey data

Finalized Inventory
Data
Reconciliation

2.7.2

Submission processing

Submitted EI reports are logged in as they are received, and receipts are issued for emissions fees
paid. The data are input “as received” into the department's data base. During data entry, a variety of automated quality control (QC) checks are performed, including:
•
•
•
•
•

pull-down menus to minimize data entry errors (e.g., city, pollutant, emission factor unit,
etc.)
mandatory data field requirement checks (e.g., a warning screen appears if a user tries to save
an emission record with a missing emission factor).
range checks (e.g., were valid SCC, Tier, SIC, and NAICS codes entered?)
referential value checks (e.g., emission factor units, annual throughput units)
automatic formatting of date, time, telephone number fields, etc.

Automated quality assurance (QA) checks on the report that has been entered include the
following:
•
•

Comparing reported emission factors to SCC reference lists
Comparing reported emission factors to material name reference list

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•
•

Checking the report for calculation errors. This includes annual throughput, emission
factors, unit conversion factors (e.g., BTU to therms), capture efficiency, primary / secondary
control device efficiency, and any offsite recycling credits claimed.
Checking the report for completeness of required data.

When data entry is complete, an electronic version of the original data is preserved separately to
document changes made during the technical review and QA/QC process.
When errors are flagged, the businesses are contacted and correct information is obtained and
input to the EMS. Outstanding reporting issues are documented. Confidential business information (CBI) is identified by a checkbox on the form, and these data elements are flagged during
data entry and are not transmitted to the EPA.
To prepare the inventory for submittal to the National Emissions Inventory (NEI), the EI Unit
has developed a series of MS-Access queries to extract data from EMS; and to append or convert
codes, units of measure, etc., in order to create staging tables that adhere to the EPA’s
Consolidated Emissions Reporting Schema (CERS). These tables are then converted to XML
files using EPA’s Bridge conversion tool for submittal to the EPA’s Emissions inventory System
(EIS).

2.7.3

Analysis of annual point source emissions data for this inventory

Two air quality planners checked inventory accuracy and reasonableness, and assured that all
point sources had been identified and that the methodology applied to calculate emissions was
appropriate and that the calculations were correct. Other reasonableness checks were conducted
by recalculating emissions using methods other than those used to make the initial emissions calculations and then comparing results. QA was conducted by checking all emissions reports submitted to MCAQD for the year 2011 for missing and questionable data and by checking the
accuracy and reasonableness of all emissions calculations made for such reports. Notes concerning follow-up calls and corrections to calculations were documented on each 2011 annual
emissions report.
The QA point source coordinator reviewed and checked calculations, identified errors, and
performed completeness, reasonableness and accuracy checks.

2.8

References

US EPA, 2008. Air Emissions Reporting Requirements: Final Rule. 73 Fed. Reg. 76539.
Available at: http://www.epa.gov/ttn/chief/aerr/final_published_aerr.pdf.

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3.
3.1

Area Sources
Scope and methodology

This chapter considers all stationary sources which are too small or too numerous to be treated as
point sources. US EPA guidance documents, including “Introduction to Area Source Inventory
Development” (US EPA, 2001a) as well as permit and emissions data in the MCAQD’s Environmental Management System (EMS) database, and previous SIP inventories, were evaluated to
develop the list of area source categories for inclusion. Some source categories were deemed
“insignificant” because there are no large production facilities and/or very few small sources, and
therefore emissions were not quantified. MCAQD prepared the emission estimates for all area
sources and provided quality assurance checks on all data. Table 3.1–1 contains a list of all area
source categories, with Source Classification Codes (SCCs), addressed in this chapter.
Table 3.1–1.
SCC code

List of area source categories included in this ozone precursor inventory.
Area source description
Section

2102004001
2102004002
2102006000
2103004001
2103004002
2103006000
2104004000
2104006000
2104007000
2104011000
2104008100
2104008210
2104008220
2104008230
2104008310
2104008320
2104008330
2104008400
2104008610
2104008700
2104009000

Fuel combustion:
Industrial distillate oil: Boilers
Industrial distillate oil: Engines
Industrial natural gas
Commercial/institutional distillate oil: Boilers
Commercial/institutional distillate oil: Engines
Commercial/institutional natural gas
Residential distillate oil
Residential natural gas
Residential liquefied petroleum gas (LPG)
Residential kerosene
Residential Wood Combustion (RWC): Fireplace
RWC: Woodstove: fireplace inserts: Non-EPA certified
RWC: Woodstove: fireplace inserts: EPA certified; non-catalytic
RWC: Woodstove: fireplace inserts: EPA certified; catalytic
RWC: Woodstove: freestanding: Non-EPA certified
RWC: Woodstove: freestanding: EPA certified, non-catalytic
RWC: Woodstove: freestanding: EPA certified, catalytic
RWC: Woodstove: Pellet-fired
RWC: Hydronic heater: Outdoor
RWC: Outdoor wood burning device, NEC
RWC: Residential firelog

3.2
3.2.1
3.2.1
3.2.2
3.2.3
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.2.9
3.2.9
3.2.9
3.2.9
3.2.9
3.2.9
3.2.9
3.2.9
3.2.9
3.2.9

2301000000
2302002100
2302002200
2302003000
2302003100
2302003200
2302050000
2304000000
2308000000
2312000000
2399000000

Industrial processes:
Chemical manufacturing
Commercial cooking: Conveyorized charbroiling
Commercial cooking: Under-fired charbroiling
Commercial cooking: Deep fat frying
Commercial cooking: Flat griddle frying
Commercial cooking: Clamshell griddle frying
Bakeries
Secondary metal production
Rubber/plastics product manufacturing
Electrical equipment manufacturing
Industrial processes not elsewhere classified (NEC)

3.3
3.3.1
3.3.2.1
3.3.2.1
3.3.2.1
3.3.2.1
3.3.2.1
3.3.2.2
3.3.3
3.3.4
3.3.5
3.3.6

2401001000
2401005000
2401008000
2401015000

Solvent use:
Architectural coatings
Auto refinishing
Traffic markings
Factory-finished wood

3.4
3.4.1.1
3.4.1.2
3.4.1.3
3.4.1.4

2011 Ozone Precursor Emissions Inventory

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February 2014

Table 3.1–1.
AMS code
2401020000
2401075000
2401090000
2415000000
2420000000
2425000000
2440000000
2460100000
2460200000
2460400000
2460500000
2460600000
2460800000
2460900000
2461021000
2461022000
2461023000
2461850000

List of area source categories included in this inventory (continued).
Area source description
Section
Wood furniture
3.4.1.5
Aircraft surface coating
3.4.1.6
Miscellaneous surface coating
3.4.1.7
Degreasing
3.4.2
Dry cleaning
3.4.3
Graphic arts
3.4.4
Miscellaneous industrial solvent use
3.4.5
Consumer & commercial products (C&CP): Personal care products 3.4.6
C&CP: Household products
3.4.6
C&CP: Automotive aftermarket products
3.4.6
C&CP: Coatings and related products
3.4.6
C&CP: Adhesives and sealants
3.4.6
C&CP: FIFRA related products
3.4.6
C&CP: Miscellaneous products, NEC
3.4.6
Cutback asphalt
3.4.7
Emulsified Asphalt
3.4.7
Roofing Asphalt
3.4.7
Agricultural pesticides
3.4.8

2501011011
2501011012
2501011013
2501011014
2501011015
2501012011
2501012012
2501012013
2501012014
2501012015
2501055120
2501060051
2501060053
2501060201
2501080050
2501080100
2505030120
2505040120
2510000000

Storage and transport:
Residential portable gas cans (RPG): Permeation
RPG: Evaporation
RPG: Spillage during transport
RPG: Refilling at the pump - vapor displacement
RPG: Refilling at the pump - spillage
Commercial portable gas cans (CPG): Permeation
CPG: Evaporation
CPG: Spillage during transport
CPG: Refilling at the pump - vapor displacement
CPG: Refilling at the pump - spillage
Bulk plants
Gasoline service stations Stage I: Submerged filling
Gasoline service stations Stage I: Balanced submerged filling
Gasoline service stations: Underground tank, breathing/emptying
Airports: Aviation gasoline Stage I: Total
Airports: Aviation gasoline Stage II: Total
Gasoline tank trucks in transit
Pipeline gasoline
Volatile organic liquid (VOL) storage and transport

3.5
3.5.1
3.5.1
3.5.1
3.5.1
3.5.1
3.5.1
3.5.1
3.5.1
3.5.1
3.5.1
3.5.2
3.5.3
3.5.3
3.5.5
3.5.6
3.5.6
3.5.7
3.5.8
3.5.9

2601000000
2610000500
2620000000
2630020000
2660000000
2650000000

Waste treatment and disposal:
On-site incineration
Open burning: Land clearing debris
Landfills
Publicly owned treatment works
Leaking underground storage tanks
Other waste

3.6
3.6.1
3.6.2
3.6.3
3.6.4
3.6.5
3.6.6

2801500000
2810030000
2810040000
2810050000
2810060100
2830001000
2850000000
n/a
n/a

Miscellaneous area sources:
Agricultural field burning
Structure fires
Aircraft engine testing
Vehicle fires
Crematories
Accidental releases
Hospitals
Wildfires
Prescribed fires

3.7
3.7.1
3.7.2
3.7.3
3.7.4
3.7.5
3.7.6
3.7.7
3.7.8
3.7.9

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18

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For nearly all categories, emissions were calculated in one of the following ways:
• Emissions estimates for some categories were developed by conducting surveys on local
usage (e.g., natural gas consumption) or derived from state-wide data (e.g., fuel oil use).
• For some widespread or diverse categories (e.g., consumer solvent use), emissions were
calculated using published per-capita or per-employee emission factors.
• For source categories with some information available from annual emissions reports (e.g.,
bakeries), these data were combined with employment data to “scale up” reported emissions
to reflect the entire source category.
• For those source categories with detailed emissions data available from most or all of the
significant sources in the category, emissions were calculated based on detailed process-level
and operational data provided by these sources.
The specific emissions estimation methodologies used for each source category (including the
derivation and application of rule effectiveness) are described in greater detail in the respective
sections.

3.2

Fuel combustion

Area-source emission estimates are provided in this section for the following categories of fuel
consumption: Industrial distillate oil, industrial natural gas, commercial/institutional distillate oil,
commercial/institutional natural gas, residential distillate oil, residential natural gas, residential
liquefied petroleum gas, residential kerosene, and residential wood.
Data for natural gas combustion emission estimates came from a survey of the three natural gas
suppliers in Maricopa County. Table 3.2–1 summarizes the natural gas sales data received from
Maricopa County natural gas suppliers.
Table 3.2–1.

Maricopa County natural gas sales by end-user category and supplier.
Sales by end-user category (in MMCF/yr)
Natural gas
Electric
Commercial/
supplier
Utilities
Industrial
Institutional
Residential
Transport*
Southwest Gas
n/a
592.74
13,303.23
17,083.04
9,288.47
City of Mesa
n/a
91.17
1,631.61
1,030.07
175.13
El Paso
112,963.97
150.78
n/a
n/a
n/a
Total:
112,963.97
834.68
14,934.84
18,113.11
9,463.60

Other*
406.92
n/a
n/a
406.92

*For emissions calculations, sales from transport and other were grouped with industrial sales.

3.2.1

Industrial distillate oil

Annual emissions from industrial distillate oil combustion were derived from EPA NEI (US
EPA, 2012c) calculations. Emissions come from two different sources, boilers and engines
burning distillate oil.
Ozone season-day emissions for the county are calculated by first multiplying annual emissions
by 25% to estimate ozone season totals. Ozone season emission totals are then divided by the
number of days that activity occurs during the ozone season (6 days/week and 13 weeks), as
recommended by EIIP guidance (US EPA, 2001a). Annual and season-day emissions in the
eight-hour ozone nonattainment area were calculated by applying the ratio of industrial

2011 Ozone Precursor Emissions Inventory

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employment in the nonattainment area to county-level emission calculations (99.57%). (See
Section 1.5.1 for a discussion of the employment data used). Results for boilers and engines are
shown in Tables 3.2–2 and 3.2–3, respectively.
Table 3.2–2.
boilers.

Annual and season-day emissions from area-source industrial distillate oil combustion for

Geographic area
Maricopa County
8-hr ozone NAA
Table 3.2–3.
engines.

Season-day emissions (lbs/day)
VOC
NOx
CO
3.9
390.2
97.5
3.9
388.5
97.1

Annual and season-day emissions from area-source industrial distillate oil combustion for

Geographic area
Maricopa County
8-hr ozone NAA

3.2.2

Annual emissions (tons/yr)
VOC
NOx
CO
0.61
60.87
15.22
0.61
60.61
15.15

Annual emissions (tons/yr)
VOC
NOx
CO
0.00
1,838.26
395.65
0.00
1,830.35
393.95

Season-day emissions (lbs/day)
VOC
NOx
CO
0.0
11,783.7
2,536.2
0.0
11,733.0
2,525.3

Industrial natural gas

All natural gas suppliers in Maricopa County were surveyed to gather information on the volume
of natural gas distributed, by user category, within the county in 2011. Area-source industrial
natural gas usage for the county is based on the reported total volume of natural gas sold to
industrial sources (10,705.20 MMCF), minus natural gas used by industrial point sources (463.95
MMCF).
Natural gas is used for both external combustions (boilers and heaters) and internal combustion
(generators), each of which have different emission factors. Thus the area-source natural gas
usage derived above must be divided between these two categories. This apportionment was
based on the percentages of external and internal natural gas combustion reported by all industrial area sources in 2008. A 2008 apportionment was used because 2011 data were not available
for all industrial area sources at the time that these emission estimates were developed.
Annual emissions for the county were calculated by multiplying natural gas usage by the
respective emission factors for external (SCC=102006* & 103006*) and internal
(SCC=2020020*) combustion obtained from EPA’s WebFIRE database (US EPA, 2012a).
Table 3.2–4. Natural gas usage, emission factors, and annual emissions from area-source industrial natural
gas consumption, by combustion type.
Combustion
% of
Natural gas usage Emission factors (lb/MMCF) Annual emissions (tons/yr)
type
total
(MMCF)
VOC
NOx
CO
VOC
NOx
CO
External
98.44
10,081.49
5.5
100
84
27.72
504.07
423.42
Internal
1.56
159.76
116
2,840
399
9.27
226.86
31.87
Total:
100.00
10,241.25
36.99
730.94
455.30

Ozone season-day emissions for the county are calculated by first multiplying annual emissions
by the percentage of industrial natural gas sold used during the ozone season (22.96%). (Figures
reported by natural gas suppliers for the June–August time period are assumed to be representative for the July–September ozone season.) Ozone season emission totals are then divided by
the number of days that activity occurs during the ozone season (6 days/wk × 13 wks/season).

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Annual and season-day emissions within the eight-hour ozone nonattainment area were calculated by applying the ratio of industrial employment in the nonattainment area to county-level
emission calculations (99.57%). (See Section 1.5.1 for a discussion of the employment data
used).
Table 3.2–5.

Annual and season-day emissions from area-source industrial natural gas combustion.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
36.99
730.94
455.30
217.8
4,303.8
2,680.8
8-hr ozone NAA
36.83
727.80
453.34
216.9
4,285.3
2,669.3

3.2.3

Commercial/institutional distillate oil

Annual emissions from commercial/institutional distillate oil combustion were derived from
EPA NEI (US EPA, 2012c) calculations. Emissions come from two different sources, boilers
and engines burning distillate oil.
Ozone season-day emissions for the county are calculated by first multiplying annual emissions
by 25% to estimate ozone season totals. Ozone season emission totals are then divided by the
number of days that activity occurs during the ozone season (6 days/week and 13 weeks), as
recommended by EIIP guidance (US EPA, 2001a). Annual and season-day emissions in the
eight-hour ozone nonattainment area were calculated by applying the ratio of industrial
employment in the nonattainment area to county-level emission calculations (99.57%). (See
Section 1.5.1 for a discussion of the employment data used.) Emissions estimates for boilers and
engines are shown in Tables 3.3–6 and 3.3–7, respectively.
Table 3.2–6. Annual and season-day emissions from area-source commercial/institutional distillate oil
combustion for boilers.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
0.00
0.12
0.03
0.0
0.8
0.2
8-hr ozone NAA
0.00
0.12
0.03
0.0
0.8
0.2
Table 3.2–7. Annual and season-day emissions from area-source commercial/institutional distillate oil
combustion for engines.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
0.00
3.72
0.80
0.0
23.8
5.1
8-hr ozone NAA
0.00
3.70
0.80
0.0
23.7
5.1

3.2.4

Commercial/institutional natural gas

All natural gas suppliers in Maricopa County were surveyed to gather information on the volume
of natural gas distributed, by user category, within the county in 2011. Area-source commercial
and institutional (C&I) natural gas usage for the county is based on the reported total volume of
natural gas sold to C&I sources (14,934.84 MMCF), minus natural gas used by C&I point
sources (77.80 MMCF).
Natural gas is used for both external combustion (boilers, heaters) and internal combustion
(generators), each of which have different emission factors. Thus the area-source natural gas
usage derived above must be apportioned between these two categories. This apportionment was
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February 2014

based on the percentages of external and internal natural gas combustion reported by all C&I
area sources in 2008. A 2008 apportionment was used because 2011 data were not available for
all C&I area sources at the time that these emission estimates were developed.
Annual emissions for the county were calculated by multiplying natural gas usage by the
respective emission factors for external (SCC=1020060*) and internal (SCC=2020020*)
combustion obtained from EPA’s WebFIRE database (US EPA, 2012a).
Table 3.2–8. Emission factors and annual emissions from area-source commercial/institutional natural gas
combustion, by combustion type.
Emission factors (lb/MMCF)
Annual emissions (tons/yr)
Combustion
% of
Natural gas
type
total
usage (MMCF)
VOC
NOx
CO
VOC
NOx
CO
External
98.34
14,610.42
5.5
100
84
40.18
730.52
613.64
Internal
1.66
246.63
116
2,840
399
14.30
350.21
49.20
Total:
100.00
14,857.04
54.48
1,080.73
662.84

Ozone season-day emissions for the county were calculated by first multiplying annual emissions
by the percentage of C&I natural gas used during the ozone season (18.04%). (Figures reported
by natural gas suppliers for the June–August time period are assumed to be representative of the
July–September ozone season.) Ozone season emission totals are then divided by the number of
days that activity occurs during the ozone season (6 days/wk × 13 wks/yr).
Annual and season-day emissions within the eight-hour ozone nonattainment area were
calculated by applying the combined ratio of retail, office, public and other employment in the
nonattainment area to county-level emission calculations (99.88%). (See Section 1.5.1 for a
discussion of the employment data used).
Table 3.2–9.
combustion.

Annual and season-day emissions from area-source commercial/institutional natural gas

Geographic area
Maricopa County
8-hr ozone NAA

3.2.5

Annual emissions (tons/yr)
VOC
NOx
CO
54.48
1,080.73
662.84
54.42
1,079.44
662.05

Season-day emissions (lbs/day)
VOC
NOx
CO
252.0
4,998.0
3,065.4
251.7
4,992.0
3,061.7

Residential distillate oil

Annual emissions from residential distillate oil were derived from EPA NEI (US EPA, 2012c)
calculations. Ozone season-day emissions would normally be calculated by dividing ozone
season emissions by heating degree days (i.e. the number of degrees per day that the daily
average temperature is below 65°F). However, data obtained from Arizona Energy Statistics
(GOEP, 2013) indicated that there were no heating degree days reported during the 2011 ozone
season (July–September). Thus, ozone season-day emissions from residential distillate oil
combustion are assumed to be zero.
Annual and season-day emissions within the eight-hour ozone nonattainment area were calculated by multiplying county totals by the ratio of total population in the nonattainment area to the
total population in the county (101.14%). See Section 1.5.1 for a further discussion of the
population used. Table 3.2–10 summarizes annual and ozone season-day emissions from
residential distillate oil combustion for both the county and the eight-hour ozone nonattainment
area.

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Table 3.2–10. Annual and season-day emissions from residential distillate oil combustion.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
0.01
0.35
0.10
0.0
0.0
0.0
8-hr ozone NAA
0.01
0.35
0.10
0.0
0.0
0.0

3.2.6

Residential natural gas

All natural gas suppliers in Maricopa County were surveyed to gather information on the volume
of natural gas sold, by user category, within the county. Annual emissions from residential
natural gas combustion emissions were calculated by multiplying 2011 residential natural gas
sales (18,113.11 MMCF) by emission factors for residential natural gas combustion summarized
in the table below (US EPA, 1998).
Table 3.2–11. Residential natural gas combustion emission factors.
Pollutant
Emission Factor (lb/MMCF)
VOC
5.5
NOx
94.0
CO
40.0

Ozone season-day emissions were calculated by first multiplying reported natural gas usage
during the ozone season (1,978.95 MMCF) by the AP-42 emission factors for residential natural
gas combustion to produce ozone season emissions. (Natural gas usage reported for the months
of June–August is assumed to represent ozone season usage). Ozone season emissions were then
divided by days during the ozone season that residential natural gas combustion occurs (7
days/wk × 13 wks/yr) (US EPA, 2001a).
Annual and season-day residential natural gas emissions in the eight-hour ozone nonattainment
area were calculated by multiplying county-level emissions by the percentage of total resident
population in the eight-hour ozone nonattainment area (100.78%).
Table 3.2–12. Annual and season-day emissions from residential natural gas combustion.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
49.81
851.32
362.26
119.6
2,044.2
869.9
8-hr ozone NAA
50.20
857.96
365.09
120.5
2,060.1
876.7

3.2.7

Residential liquefied petroleum gas (LPG)

Annual emissions from residential liquefied petroleum gas (LPG) were derived from EPA NEI
(US EPA, 2012c) calculations.
Ozone season-day emissions would normally be calculated by dividing ozone season emissions
by heating degree days (i.e. the number of degrees per day that the daily average temperature is
below 65°F). However, data obtained from Arizona Energy Statistics (GOEP, 2013) indicated
that there were no heating degree days reported during the 2011 ozone season (July–September).
Thus, ozone season-day emissions from residential liquefied petroleum gas (LPG) combustion
are assumed to be zero.

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February 2014

Annual and season-day emissions within the eight-hour ozone nonattainment area were calculated by multiplying county totals by the ratio of total population in the nonattainment area to the
total population in the county (101.14%). See Section 1.5.1 for a further discussion of the
population used.
Table 3.2–13 summarizes annual and ozone season-day emissions from residential liquefied
petroleum gas (LPG) combustion for both the county and the eight-hour ozone nonattainment
area.
Table 3.2–13. Annual and season-day emissions from residential liquefied petroleum gas (LPG) combustion.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
2.00
51.35
14.56
0.0
0.0
0.0
8-hr ozone NAA
2.02
51.93
14.73
0.0
0.0
0.0

3.2.8

Residential kerosene

Annual emissions from residential kerosene were derived from EPA NEI (US EPA, 2012c)
calculations.
Ozone season-day emissions would normally be calculated by dividing annual emissions by
heating degree days (i.e. the number of degrees per day that the daily average temperature is
below 65°F). However, data obtained from Arizona Energy Statistics (GOEP, 2013) indicated
that there was no heating degree days reported during the 2011 ozone season (July–September).
Thus, ozone season-day emissions from residential kerosene combustion are assumed to be zero.
Annual and season-day emissions within the eight-hour ozone nonattainment area were
calculated by multiplying county totals by the ratio of total population in the nonattainment area
to the total population in the county (101.14%). See Section 1.5.1 for a further discussion of the
population used.
Table 3.2–14 summarizes annual and season-day emissions from residential kerosene
combustion for both the county and the eight-hour ozone nonattainment area.
Table 3.2–14. Annual and season-day emissions from residential kerosene combustion.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
0.00
0.03
0.01
0.0
0.0
0.0
8-hr ozone NAA
0.00
0.03
0.01
0.0
0.0
0.0

3.2.9

Residential wood combustion

Annual emissions from residential wood combustion for Maricopa County were obtained from
the US Environmental Protection Agency’s Residential Wood Combustion Estimation Tool (US
EPA, 2012b). County-level annual emissions by appliance type are shown below in Table 3.2–
15.

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February 2014

Table 3.2–15. Annual emissions by appliance type for Maricopa County from EPA’s residential wood
combustion estimation tool.
Annual emissions (tons/yr)
SCC
Appliance Type
VOC
NOx
CO
2104008100 Fireplace
191.08 26.29 1,506.38
2104008210 Woodstove: fireplace inserts; non-EPA certified
147.35
7.78
641.66
2104008220 Woodstove: fireplace inserts; EPA certified; non-catalytic
10.70
2.03
125.54
2104008230 Woodstove: fireplace inserts; EPA certified; catalytic
4.46
0.59
31.02
2104008310 Woodstove: freestanding, non-EPA certified
71.45
3.77
311.15
2104008320 Woodstove: freestanding, EPA certified, non-catalytic
5.18
0.99
60.83
2104008330 Woodstove: freestanding, EPA certified, catalytic
2.16
0.29
15.04
2104008400 Woodstove: pellet-fired, general
0.01
1.19
4.97
2104008610 Hydronic heater: outdoor
0.00
0.00
0.00
2104008700 Outdoor wood burning device, NEC
3.99
0.55
31.49
2104009000 Residential firelog
73.32 14.24
231.82
Total
509.70 57.72 2,959.91

Ozone season-day emissions would normally be calculated by dividing ozone season emissions
by heating degree days (i.e. the number of degrees per day that the daily average temperature is
below 65°F). However, data obtained from Arizona Energy Statistics (GOEP, 2013) indicated
that there was no heating degree days reported during the 2011 ozone season (July–September).
Thus, ozone season-day emissions from residential wood combustion are assumed to be zero.
Annual and season-day emissions within the eight-hour ozone nonattainment area were
calculated by multiplying county totals by the ratio of total population in the nonattainment area
to the total population in the county (101.14%). See Section 1.5.1 for a further discussion of the
population used.
Table 3.2–16 summarizes annual and season-day emissions from residential wood combustion
for both the county and the eight-hour ozone nonattainment area.
Table 3.2–16. Annual and season-day emissions from residential wood combustion.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
509.70
57.72
2,959.91
0.0
0.0
0.0
8-hr ozone NAA
515.53
58.38
2,993.75
0.0
0.0
0.0

3.3

Industrial processes

3.3.1

Chemical manufacturing

Emissions from area-source chemical manufacturing were calculated by the “scaling up” method
as described in EPA emissions inventory guidance (US EPA, 2001a). This method combines
detailed emissions data from a subset of sources, and county-level employment data from the US
Census Bureau (2012) to develop a per-employee emission factor that is then used to estimate
emissions from all sources in an industry category.
The most recent data from the US Census Bureau’s County Business Patterns (CBP),
representing 2010 employment, were used. Table 3.3–1 shows the NAICS codes and
employment data used to calculate emissions from chemical manufacturing.

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Table 3.3–1. County-level employment estimates for chemical manufacturing, by NAICS code.
NAICS
Estimated
code
NAICS description (and employment range)
employment
325
Chemical manufacturing
4,605
42469
Other chemical & allied products merchant wholesalers
1,484
424910
Farm supplies merchant wholesalers
904
33312
Construction machinery manufacturing (250–499)
375
Total:
7,368

Since there were no point sources in this category, an area-source employment estimate is used
to “scale up” emissions reported from those facilities surveyed in 2011.
Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the percentage industrial employment within the nonattainment area. See
Section 1.5.1 for a discussion of the employment data used.
Table 3.3–2 summarizes annual and season-day emissions from chemical manufacturing in both
Maricopa County and the eight-hour ozone nonattainment area.
Table 3.3–2. Annual and season-day emissions from area-source chemical manufacturing.
Geographic area
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Maricopa County
77.42
599.0
8-hr ozone NAA
77.09
596.5

3.3.2

Food and kindred products

3.3.2.1 Commercial cooking
Emissions from commercial cooking were estimated for five types of commercial cooking equipment using per capita emissions factors developed by EPA for the 2008 National Emissions
Inventory (NEI) (Pechan, 2012a). The per capita emission factors for each equipment type are
contained in Table 3.3–3. EPA created the emission factors listed in Table 3.3–3 by taking 2002
emissions in the NEI and dividing by the 2002 population to develop per capita emission factors.
The equipment types include: chain-driven charbroilers, under-fired charbroilers, deep-fat fryers,
flat griddles, and clamshell griddles.
Table 3.3–3.

Emission factors for commercial cooking equipment, by device type.
Emission Factor (lb/person)
Equipment type
VOC
CO
Chain-driven charbroilers
0.012056010
0.042446624
Under-fired charbroilers
0.041480307
0.135002176
Deep-fat fryers
0.012608151
0.000000000
Flat griddle fryers
0.005943281
0.012687330
Clamshell griddles
0.000231564
0.000000000

Annual commercial cooking emissions for Maricopa County were estimated by multiplying the
MAG-estimated county population (4,129,646) by the per capita emission factors for each type
of cooking equipment. See Section 1.5.1 for a discussion of the population data used.

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Commercial cooking is assumed to occur uniformly throughout the year, therefore, it was
assumed that 25% of annual activity occurs during the ozone season, and that activity occurs 7
days/week. Thus, season-day emissions were estimated by multiplying annual emissions by 25%
then dividing the result by 91 (7 days/wk × 13 wks/ozone season). The results are shown in
Table 3.3–4 below.
Table 3.3–4.

Annual and daily emissions from commercial cooking equipment in Maricopa County.
Annual Emissions
Season-day
(tons/yr)
emissions (lbs/day)
Equipment type
VOC
CO
VOC
CO
Chain-driven charbroilers
24.89
87.64
136.8
481.6
Under-fired charbroilers
85.65
278.76
470.6
1,531.6
—
Deep-fat fryers
26.03
143.0
0.0
Flat griddles
12.27
26.20
67.4
143.9
—
Clamshell griddles
0.48
2.6
0.0
Total:
149.33
392.60
820.5
2,157.1

Annual and season-day emissions for the eight-hour ozone nonattainment area were calculated
by multiplying the county totals by the ratio of total population in the nonattainment area to the
total population in the county (101.14%). See Section 1.5.1 for a discussion of the population
data used. Table 3.3–5 summarizes the annual and season-day emissions from commercial
cooking for the eight-hour ozone nonattainment area.
Table 3.3–5.

Annual and daily emissions from commercial cooking equipment in the eight-hour ozone NAA.
Annual emissions
Season-day
(tons/yr)
emissions (lbs/day)
Equipment type
VOC
CO
VOC
CO
Chain-driven charbroilers
25.18
88.64
138.3
487.1
Under-fired charbroilers
86.63
281.93
476.0
1,549.1
Deep-fat fryers
26.33
0.00
144.7
0.0
Flat griddles
12.41
26.50
68.2
145.6
Clamshell griddles
0.48
0.00
2.7
0.0
Total:
151.03
397.07
829.8
2,181.7

3.3.2.2 Bakeries
Emissions from area-source bakeries were calculated by the “scaling up” method as described in
EPA emissions inventory guidance (US EPA, 2001a). This method combines detailed emissions
data from a subset of sources and County-level employment data from the US Census Bureau
(2012) to develop a per-employee emission factor that is then used to estimate emissions from all
sources in an industry category.
The most recent data from the US Census Bureau’s County Business Patterns (CBP) for 2010
employment were used. (Where employment estimates were provided as a range of values, the
midpoint was used.) CBP estimates for Maricopa County employment in NAICS codes 311812
and 31183 (Commercial bakeries and Tortilla manufacturing) to total 2,491 persons. There were
no point sources in this category, thus all emissions from this source category are reported as
area sources. Ozone season-day emissions were calculated in the same method as annual
emissions, only using surveyed daily emissions instead of annual totals.

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Annual and season-day emissions for the eight-hour ozone nonattainment area were calculated
by multiplying the Maricopa County emission totals by the ratio of industrial employment in the
nonattainment area to industrial employment in the county. Results are summarized in Table
3.3–6. See section 1.5.1 for a discussion of the employment data used.
Table 3.3–6.

Annual and season-day emissions from area-source bakeries.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
78.18
547.8
8-hr ozone NAA
77.85
545.4

3.3.3

Secondary metal production

Annual emissions from secondary metal production facilities were derived from annual
emissions reports from permitted sources. As this category consists primarily of foundries, it
was assumed that there were no significant unpermitted sources within Maricopa County. Since
all facilities considered in this section are located within the eight-hour ozone nonattainment
area, total emission values for the county and the nonattainment area from secondary metal
production are equal. Annual and season-day emissions are shown in Table 3.3–7.
Table 3.3–7.

Annual and season-day emissions from area-source secondary metal production.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
41.01
15.02
98.36
306.4
107.9
697.4
8-hr ozone NAA
41.01
15.02
98.36
306.4
107.9
697.4

3.3.4

Rubber/plastics product manufacturing

Emissions from area-source rubber and plastic manufacturing facilities were calculated by the
“scaling up” method as described in EPA emissions inventory guidance (US EPA, 2001a). This
method combines detailed emissions data from a subset of sources, and county-level employment data from the US Census Bureau (2012) to develop a per-employee emission factor that is
then used to estimate emissions from all sources in an industry category. The most recent data
from the US Census Bureau’s County Business Patterns (CBP) for 2010 employment were used.
Where CBP employment estimates were presented as a range, the midpoint values were chosen
for these calculations. Table 3.3–8 shows the NAICS codes and employment data used to
calculate emissions from rubber and plastic manufacturing facilities.

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Table 3.3–8. County-level employment estimates for rubber and plastic product manufacturing, by NAICS
code.
NAICS
Estimated
code
NAICS description (and employment range)
employment
325211
Plastic material and resin manufacturing (0–19)
10
325991
Custom compounding of purchased resins (100–249)
175
326140
Polystyrene foam product manufacturing
164
326199
All other plastics product manufacturing
3,027
326212
Tire retreading
135
326299
All other rubber product manufacturing
92
332313
Plate work manufacturing
151
336413
Other aircraft parts and aux. equipment manufacturing
2,086
337920
Blind and shade manufacturing (250–499)
375
339115
Ophthalmic goods manufacturing
97
423830
Industrial machinery & equip. merchant wholesalers
2,634
423930
Recyclable material merchant wholesalers
1,268
441310
Automotive parts and accessories stores
3,392
441320
Tire dealers
2,095
Total:
15,701

Some facilities in this category are considered point sources, and have been addressed in Chapter
2. To avoid double-counting, employment at point sources is subtracted from total employment.
Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the ratio of industrial employment in the nonattainment area to industrial
employment in the county. See Section 1.5.1 for a discussion of the employment data used.
Table 3.3–9 summarizes annual and season-day emissions from area source rubber and plastic
products manufacturing in Maricopa County and the eight-hour ozone nonattainment area.
Table 3.3–9. Annual and season-day emissions from area-source rubber/plastic product manufacturing.
Geographic area
Annual VOC
Season-day VOC
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
1,766.75
14,171.0
8-hr ozone NAA
1,759.15
14,110.1

3.3.5

Electrical equipment manufacturing

Annual and season-day emissions from electric equipment manufacturing were derived from
annual emissions reports submitted by permitted sources. It was assumed that there were no
significant unpermitted sources within Maricopa County and all electrical equipment manufacturing permitted sources are reported here as area-sources.
As all facilities addressed in this source category are located within the eight-hour ozone
nonattainment area, emission totals for both areas are equal. Annual and season-day emissions
are shown in Table 3.3–10.

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Table 3.3–10. Annual and season-day emissions from area-source electric equipment manufacturing.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
122.80
23.47
2.98
746.2
135.8
16.4
8-hr ozone NAA
122.80
23.47
2.98
746.2
135.8
16.4

3.3.6

Industrial processes not elsewhere classified (NEC)

Annual area-source emissions from other industrial processes not elsewhere classified (NEC)
were derived primarily from annual emissions reports from permitted facilities. Other industrial
processes include a wide array of industrial activities that are often specific to the permitted
facility that reported the process. For this reason, it is assumed there are no significant emissions
from other industrial processes, other than those reported by permitted facilities on their annual
emissions reports. Ozone season-day emissions were calculated based on operating schedule
information provided by individual facilities through MCAQD’s annual emissions reporting
program. Emissions estimates for the eight-hour ozone nonattainment area were derived using
data on the location of the facilities that report other industrial processes.
In addition, emissions from ADEQ-permitted sources are included in this category due to a lack
of specificity regarding the nature of the reported emissions. As a conservative estimate, all of
these emissions were assumed to occur within the eight-hour ozone nonattainment area.
Estimates of total emissions from this source category are presented in Table 3.3–11.
Table 3.3–11. Annual and season-day emissions from industrial processes not elsewhere classified.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
48.51
224.92
91.84
325.6
1,245.8
525.2
8-hr ozone NAA
47.55
224.92
91.84
318.0
1,245.8
525.2

3.4

Solvent use

3.4.1

Surface coating

3.4.1.1 Architectural coatings
VOC emissions from architectural coatings were calculated using a per-capita emission factor
developed and used by EPA for the 2008 NEI (Pechan, 2012). Because Maricopa County Rule
335 contains an emission limit for coatings, the “controlled” VOC emission factor (2.41
lbs/person) was used.
Annual VOC emissions for architectural coating for both Maricopa County and the eight-hour
ozone nonattainment area were calculated by multiplying the per-capita emission factor by the
county and nonattainment area populations (4,129,646 and 4,176,870, respectively). See Section
1.5.1 for a discussion of the population data used.
Ozone season-day emissions were developed using default assumptions from EIIP (US EPA,
1995a). The seasonal factor for ozone season architectural coating activity was assumed to be 28
percent of annual activity. In addition, it was assumed that coating use may take place 7 days a
week during the ozone season (13 wks/season). Thus, season-day emissions were calculated by
multiplying annual VOC emissions by the seasonal factor and then dividing the results by 91
days per season. Table 3.4–1 presents the assumptions used as well as annual and season-day
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VOC emissions from architectural coatings for Maricopa County and the eight-hour ozone
nonattainment area.
Table 3.4–1. Annual and season-day emissions from architectural coating.
Annual VOC
% annual
Activity
emissions
activity in
level
Geographic area
Population
(tons/yr)
ozone season (days/wk)
Maricopa County
4,129,646
4,976.22
28 %
7
8-hr ozone NAA
4,176,870
5,033.13
28 %
7

Season-day
VOC emissions
(lbs/day)
30,622.9
30,973.1

3.4.1.2 Auto refinishing
VOC emissions from auto refinishing were calculated using the per employee emission factor
(89.0 lbs of VOC/employee) developed and reviewed by the Eastern Regional Technical
Advisory Committee (ERTAC) advisory panel for the 2008 NEI (Pechan, 2012).
The most recent employment estimates (for the year 2010) from the US Census Bureau’s County
Business Patterns (CBP) were used (US Census Bureau, 2012). Employment data is listed by the
North American Industry Classification System (NAICS) code(s). Table 3.4–2 shows the
NAICS codes and employment estimates used to calculate emissions from auto refinishing.
Table 3.4–2.
NAICS
code
81112
4411
4412
Total:

County-level employment estimates for auto refinishing, by NAICS code.
Estimated
NAICS description
employment
Auto body, paint, interior, & glass repair
4,236
Auto dealers
22,632
Other motor vehicle dealers
3,093
29,961

The seasonal activity factor for ozone season auto refinishing was assumed to be 25 percent of
annual activity. In addition, it was assumed that auto refinishing occurs evenly throughout the
year, 5 days/wk (US EPA, 2001a). Thus, ozone season-day emissions were calculated by
multiplying annual VOC emissions by the seasonal factor and then dividing the results by 65
days per season (5 days/wk × 13 wks/season).
Annual and season-day emissions for the eight-hour ozone nonattainment area were derived by
multiplying Maricopa County annual and season-day emissions by the ratio of industrial
employment in the nonattainment area to industrial employment in the county (99.57%). See
Section 1.5.1 for a discussion of the employment data used.
Table 3.4–3.

Annual and season-day emissions from auto refinishing.
Annual VOC
% annual
Activity
Season-day
emissions
activity in
level
VOC emissions
Geographic area
(tons/yr)
ozone season (days/wk)
(lbs/day)
Maricopa County
1,333.26
25 %
5
10,255.9
8-hr ozone NAA
1,327.53
25 %
5
10,211.8

3.4.1.3 Traffic markings
VOC emissions from traffic markings were calculated using the emissions factor developed by
EPA for the 2008 NEI (22.1 lbs of VOC/road mile) (Pechan, 2012). Annual VOC emissions for
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the county were calculated by multiplying the VOC emission factor by 2010 Maricopa County
public road and street mileage obtained from the Arizona Department of Transportation Highway
Performance Monitoring System (HPMS). ADOT reported 16,253 miles of public roads and
streets in Maricopa County in 2010, which was assumed to be representative of 2011 (M.
Catchpole, pers. commun., August 9, 2012).
Annual VOC emissions for the eight-hour ozone nonattainment area were estimated by
multiplying the 2010 Maricopa County public road and street mileage by the percentage of miles
within the nonattainment area (95.28%) and then multiplying by the VOC emission factor.
MAG estimated the percentage of miles within the eight-hour ozone nonattainment area as
compared to Maricopa County based on 2012 GIS highways and streets data (M. Poppen, pers.
commun., October 1, 2012). The 2012 mileage data was assumed to be representative of 2011.
Ozone season-day emissions during the ozone season for Maricopa County and the eight-hour
ozone nonattainment area were calculated assuming 33 percent of annual activity occurred
during the ozone season (13 wks per year) and a typical activity level of 5 days per week (US
EPA, 1997).
Table 3.4–4. Annual and season-day emissions from traffic markings.
Annual VOC
% annual
Activity
Season-day
emissions
activity in
level
VOC emissions
Geographic area
(tons/yr)
ozone season (days/wk)
(lbs/day)
Maricopa County
179.60
33 %
5
1,823.6
8-hr ozone NAA
171.12
33 %
5
1,737.5

3.4.1.4 Factory-finished wood
Emissions from factory-finished wood coating were calculated by the “scaling up” method as
described in EPA emissions inventory guidance (US EPA, 2001a). This method combines
detailed emissions data from a subset of sources, and county-level employment data from the US
Census Bureau (2012) to develop a per-employee emission factor that is then used to estimate
emissions from all sources in an industry category.
The most recent data from the US Census Bureau’s County Business Patterns (CBP) for 2011
employment were used. Where CBP employment estimates were presented as a range, the
midpoint value was chosen for these calculations. Table 3.4–5 shows the NAICS codes and
employment data used to calculate emissions from factory-finished wood surface coating.
Table 3.4–5. County-level employment estimates for factory-finished wood coating, by NAICS code.
NAICS
Estimated
code
NAICS description (and employment range)
employment
321911 Wood window & door manufacturing
299
321918 Other millwork
163
337212 Custom architectural woodwork & millwork manufacturing
368
337215 Showcase, partition, shelving & locker manufacturing
163
337920 Blind & shade manufacturing (250–499)
375
Total:
1,368

Since there were no point sources in this category, an area-source employment estimate was used
to “scale up” emissions reported from those facilities surveyed in 2011.
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Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the ratio of industrial employment in the nonattainment area to industrial
employment in the county (99.57%). See Section 1.5.1 for a discussion of the employment data
used. Table 3.4–6 summarizes annual and season-day VOC emissions from factory-finished
wood surface coating in both Maricopa County and the eight-hour ozone nonattainment area.
Table 3.4–6.

Annual and season-day emissions from area-source factory-finished wood surface coating.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
137.72
1,396.7
8-hr ozone NAA
137.12
1390.7

3.4.1.5 Wood furniture
Emissions from wood furniture surface coating were calculated by the “scaling up” method as
described in EPA emissions inventory guidance (US EPA, 2001a). This method combines
detailed emissions data from a subset of sources, and county-level employment data from the US
Census Bureau (2012) to develop a per-employee emission factor that is then used to estimate
emissions from all sources in an industry category.
The most recent data from the US Census Bureau’s County Business Patterns (CBP) for 2010
employment were used. Where CBP employment estimates were presented as a range, the
midpoint values was chosen for these calculations. Table 3.4–7 shows the NAICS codes and
employment data used to calculate emissions from wood furniture surface coating.
Table 3.4–7. County-level employment estimates for wood furniture surface coating, by NAICS code.
NAICS
Estimated
code
NAICS code description
employment
337110 Wood kitchen cabinet & countertop manufacturing
693
337121 Upholstered household furniture manufacturing
72
337122 Non-upholstered wood household furniture manufacturing
1,303
337129 Wood television, radio & sewing machine cabinet mfg. (0–19)
10
337211 Wood office furniture manufacturing (0–19)
10
811420 Re-upholstery & furniture repair
132
Total:
2,220

Some facilities in this category are considered point sources and have been addressed in Chapter
2. To avoid double-counting, employment at point sources was subtracted from total
employment.
Annual emissions were calculated by “scaling up” area-source emissions reported from those
facilities surveyed in 2011.
Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the ratio of industrial employment in the nonattainment area to industrial

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employment in the county (99.57%). See Section 1.5.1 for a discussion of the employment data
used.
Table 3.4–8 summarizes annual and season-day VOC emissions from wood furniture surface
coating in both Maricopa County and the eight-hour ozone nonattainment area.
Table 3.4–8. Annual and season-day emissions from area-source wood furniture surface coating.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
416.56
3,434.7
8-hr ozone NAA
414.77
3,419.9

3.4.1.6 Aircraft surface coating
Annual emissions from aircraft surface coating facilities were derived from annual emissions
reports from permitted sources. It is assumed that all aircraft surface coating facilities were
surveyed in 2011 based on a comparison of county-level employment data (US Census Bureau,
2012) and annual emissions report employment data. Ozone season-day emissions were
calculated based on operating schedule information provided in the facilities’ annual emissions
reports. Since all facilities considered in this section are located within the eight-hour ozone
nonattainment area, total emission values for the county and the nonattainment area are equal.
Table 3.4–9.

Annual and season-day VOC emissions from area-source aircraft surface coating.
Annual emissions
Season-day emissions
Geographic area
(tons/yr)
(lbs/day)
Maricopa County
65.84
473.1
8-hr ozone NAA
65.84
473.1

3.4.1.7 Miscellaneous surface coating
Area-source VOC emissions from miscellaneous surface coating were estimated by a “scaling
up” method as described in EPA emissions inventory guidance (US EPA, 2001a). This method
combines detailed emissions and employment data from Maricopa County permitted facilities to
develop a per-employee emission factor that is then used to estimate emissions from all sources
in an industry category
The typical “scale-up” methodology was revised slightly for this source category for a number of
reasons. First, miscellaneous surface coating activity occurs, at some level, across an exceptionally broad spectrum of industries, both industrial and commercial/institutional. Additionally,
annual emissions reports may be inconsistent in how activities are reported, and it is uncertain if
all relevant activities are categorized as “miscellaneous surface coating” vs. some other category
(e.g., manufacturing). Estimating total emissions from miscellaneous surface coating based on
county employment by NAICS code (for which employment data are often presented only as a
broad range), or all industrial employment (including industries which have little or no miscellaneous surface coating activities) would therefore be misleading and lead to an over-estimate of
area-source emissions from this source category. Instead, the list of SIC codes used by facilities
that reported miscellaneous surface coating activities was conservatively assumed to represent
the “universe” of businesses that could possibly have significant miscellaneous surface coating
activity. To avoid double-counting, employment at point sources was subtracted from total
employment within these SIC categories.
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Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the ratio of industrial employment in the nonattainment area to industrial
employment in the county (99.57%). See Section 1.5.1 for a discussion of the employment data
used.
Table 3.4–10 summarizes annual and season-day VOC emissions from area-source miscellaneous surface coating in both Maricopa County and the eight-hour ozone nonattainment area.
Table 3.4–10. Annual and season-day emissions from miscellaneous surface coating.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
316.38
2,450.5
8-hr ozone NAA
315.02
2,440.0

3.4.2

Degreasing

Area-source VOC emissions from degreasing were estimated by a “scaling up” method as
described in EPA emissions inventory guidance (US EPA, 2001a). This method combines
detailed emissions and employment data from Maricopa County permitted facilities to develop a
per-employee emission factor that is then used to estimate emissions from all sources in an
industry category.
The typical “scale-up” methodology was revised slightly for this source category for a number of
reasons. First, degreasing activity occurs at some level across a wide spectrum of industries,
both industrial and commercial/ institutional. Additionally, annual emissions reports may be
inconsistent in how activities are reported and it is uncertain if all relevant activities are categorized as “degreasing” vs. some other category (e.g., manufacturing). Estimating total emissions
from degreasing based on county employment by NAICS code (for which employment data are
often presented only as a broad range), or all industrial employment (including industries which
have little or no degreasing activities) would therefore be misleading and lead to an overestimate of area-source emissions from this source category.
Instead, the list of SIC codes used by businesses that reported degreasing activities was conservatively assumed to represent the “universe” of businesses that could possibly have significant
degreasing activity. To avoid double-counting, employment at point sources was subtracted
from total employment within these SIC.
Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the percentage of industrial employment within the nonattainment area. (See
Section 1.5.1 for a discussion of the employment data used.)
Table 3.4–11 summarizes annual and season-day emissions from area-source degreasing in both
Maricopa County and the eight-hour ozone nonattainment area.
Table 3.4–11. Annual and season-day VOC emissions from area-source degreasing.
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Geographic area
Maricopa County
8-hr ozone NAA

3.4.3

Annual emissions
(tons/yr)
217.55
216.62

Season-day emissions
(lbs/day)
1,451.1
1,445.1

Dry cleaning

Dry cleaning facilities are identified as one of two types: those that use perchloroethylene and
those that use a petroleum solvent (140 or Stoddard solvent) or other VOC-based solvent.
Perchloroethylene is a synthetic solvent that is not considered photochemically reactive and
therefore is not included in this inventory. Data from the 2008 periodic emissions inventory
were grown to 2011 based on total population.
Based on operating schedule information provided in the facilities’ historic annual emissions
reports, it is assumed that operations occur evenly throughout the year, 5 days per week, thus
season-day emissions were derived by dividing the annual total emissions by 260 (= 5 days/ wk
× 52 weeks/yr).
Annual and season-day emissions estimates for the eight-hour ozone nonattainment area were
calculated by multiplying county-level emissions by the ratio of Maricopa County population to
nonattainment area population. See Section 1.5.1 for a discussion of the population data used.
Table 3.4–12 summarizes the annual and season-day VOC emissions from dry cleaning.
Table 3.4–12. Annual and season-day emissions from dry cleaning.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
23.15
178.1
8-hr ozone NAA
23.42
180.1

3.4.4

Graphic arts

Emissions from graphic arts were calculated by the “scaling up” method as described in EPA
emissions inventory guidance (US EPA, 2001a). This method combines detailed emissions data
from a subset of sources, and county-level employment data from the US Census Bureau (2012)
to develop a per-employee emission factor that is then used to estimate emissions from all
sources in an industry category.
The most recent data from the US Census Bureau’s County Business Patterns (CBP) for 2010
employment were used. Table 3.4–13 shows the NAICS codes and employment data used to
calculate emissions from graphic arts.
Table 3.4–13.
NAICS
code
323
5111
Total:

County-level employment estimates for graphic arts, by NAICS code.
Estimated
NAICS description
employment
Printing & related support activities
3,892
Newspaper, periodical, book & database publishers
3,800
7,692

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There were no point sources in this category. An area-source employment estimate was used to
“scale up” emissions reported from those facilities surveyed in 2011.
Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the ratio of industrial employment in the nonattainment area to industrial
employment in the county (99.57%). See Section 1.5.1 for a discussion of the employment data
used.
Table 3.4–14 summarizes annual and season-day emissions from graphic arts in both Maricopa
County and the eight-hour ozone nonattainment area.
Table 3.4–14. Annual and season-day VOC emissions from area-source graphic arts sources.
Annual emissions
Season-day emissions
Geographic area
(tons/yr)
(lbs/day)
Maricopa County
290.98
2,225.7
8-hr ozone NAA
289.73
2,216.1

3.4.5

Miscellaneous industrial solvent use

Area-source VOC emissions from miscellaneous industrial solvent use were estimated by a
“scaling up” method as described in EPA emissions inventory guidance (US EPA, 2001a). This
method combines detailed emissions and employment data from Maricopa County permitted
facilities to develop a per-employee emission factor that is then used to estimate emissions from
all sources in an industry category.
The typical “scale-up” methodology was revised slightly for this source category for a number of
reasons. First, miscellaneous industrial solvent use occurs at some level across a wide spectrum
of industries. Additionally, annual emissions reports may be inconsistent in how activities are
reported, and it is uncertain if all relevant activities are categorized as “miscellaneous industrial
solvent use” vs. some other category (e.g., manufacturing). Estimating total emissions from
miscellaneous industrial solvent use based on county employment by NAICS code (for which
employment data are often presented only as a broad range), or all industrial employment (including industries which have little or no solvent use activities) would therefore be misleading and
lead to an overestimate of area-source emissions from this source category.
Instead, the list of SIC codes used by businesses that reported miscellaneous industrial solvent
use activities was conservatively assumed to represent the “universe” of businesses that could
possibly have significant miscellaneous industrial solvent use activity. To avoid doublecounting, employment at point sources (addressed in Chapter 2) was subtracted from total
employment within these SICs.
Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the ratio of industrial employment in the nonattainment area to industrial
employment in the county. See Section 1.5.1 for a discussion of the employment data used.

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Table 3.4–15 summarizes annual and season-day VOC emissions from area-source miscellaneous industrial solvent use in both Maricopa County and the eight-hour ozone nonattainment
area.
Table 3.4–15. Annual and season-day emissions from area-source miscellaneous industrial solvent use.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
721.85
5,126.6
8-hr ozone NAA
718.75
5,104.6

3.4.6

Consumer and commercial products

Consumer and commercial products emissions include emissions from the following seven
product categories: personal care products, household products, automotive aftermarket products,
adhesives and sealants, FIFRA-regulated products, coatings and related products, and
miscellaneous products.
Annual area-source VOC emissions from consumer and commercial products were calculated by
multiplying per-capita emission factors recommended by the Eastern Regional Technical
Advisory Committee (Pechan, 2012c) by the population estimates for Maricopa County and the
eight-hour ozone nonattainment area (see Section 1.5.1 for a discussion of population data).
Ozone season-day emissions for the county and the eight-hour ozone nonattainment area were
calculated by dividing annual emissions by 365 days as activity is assumed to occur uniformly
throughout the year according to EIIP guidance (US EPA, 2001a).
Table 3.4–16. Annual and season-day emissions from consumer and commercial products.
Maricopa County
8-hr ozone NAA
Emission Annual VOC
Season-day Annual VOC
Season-day
emissions VOC emissions emissions VOC emissions
factor
Product category
(lbs/person)
(tons/yr)
(lbs/day)
(tons/yr)
(lbs/day)
Personal care
1.9
3,923.16
21,496.8
3,968.03
21,742.6
Household
1.8
3,716.68
20,365.4
3,759.18
20,598.3
Automotive aftermarket
1.36
2,808.16
15,387.2
2,840.27
15,563.1
Coatings and related
0.95
1,961.58
10,748.4
1,984.01
10,871.3
Adhesives/sealants
0.57
1,176.95
6,449.0
1,190.41
6,522.8
FIFRA-regulated
1.78
3,675.38
20,139.1
3,717.41
20,369.4
Miscellaneous
0.07
144.54
792.0
146.19
801.0
Total:
8.43
17,406.46
95,377.9
17,605.51
96,468.5

3.4.7

Asphalt application

Asphalt is applied to pave, seal, and repair surfaces such as roads, parking lots, drives, walkways, roofs, and airport runways. In the past, MCAQD estimated emissions from asphalt
application by allocating state-level asphalt usage data obtained from the Asphalt Institute to
Maricopa County by the use of two surrogates: vehicle miles traveled (VMT) and population.
However, the Asphalt Institute no longer compiles asphalt usage data by state. Therefore, 2011
emissions from asphalt application were calculated by growing 2008 asphalt emissions to 2011
based on VMT and population.
Asphalt emissions were grown for three categories of asphalt application: roofing, cutback and
emulsified. A population-based growth factor was used to grow 2008 roofing asphalt emissions
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to 2011, while a VMT-based growth factor was used to grow 2008 cutback and emulsified
asphalt emissions to 2011.
Table 3.4–17 shows 2008 and 2011 VMT and population for Maricopa County and the eighthour ozone nonattainment area.
Table 3.4–17. 2008 and 2011 population and VMT, by geographic area.
Total population
Maricopa County
8-hr ozone NAA
2008
4,279,760
4,322,710
2011
4,129,646
4,176,870
Change, 2008–2011
–3.51%
–3.37%
Vehicle miles traveled (mi/day)
2008
2011
Change, 2008–2011

91,257,000
88,885,000
–2.60%

88,713,000
83,874,000
–5.45%

Table 3.4–18 details county VOC emissions from asphalt application by asphalt type and the
growth factors used to estimate 2011 emissions.
Table 3.4–18. Emissions from asphalt use, by type, in Maricopa County.
2008
2011
Annual VOC
Season-day
2008:2011 Annual VOC
Season-day
emissions
VOC emissions
growth
emissions
VOC emissions
Asphalt type
(tons/yr)
(lbs/day)
factor
(tons/yr)
(lbs/day)
Cutback
858.15
4,689.3
–2.60%
835.84
4,567.4
Emulsified
889.17
4,858.9
–2.60%
866.06
4,732.6
Roofing
3.15
24.3
–3.51%
3.04
23.4
Total:
1,750.47
9,572.5
1,704.94
9,323.5

Annual and season-day emissions for the eight-hour ozone nonattainment area were also grown
from 2008 by multiplying the 2008 nonattainment area emission by a 2008:2011 growth factor
for VMT within the nonattainment area (for cutback and emulsified asphalt) and population
within the nonattainment area (for roofing asphalt). Table 3.4–19 details nonattainment area
asphalt emissions by type and the factors used to grow 2008 nonattainment area emissions to
2011.
Table 3.4–19.

Asphalt type
Cutback
Emulsified
Roofing
Total:

Emissions from asphalt use, by type, in the eight-hour ozone NAA.
2008
2011
Annual VOC
Season-day
2008:2011 Annual VOC
Season-day
emissions
VOC emissions
growth
emissions
VOC emissions
(tons/yr)
(lbs/day)
factor
(tons/yr)
(lbs/day)
834.22
4,558.6
–5.45%
788.72
4,309.9
864.39
4,723.4
–5.45%
817.24
4,465.8
3.19
24.5
–3.37%
3.08
23.7
1,701.80
9,306.5
1,609.04
8,799.4

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3.4.8

Agricultural pesticides

Annual emissions from agricultural pesticide usage within Maricopa County were obtained from
the US Environmental Protection Agency’s 2011 National Emissions Inventory data and
documentation (US EPA, 2012c). US EPA estimated 362.93 tons of VOCs were emitted from
agricultural pesticide usage in Maricopa County in 2011.
Agricultural pesticide data for 2011 were obtained from the Arizona Department of Agriculture’s
1080 Investigative Search website (ADA, 2013). This data was used to determine ozone season
emissions from agricultural pesticide applications. The data included quantities of pesticides
applied and the date of pesticide application. Quantities reported in gallons were converted to
pounds assuming 8.33 lbs per gallon.
The data showed approximately 2,086,356 lbs of agricultural pesticides were applied in
Maricopa County in 2011. Based on the date of pesticide application, approximately, 36.4%
(759,349 lbs.) of agricultural pesticides were applied during the ozone season. Ozone season-day
emissions for Maricopa County were calculated by multiplying annual emissions (362.93 tons)
by 36.4% and then dividing the result by 91 days/season (7 days/wk × 13 wks/ozone season).
Annual and season-day emissions for the eight-hour ozone nonattainment area were calculated
by multiplying county totals by the ratio of agricultural land located in the nonattainment area to
the agricultural land in the county (58.46%). See Section 1.5.1 for a further discussion of the
land use data used.
Table 3.4–20. Annual and season-day emissions from agricultural pesticide application.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
362.93
2,903.4
8-hr ozone NAA
212.18
1,697.5

3.5

Storage and transport

3.5.1

Portable fuel containers

Annual Maricopa County emissions from area-source portable fuel containers (PFCs) were
obtained from the US Environmental Protection Agency’s 2011 National Emissions Inventory
(US EPA, 2012c). These calculations identify a total of seven mechanisms by which emissions
can be generated from portable fuel containers:
•
•
•

Emissions associated with filling the gas can at the gas pump:
– Displacement of the vapor within the can, and
– Spillage of gasoline while filling the can
Emissions associated with transporting the gas can:
– Spillage of gasoline during transport
Emissions (adjusted for changes in ambient temperature) associated with storage of the
gasoline in the PFCs:
– Emissions due to evaporation (i.e., diurnal emissions), and
– Emissions due to permeation.

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Two additional sources of emissions associated with using PFCs to refuel pieces of nonroad
equipment are considered by the NONROAD model (described in Chapter 4) and thus not
addressed here:
– Displacement of the vapor within nonroad equipment, and
– Spillage of gasoline while filling nonroad equipment.
Ozone season-day emissions for the county were calculated by dividing annual emissions by 365
days as activity is assumed to occur uniformly throughout the year.
Annual and ozone season-day emissions for the eight-hour ozone nonattainment area were
calculated by multiplying the county totals by the ratio of total population in the nonattainment
area to total population in the county (101.14%). See Section 1.5.1 for a discussion of the
employment data used.
Table 3.5–1 summarizes annual and season-day VOC emissions from portable fuel containers in
both Maricopa County and the eight-hour ozone nonattainment area.
Table 3.5–1.

Annual and season-day emissions from portable fuel containers (PFCs).
Maricopa County
Eight-hour ozone NAA
Season-day
Season-day
Annual VOC
VOC
Annual VOC
VOC
emissions
emissions
emissions
emissions
Emissions source
(tons/yr)
(lbs/day)
(tons/yr)
(lbs/day)
Permeation: Residential
887.25
4,875.0
897.40
4,930.8
Evaporation/diurnal: Residential
1,732.33
9,518.3
1,752.15
9,627.2
Spillage during transport: Residential
226.04
1,242.0
228.63
1,256.2
Vapor displacement in PFCs: Residential
82.87
455.3
83.82
460.5
Spillage at pump: Residential
6.60
36.2
6.67
36.7
Permeation: Commercial
28.34
155.7
28.66
157.5
Evaporation/diurnal: Commercial
55.33
304.0
55.96
307.5
Spillage during transport: Commercial
308.36
1,694.3
311.89
1,713.7
Vapor displacement in PFCs: Commercial
159.71
877.5
161.54
887.6
Spillage at pump: Commercial
12.69
69.7
12.84
70.5
Displacement during refueling of nonroad equipment*
Spillage during refueling of nonroad equipment*
Total:
3,499.52
19,228.2
3,539.56
19,448.1

*These activities are included in the NONROAD model emissions calculations, described in Chapter 4.

3.5.2

Bulk plants

Emissions from this source category were calculated from annual emissions inventory reports
from all bulk plants located within the county. It is assumed that there are no unpermitted bulk
plants in Maricopa County. To avoid double-counting, emissions from bulk terminals are treated
as point sources (totaling 105.94 tons/yr) and thus are reported in Chapter 2. Ozone season-day
emissions were calculated based on operating schedule information provided in the facilities
annual emissions reports. Since all facilities considered in this section are located within the
eight-hour ozone nonattainment area, total emission values for the county and the eight-hour
ozone nonattainment area are equal.

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Table 3.5–2.

Annual and season-day emissions from bulk plants.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
120.91
659.3
8-hr ozone NAA
120.91
659.3

3.5.3

Gasoline stations (Stage I)

Stage I gasoline distribution emissions occur when gasoline vapors are displaced from storage
tanks during unloading of gasoline from tank trucks at service stations.
Following EPA methodologies (US EPA, 2001b), annual VOC emissions from gasoline service
station unloading were calculated by multiplying gasoline sales (1,553,993 Mgals) (B. Steen,
pers. commun., September 13, 2012) by emission factors provided in AP-42 (US EPA, 1995b)
for each filling technology. Based on annual emissions reports from 2002, 98.5% of gasoline is
delivered using balanced submerged filling with the remaining 1.5% delivered by submerged
filling. Table 3.5–3 below shows the emission factors used.
Table 3.5–3.

Emission factors for gasoline service stations (Stage I).
VOC emission factors
Emission source
(lbs of VOC/Mgal throughput)
Submerged filling
7.3
Balanced submerged filling
0.3

Ozone season-day emissions were calculated by multiplying ozone-season (July–September)
gasoline sales (376,616 Mgal) by the emission factors listed above, then dividing by 78 days (13
weeks in the ozone season × 6 days/week).
As a conservative assumption, annual and season-day emissions for the eight-hour ozone
nonattainment area are assumed to be equal to Maricopa County emissions.
Table 3.5–4. Annual and season-day emissions from gasoline service stations (Stage I).
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County and 8-hr ozone NAA:
–Submerged filling
85.08
528.7
–Balanced submerged filling
229.60
1,426.8
Total:
314.68
1,955.5

3.5.4

Gasoline stations (Stage II)

Stage II gasoline service station emissions are the refueling emissions that occur during the
transfer of gasoline from storage tanks at service stations to vehicle fuel tanks (i.e. vehicle
refueling and spillage emissions). The MOVES2010b model that was used to calculate onroad
emissions captures stage II emissions. Therefore, these emissions are addressed in Chapter 5 as
part of the onroad mobile sources emissions and are no longer reported as an area source.

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3.5.5

Gasoline stations underground tanks, breathing/emptying

Breathing losses are the expulsion of vapor from a tank vapor space that has expanded or
contracted because of daily changes in temperature and barometric pressure; these emissions
occur in the absence of any liquid level change in the tank. Emptying losses occur when the air
that is drawn into the tank during liquid removal saturates with hydrocarbon vapor and expands,
thus exceeding the fixed capacity of the vapor space and overflowing through the pressure
vacuum valve.
Following EPA methodologies (US EPA, 2001b), annual VOC emissions from storage tank
breathing and emptying were calculated by multiplying annual gasoline throughput (1,553,993
Mgal [B. Steen, ADOT, pers. commun., September 13, 2012]) by the emission factor for
underground tank breathing and emptying (1.0 lb/Mgal) found in AP-42 Table 5.2–7 (US EPA,
1995b).
Ozone season-day VOC emissions were calculated using the same formula as above, using only
the gasoline distributed during the ozone season (July–September, 376,616 Mgal) and dividing
by the 91 days (13 weeks in the ozone season × 7 days per week that gasoline storage occurs).
As a conservative estimate, all activity was assumed to occur within the nonattainment area; thus
annual and season-day emissions estimates for the nonattainment area are equal to county totals.
Table 3.5–5. Annual and season-day emissions from gasoline service stations underground tank, breathing
and emptying.
Geographic area
Annual VOC
Season-day VOC
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
777.00
4,138.6
8-hr ozone NAA
777.00
4,138.6

3.5.6

Airports: Aviation gasoline

Aviation gasoline is used by small reciprocating, piston-engine aircraft in civil aviation.
Commercial and military aviation rarely use aviation gasoline. Aviation gasoline is shipped to
airports and is filled into bulk terminals, and then into tanker trucks. The displacement vapors
during the transfer of gasoline from tank trucks to storage tanks, and vice versa falls under the
definition of stage I. Stage II involves the transfer of fuel from the tanker trucks into general
aviation aircraft.
Annual emissions from aviation gasoline Stage I and Stage II were obtained from the US
Environmental Protection Agency’s 2011 National Emissions Inventory (US EPA, 2012c).
Table 3.5–6 shows US EPA 2011 estimated VOC emissions from aviation gasoline for Maricopa
County.
Table 3.5–6.

Annual emissions from aviation gasoline for Maricopa County.
VOC Emissions (tons/yr)
Aviation Gasoline Stage I
347.57
Aviation Gasoline Stage II
18.04

Due to lack of data, daily emissions were assumed to be equal throughout the year and were
calculated by dividing annual emissions by 365 days/year.

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Annual and season-day emission in the eight-hour ozone nonattainment area were calculated by
multiplying county totals by the percentage of general aviation operations that occurred within
the nonattainment area in 2011 (99.1%) (See Table 4.11–1 for general aviation aircraft
operational data used).
Table 3.5–7.

Annual and season-day emissions from aviation gasoline.
Maricopa County
8-hr ozone NAA
Annual VOC
Season-day
Annual VOC
Season-day
emissions
VOC emissions
emissions
VOC emissions
(tons/yr)
(lbs/day)
(tons/yr)
(lbs/day
Aviation Gasoline Stage I
347.57
1904.5
344.41
1,887.2
Aviation Gasoline Stage II
18.04
98.8
17.87
97.9

3.5.7

Gasoline tank trucks in transit

Emissions from tank trucks in transit occur when gasoline vapor evaporates from (1) loaded tank
trucks during transportation of gasoline from bulk terminals/plants to service stations, and (2)
empty tank trucks returning from service stations to bulk terminals/plants. Annual VOC
emissions from gasoline trucks in transit were calculated by multiplying county-level tank truck
gasoline throughput by a 0.06 lb of VOC per 1,000 gallon emission factor (Pechan, 2012b).
Gasoline consumption for Maricopa County was determined from gasoline tax sales reports
obtained from the Arizona Department of Transportation for 2011 (ADOT, 2012). Gasoline
throughput for tank trucks was computed by multiplying the Maricopa County gasoline sales
(1,553,992,539 gallons) by a transportation adjustment factor of 1.09 to account for gasoline that
is transported more than once in a given area (i.e., transported from bulk terminals to bulk plant
and then from bulk plant to service station) (Pechan, 2012b).
Ozone season gasoline throughput for tank trucks was estimated by multiplying the gallons of
gasoline sold (376,615,906 gallons) during the ozone-season (July-September) in Maricopa
County by the 1.09 transportation adjustment factor noted above to account for gasoline that is
transported more than once. Ozone season-day VOC emissions were calculated by multiplying
the estimated ozone season gasoline throughput for tank trucks by the 0.06 lb of VOC per 1,000
gallon emission factor noted above and then dividing by 78 days (13 weeks × 6 days/wk).
As a conservative estimate, all activity was assumed to occur within the nonattainment area; thus
annual and season-day emissions estimates for the nonattainment area are equal to county totals.
Table 3.5–8. Annual and season-day emissions from gasoline trucks in transit.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
50.82
315.8
8-hr ozone NAA
50.82
315.8

3.5.8 Pipeline gasoline
Pipeline emissions result from the valves and pumps found at pipeline pumping stations and
from the valves, pumps, and storage tanks at pipeline breakout stations.

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Annual VOC emissions from gasoline pipelines were derived based on the ratio of pipeline
emissions to total emissions for bulk terminals, bulk plants, and pipelines as reported in the US
Environmental Protection Agency’s 2011 National Emissions Inventory (NEI) (US EPA, 2012c).
The NEI reported that 2011 pipeline emissions for Maricopa County were 12.53% of total
emissions from bulk terminals, bulk plants, and pipelines.
Thus, annual pipeline emissions for the county were derived by multiplying annual emissions
reported in bulk plant emissions reports by 12.53%.
Ozone season-day emissions were calculated in the same manner, by multiplying season-day
emissions (derived from operating schedule information provided in the facilities annual
emissions reports) by 12.53%.
Since all facilities considered in this section are located within the eight-hour ozone nonattainment area, emissions for the county and the eight-hour ozone nonattainment area are equal.
Table 3.5–9.

Annual and season-day emissions from pipeline gasoline.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
17.32
94.5
8-hr ozone NAA
17.32
94.5

3.5.9

Volatile organic liquid (VOL) storage and transport

Emissions from this source category were calculated by summing reported VOC emissions from
volatile organic liquid storage/transfer emissions inventory reports. It is assumed that there are
no significant unpermitted volatile organic liquid storage/transfer facilities in Maricopa County.
To avoid double-counting, emissions from those facilities treated as point sources (totaling 28.8
tons/yr) are addressed in Chapter 2. Ozone season-day emissions were calculated based on
operating schedule information provided in the facilities annual emissions reports.
Table 3.5–10. Annual and season-day emissions from area-source volatile organic liquid storage/transport.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
30.54
182.7
8-hr ozone NAA
28.80
169.3

3.6

Waste treatment and disposal

3.6.1

On-site incineration

This section includes emissions from on-site industrial incinerators, primarily burn-off ovens
used to reclaim electric wire or other materials. Emissions from human and animal crematories
are addressed in Section 3.7.5. There were no incinerators at residential (e.g., apartment
complexes) or commercial/institutional facilities (e.g., hospitals, service establishments) in
operation during 2011.
Emissions from on-site incineration were determined from annual emissions inventory reports.
It is assumed that all incinerator emissions are accounted for, since all permitted incinerators

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received surveys in 2011. All surveyed facilities are located within the eight-hour ozone
nonattainment area, thus total emissions for the county and nonattainment area are equal.
Table 3.6–1.

Annual and season-day emissions from on-site incineration.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
0.17
3.31
0.79
1.1
21.4
5.3
8-hr ozone NAA
0.17
3.31
0.79
1.1
21.4
5.3

3.6.2

Open burning: Land clearing debris

Emissions from controlled open burning are regulated by Maricopa County Air Pollution Control
Regulations Rule 314 (Open Outdoor Fires and Indoor Fireplaces at Commercial and Institutional Establishments), which requires a burn permit for open burning in Maricopa County. Burn
permits are issued primarily for purposes of agricultural ditchbank and fence row burning,
tumbleweed burning, land clearance, and firefighting training. Maricopa County’s burn permit
data base was used to identify all burn permits issued in 2011. A total of 57 open burn permits
were issued during the year. The quantity and reported activity for the open burn permits (except
for firefighting burn permits) are shown in Table 3.6–2.
Table 3.6–2.

Maricopa County burn permit activity.
Number of
Category
permits
Unit of measure
Annual ditchbank & fence
row
41
Linear Feet
Land clearance
4
Acres
Fire hazard
1
Acres

Total reported
activity
1,967,795
14.14
2

Emissions from land clearance and fire hazard open burning are addressed in this section
whereas ditchbank and fence row burning are addressed in Section 3.7.1.
The activity data for land clearance and fire hazard were converted to tons of material burned
using fuel loading factor for “weeds, unspecified” from AP-42 (US EPA, 1992). The emission
and loading factors used are shown in Table 3.6–3.
Table 3.6–3.

Emission and fuel loading factors for open burning.
Emission factors
(lbs/ton burned)
Fuel loading factors
(tons/acre)
Category
VOC
NOx
CO
Weeds, unspecified
9
4
85
3.2

Activity data were multiplied by the 3.2 tons/acre fuel loading factor to derive the total mass of
material burned. Annual emissions were then calculated by multiplying the amount of material
burned by the AP-42 emission factors for “weeds, unspecified” (shown in Table 3.6–3). Based
on an analysis of complaints received in 2011 reporting suspected open or illegal outside
burning, emissions estimates were multiplied by a factor of 2.87 to account for unpermitted
illegal outdoor burning.
It was assumed that land clearance and fire hazard open burning occur 5 days per week (most
burn permits are issued for weekdays but permits may be issued on weekends depending on
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circumstances) and evenly during the ozone season months (July–September). Thus, season-day
emissions for Maricopa County were derived by dividing annual emissions (lbs/year) by 65 (5
days/wk × 13 wks/yr).
Annual and season-day emissions for the nonattainment area were calculated by multiplying the
percentage of vacant land use located in the eight-hour ozone nonattainment area (44.55%) by
the Maricopa County emissions estimates. See Section 1.5.2 for a discussion of the land use data
used.
Table 3.6–4 summarizes 2011 annual and season-day emissions for the Maricopa County and the
eight-hour ozone nonattainment area from land clearance and fire hazard open burning activity.
Table 3.6–4.

Annual and season-day emissions from land clearance and fire hazard open burning.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
NOx
NOx
Geographic area
VOC
CO
VOC
CO
Maricopa County
0.67
0.30
6.30
20.5
9.1
193.8
8-hr ozone NAA
0.30
0.14
2.81
9.1
4.1
86.4

3.6.3

Landfills

Emissions from municipal solid waste (MSW) landfills come from uncontrolled landfill gas
emissions as well as from combustion from control measures, such as a flare. Total emissions
were calculated from annual emissions inventory reports from all landfills located within the
county. Northwest Regional Landfill was considered a point sources; all other MSW landfills
are reportered here as area source landfills.
Since there are no landfills located outside the eight-hour ozone nonattainment area, total
emission values for the county and the eight-hour ozone nonattainment area are equal.
Annual and season-day emissions are shown in Table 3.6–5.
Table 3.6–5.

Annual and season-day emissions from landfills.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
36.59
30.40
108.55
200.7
167.4
596.4
8-hr ozone NAA
36.59
30.40
108.55
200.7
167.4
596.4

3.6.4

Publicly owned treatment works

Annual emissions from publicly owned treatment works (POTW) in Maricopa County were
obtained from the US Environmental Protection Agency’s 2011 National Emissions Inventory
(US EPA, 2012c). EPA estimated 75.02 tons of VOC were emitted from POTWs in Maricopa
County in 2011. There were no point sources in this category that needed to be subtracted.
Ozone season-day emissions were calculated by multiplying annual emissions by a 35% season
adjustment factor and then dividing by 91 days per season (US EPA, 2001a).
Annual and season-day emissions for the eight-hour ozone nonattainment area were calculated
by multiplying the Maricopa County emission totals by the percentage of total population in the
nonattainment area to the total population in the county (101.14%). See Section 1.5.1 for a
discussion of the population data used.
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Table 3.6–6.

VOC emissions from publicly owned treatment works.
Annual emissions
Season-day emissions
Geographic area
(tons/yr)
(lbs/day)
Maricopa County
75.02
577.1
8-hr ozone NAA
75.88
583.7

3.6.5

Leaking underground storage tanks

Leaking underground storage tanks (LUST) are typically not considered a quantifiable source of
air emissions until excavation and remediation efforts begin. The majority of air emissions from
LUST site remediation occur during initial site action, which is typically tank removal.
Emissions from soil occur as the tank is being removed and when soil is deposited on the ground
before treatment/disposal occurs (US EPA, 2001c).
A default emission rate of 28 lbs/day per remediation event was used to estimate VOC emissions
from LUST remediation (US EPA, 2001c). Data obtained from the Arizona Department of
Environmental Quality Leaking Underground Storage Tank Section indicated that 15 LUST
opened in Maricopa County in 2011 (N. Giuntoli, pers. commun., March 19, 2013). Data were
not available on the number or date of remediation that occurred in 2011; therefore, it was
conservatively assumed that all 15 LUST were remediated in 2011 during the ozone season. It
was also assumed that an initial site action (tank and soil removal) for an average LUST
remediation lasts five days.
Ozone season-day emissions were calculated by dividing annual values by 65 (5 days/wk × 13
wks/ozone season). To be conservative, it was assumed that all gasoline retail outlets were
located within the ozone nonattainment area and therefore, annual and season-day emissions for
the eight-hour ozone nonattainment area were assumed to be equal to the Maricopa County
totals.
Table 3.6–7.

Annual and season-day emissions from remediation of leaking underground storage tanks.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
1.05
32.3
8-hr ozone NAA
1.05
32.3

3.6.6

Other waste

Annual area-source emissions from other industrial waste disposal were derived from annual
emissions reports from permitted facilities. Other industrial waste disposal processes include a
wide array of industrial activities that are often specific to the permitted facility that reported the
process. For this reason, it is assumed there are no significant emissions from this category,
other than those reported by permitted facilities on their annual emissions reports. Ozone
season-day emissions were calculated based on operating schedule information provided by the
facilities in their annual emissions report.
All surveyed facilities for this area source category are located inside the eight-hour ozone
nonattainment area; therefore emissions for Maricopa County and the eight-hour ozone
nonattainment area are equal. Table 3.6–8 summarizes annual and season-day emissions for
Maricopa County and the nonattainment area.
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Table 3.6–8.

Annual and season-day emissions from other waste.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
2.12
22.19
77.93
10.9
122.8
431.4
8-hr ozone NAA
2.12
22.19
77.93
10.9
122.8
431.4

3.7

Miscellaneous area sources

3.7.1

Agricultural field burning

Agricultural ditchbank and fence row burning are regulated by Maricopa County Air Pollution
Control Regulations Rule 314 (Open Outdoor Fires and Indoor Fireplaces at Commercial and
Institutional Establishments) which requires a burn permit for open burning activity in Maricopa
County. A total of 41 permits were issued during the year for ditchbank and fence row burning.
The permit data indicated that a total of 1,967,795 linear feet of ditchbank and fence rows were
burned in 2011.
To calculate the amount of material burned, MCAQD assumed that ditchbanks and fence rows in
Maricopa County average 7 feet in width and are burned twice per year, based on a previous
Maricopa County emissions inventory (MCESD, 1999).
MCAQD estimated 632.44 acres burned [(1,967,795 linear ft. × 7 ft. × 2)/43,560 ft/acre]. Acres
burned were converted to tons of material burned using a 3.2 tons/acre fuel loading factor for
“weeds, unspecified” from AP-42 (US EPA, 1992). This resulted in an estimated 2,023.81 ton of
material burned.
Annual emissions were then calculated by multiplying the amount of material burned by AP-42
emission factors for “weeds, unspecified” as shown in Table 3.7–1.
Table 3.7–1.

Emission factors for open burning.
Emission factors (lbs/ton burned)
Category
VOC
NOx
CO
Weeds, unspecified
9
4
85

Based on an analysis of 2011 complaints received reporting suspected open or illegal outside
burning, emissions estimates were multiplied by a factor of 2.87 to account for unpermitted
illegal outdoor burning.
It was assumed that ditchbank and fence row burning occurs 5 days per week. Thus, season-day
emissions were calculated by dividing annual emissions (in lbs) by 65 (5 days/wk × 13
wks/ozone season).
Annual and season-day emissions for the nonattainment area were calculated by multiplying the
percentage of agricultural land use within the eight-hour ozone nonattainment area (58.46%) by
the Maricopa County emissions estimates. See Section 1.5.2 for a discussion of the land use data
used.

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Table 3.7–2 summarizes annual and season-day emissions from ditchbank and fence row burning
for Maricopa County and the eight-hour ozone nonattainment area.
Table 3.7–2.

Annual and season-day emissions from ditchbank and fence row burning.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Category
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
26.14
11.62
246.85
804.2
357.4
7,595.5
8-hr ozone NAA
15.28
6.79
144.32
470.2
209.0
4,440.7

3.7.2

Structure fires

Structure fire emissions for Maricopa County were grown from 2008 based on county population
growth from 2008 to 2011. Population data was provided by MAG and is shown in Table 3.7−3.
Table 3.7–3.

Maricopa County population growth, 2008 to 2011.
2008
2011
Maricopa Co. Total Population
4,279,760
4,129,646

% change
–3.51%

The 2008 annual emissions from structure fires in Maricopa County and the subsequently grown
2011 annual emissions are shown in Table 3.7–4.
Table 3.7–4.
Year
2008
2011

2008 and 2011 annual emissions from structure fires in Maricopa County.
Annual emissions (tons/yr)
VOC
NOx
CO
15.32
1.95
83.56
14.78
1.88
80.63

Annual emissions for the eight-hour ozone nonattainment area were derived by multiplying
annual county emissions by the percentage of total residential population within the
nonattainment area (101.14%). See Section 1.5.1 for a discussion of the population data used.
It was assumed that structure fires occur 7 days a week; however, structure fires vary seasonally
and may increase during cold weather. Because local season-specific data were not readily
available, seasonal occurrences of residential and non-residential structure fires reported by the
Federal Emergency Management Agency (FEMA) were used to derive a seasonal adjustment
factor for the ozone season (US EPA, 2001d). FEMA reported that 20.9% of residential
structure fires and 23.7% of non-residential structural fires occurred during July, August, and
September 1994. Thus, an average occurrence of 22.3% [(20.9% + 23.7%) ÷ 2] was used as a
seasonal adjustment factor to estimate ozone season-day emissions.
Ozone season-day emissions for Maricopa County and the nonattainment area were derived by
multiplying the annual emissions (in lbs) by the seasonal adjustment factor (22.3%) and then
dividing by 91 (7 days/wk × 13 wks/ozone season).

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Table 3.7–5.

Annual and season-day emissions from structure fires.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
14.78
1.88
80.63
72.4
9.2
395.2
8-hr ozone NAA
14.95
1.90
81.55
73.3
9.3
399.7

3.7.3

Aircraft engine testing

Annual emissions from engine testing facilities were derived from annual emissions reports from
permitted sources that were not considered point sources in this inventory. It was assumed that
there were no significant unpermitted sources within Maricopa County. Ozone season-day
emissions were calculated based on operating schedule information provided in the facilities’
annual emissions reports.
Since all facilities considered in this section are located within the eight-hour ozone nonattainment area, total emission values for the county and the nonattainment area are equal. Results are
shown in Table 3.7–6.
Table 3.7–6.

Annual and season-day emissions from aircraft engine testing.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
4.72
46.36
16.16
26.1
259.3
91.2
8-hr ozone NAA
4.72
46.36
16.16
26.1
259.3
91.2

3.7.4

Vehicle fires

Vehicle fire emissions for Maricopa County were grown from 2008 based on county population
growth from 2008 to 2011. The population data used is shown in Table 3.7−3.
The 2008 annual emissions from vehicle fires in Maricopa County and the subsequently grown
2011 annual emissions are shown in Table 3.7–7.
Table 3.7–7.
Year
2008
2011

2008 and 2011 annual emissions from vehicle fires in Maricopa County.
Annual emissions (tons/yr)
VOC
NOx
CO
9.61
1.20
37.55
9.27
1.16
36.23

Annual emissions for the eight-hour ozone nonattainment area were derived by multiplying
annual county emissions by the percentage of total residential population within the
nonattainment area (101.14%). See Section 1.5.1 for a discussion of the population data used.
It was assumed that vehicle fires occur evenly throughout the year. Thus, ozone season-day
emissions were derived by dividing the Maricopa County and nonattainment area annual
emissions (in lbs.) by 365 days/year. The results are shown in Table 3.7−8 below.
Table 3.7–8.

Annual and season-day emissions from vehicle fires.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
9.27
1.16
36.23
50.8
6.4
198.5
8-hr ozone NAA
9.38
1.17
36.64
51.4
6.4
200.8

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3.7.5

Crematories

Emissions from human and animal crematories were calculated by the “scaling up” method as
described in EPA emissions inventory guidance (US EPA, 2001a). This method combines
detailed emissions data from a subset of sources, and county-level employment data from the US
Census Bureau (2012) to develop a per-employee emission factor that is then used to estimate
emissions from all sources in an industry category.
The most recent data from the US Census Bureau’s County Business Patterns (CBP) for 2010
employment were used. Table 3.7–9 shows the NAICS code and employment data used to
calculate emissions from crematories.
Table 3.7–9. County-level employment estimates for crematories, by NAICS code.
NAICS
Estimated
code
NAICS description
employment
81222
Cemeteries and crematories
251

There were no point sources in this category. Area-source employment estimate were used to
“scale up” emissions reported from those facilities surveyed in 2011.
Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the ratio of industrial employment in the nonattainment area to industrial
employment in the county. See Section 1.5.1 for a discussion of the employment data used.
Table 3.7–10 summarizes annual and season-day emissions from crematories in both Maricopa
County and the eight-hour ozone nonattainment area.
Table 3.7–10. Annual and season-day emissions from crematories.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
1.18
11.19
2.23
51.1
88.5
17.3
8-hr ozone NAA
1.18
11.14
2.22
50.9
88.1
17.2

3.7.6

Accidental releases

As part of its air quality permit compliance program, MCAQD keeps an “upset log” for each
calendar year that records excess emissions and accidental releases at permitted facilities.
Annual emissions inventory reports also provide for recording of accidental releases. Data from
these two sources documented the release of 0.45 tons of VOC for the year 2012.
Ozone season-day emissions were calculated based on the whether the reported release occurred
during the ozone season. If emissions occurred during the ozone season, those emissions were
summed and divided by the number of days in the ozone season to produce season-day
emissions. Emissions within the eight-hour ozone nonattainment area are calculated based on
locations of facilities that reported releases. Results are shown in Table 3.7–11.

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Table 3.7–11. Annual and season-day emissions from accidental releases.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
0.45
0.0
0.0
2.1
0.0
0.0
8-hr ozone NAA
0.45
0.0
0.0
2.1
0.0
0.0

3.7.7

Hospitals

Emissions from hospitals were calculated by the “scaling up” method as described in EPA
emissions inventory guidance (US EPA, 2001a). This method combines detailed emissions data
from a subset of sources and county-level employment data from the US Census Bureau (2012)
to develop a per-employee emission factor that is then used to estimate emissions from all
sources in an industry category. The most recent data from the US Census Bureau’s County
Business Patterns (CBP) for 2010 employment were used. CBP employment data for NAICS
code 662110 (general medical and surgical hospitals) indicated 59,646 employees in this
industry in Maricopa County.
Ozone season-day emissions were calculated in the same method as annual emissions, only using
surveyed daily emissions instead of annual totals. Annual and season-day emissions for the
eight-hour ozone nonattainment area were calculated by multiplying the Maricopa County
emission totals by the ratio of population in the nonattainment area to population in the county.
See Section 1.5.1 for a discussion of the employment data used.
Table 3.7–12 summarizes annual and season-day emissions from hospitals in both Maricopa
County and the eight-hour ozone nonattainment area.
Table 3.7–12. Annual and season-day emissions from hospitals.
Annual VOC
Season-day VOC
Geographic area
emissions (tons/yr)
emissions (lbs/day)
Maricopa County
8.57
52.3
8-hr ozone NAA
8.66
52.9

3.7.8

Wildfires

2011 Maricopa County wildfire data were obtained from the Arizona State Forestry Division
(ASFD) (G. Buettner, pers. commun., December 17, 2012); the National Wildfire Coordinating
Group (NWCG, 2012), and the US Fire Administration, National Fire Data Center (USFA,
2012).
The Arizona State Forestry Division (ASFD) provides for the prevention and suppression of
wildfires on state trust land and private lands located outside of incorporated communities. The
wildfire data provided by ASFD includes wildfires that occur outside of local fire districts and
municipalities on State, private, and U.S. Bureau of Land Management (BLM) land. In 2011,
the (ASFD) reported 5 wildfires in Maricopa County, encompassing 15.2 acres.
Wildfire data provided by ASFD were compared to 2011 Incident Status Summary reports (ICS209) to identify wildfires that may have occurred outside of ASFD jurisdiction. ICS-209 reports
only include large wildfires, generally fires greater than 100 acres. ICS-209 reports showed two
additional Maricopa County wildfires in 2011, totaling 2,006 acres (NWCG, 2012).

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Lastly, 2011 National Fire Incident Reporting System (NFIRS) data were obtained from the US
Fire Administration (USFA, 2012). NFIRS is a voluntary national reporting system used by fire
departments to report fires and other incidents to which they respond and to maintain records of
these incidents in a uniform manner. However, not all fire departments report to NFIRS and they
may not report all of their fire incidents. The 2011 NFIRS data was culled for wildland fires
greater than 1 acre that contained either latitude and longitude or township and range
information. Wildfire data for Arizona included 18 fires which met these criteria; however, only
2 of these fires were located within Maricopa County, encompassing 7 acres. The NFIRS data
was compared to the ASFD data to identify duplicates by comparing the incident dates and
locations. One NFIRS fire was excluded from the combined dataset because it may have been a
duplicate already captured in the ASFD data. Table 3.7–13 summarizes fire data obtained from
each data source.
Table 3.7–13. 2011 wildfire activity in Maricopa County.
Number of
Acres
Data source
fires in 2011
burned
Arizona State Forestry Division
5
15.2
2011 NFIRS data
1
1.5
ICS-209
2
2,006.0
Total:
8
2,022.7

Estimates for fuel loading rates were assigned using fuel model codes from the National Fire
Danger Rating System (NFDRS) and a table of fuel loading values for NFDRS fuel model
categories (WGA/WRAP, 2005). The department used the NFDRS Fuel Model map in ArcGIS
to identify NFDRS fuel types for fires with latitude and longitude data.
Table 3.7–14. Data used to estimate 2011 wildfire emissions.
Number of
Acres
Fuel loading
NFDRS model category
fires in 2011
burned
factor (tons/acre)
Agriculture*
1
1.5
4.5
Barren*
1
0.1
0.75
Intermediate brush
4
2,019.5
15.0
Sagebrush grass
2
1.6
4.5
Total:
8
2,022.7
—
* “Agriculture” and “barren” NFDRS model descriptions were not included in WGA/WRAP 2002 fuel loading values for NFDRS fuel model
categories. Therefore, it was assumed that “Agriculture” is similar to "sagebrush grass" and “Barren” is similar to “western grasses (annual)”
and fuel loadings were assigned accordingly.

Estimates of the material burned were derived by multiplying the acres burned for each category
by the applicable fuel loading factor.
Latitude and longitude data were used to determine the number of acres burned inside of the
nonattainment area. Only one wildfire (=0.1 acre) occurred outside of the eight-hour ozone
nonattainment area. Table 3.7–15 shows the number of wildfires and acres burned for Maricopa
County and the eight-hour ozone nonattainment area and an estimate of material burned.
Table 3.7–15. Summary of 2011 wildfires, acres burned, and estimate of material burned.
No. of
Acres
Material burned
Material burned in 8-hr
Geographic Area
fires
burned
annually (tons/yr)
ozone season (tons/season)
Maricopa County
8
2,023
30,307
30,104
8-hr ozone NAA
7
2,023
30,306
30,104

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Annual emissions from wildfires for each geographic area were calculated by multiplying the
material burned for each area by the emission factor shown in Table 3.7–16 below. Emission
factors were obtained from the Western Regional Air Partnership's (WRAP) 2002 Fire Emissions
Inventory (WGA/WRAP, 2005).
Table 3.7–16. Emission factors for wildfires and prescribed broadcast burning.
Emission factors (lb/ton)
Activity
VOC
NOx
CO
Wildfires and prescribed broadcast burning
13.6
6.2
289

Annual emissions from wildfires for Maricopa County and the nonattainment area are shown in
Table 3.7–17.
Table 3.7–17. Annual emissions from wildfires.
Annual emissions (tons/yr)
Geographic Area
VOC
NOx
CO
Maricopa County
206.08
93.95
4,379.29
8-hr ozone NAA
206.08
93.95
4,379.28

Because all fires that occurred during ozone season were within the nonattainment area, seasonday emissions for the county and the nonattainment area were the same. Ozone season-day
emissions were estimated by multiplying the material burned during ozone season by the
appropriate emission factor and dividing the result by the number of ozone season burn days. In
2011, 32 burn days occurred during the ozone season in Maricopa County. Table 3.7–18 shows
season-day emissions from wildfires in Maricopa County and the nonattainment area.
Table 3.7–18. Season-day emissions from wildfires.
Season-day emissions (lbs/day)
Ozone-season
Geographic Area
burn days
VOC
NOx
CO
Maricopa County
12,794.0
5,832.6
271,872.2
32
8-hr ozone NAA
12,794.0
5,832.6
271,872.2

3.7.9

Prescribed fires

Prescribed fire data were obtained from the Arizona Department of Environmental Quality
(ADEQ) (B. Busby, pers. commun., November 8, 2012). The ADEQ reported that fourteen
prescribed fires occurred in Maricopa County in 2011. Sixty-two acres of piled fuels were
burned. All fourteen prescribed fires occurred inside the eight-hour ozone nonattainment area.
Because all 2011 prescribed fires were piled fuels, material burned was derived by multiplying
the number of acres burned by tons of piles per acre for each fire. Table 3.7–19 shows the data
provided by the ADEQ, the amount of material burned for each fire, whether the fire occurred
within the nonattainment area and during the ozone season.

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Table 3.7–19. 2011 prescribed fire activity in Maricopa County.

Date
01/05/2011
04/06/2011
04/13/2011
04/14/2011
04/19/2011
07/23/2011
08/10/2011
08/11/2011
08/16/2011
10/20/2011
11/08/2011
11/15/2011
11/16/2011
12/20/2011
Total:

Burn
number
TNF0301
TNF0301
TNF0106
TNF0106
TNF0301
TNF0611
TNF0301
TNF0301
TNF0301
TNF0301
TNF0301
TNF0106
TNF0106
TNF0301

Burn location
T7N,R8E,S36
T2N,R7E,S18
T6N,R7E,S33
T7N,R5E,S7
T3N,R8E,S27
T3N,R11E,S2
T3N,R8E,S27
T3N,R8E,S27
T3N,R8E,S25
T2N,R9E,S31
T2N,R9E,S31
T6N,R7E,S15
T7N,R6E,S1
T2N,R9E,S11

Tons/
acre
1
1
1
1
1
5
0.25
0.25
1
1
3
1
1
0.25

Acres
burned
5
1
1
1
10
15
6
6
4
5
5
1
1
1
62

Material
burned
(tons)
5
1
1
1
10
75
1.5
1.5
4
5
15
1
1
0.25
122.25

During
ozone
season?
N
N
N
N
N
Y
Y
Y
Y
N
N
N
N
N

Within 8-hr
NAA?
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y

Prescribed fire emission factors for “piled fuels” were obtained from the Western Regional Air
Partnership’s (WRAP) 2002 Fire Emissions Inventory (WGA/WRAP, 2005). The emission
factors are listed below in Table 3.7–20.
Table 3.7–20. Emission factors for prescribed fire (piled fuels).
Emission factors (lbs/ton burned)
Type of fire
VOC
NOx
CO
Prescribed fire (piled fuels)
6.3
6.2
74.3

Annual emissions from prescribed fires in Maricopa County were derived by multiplying
material burned by the emission factor then dividing by 2000 lbs/ton.
Four prescribed fires occurred during the ozone season. The fires resulted in 82 tons of material
burned. It was assumed the prescribed fires lasted one day. Ozone-season day emissions were
derived by multiplying 82 tons of material burned by the emission factor (lbs/ton) and then
dividing the resulting emissions by four burn days.
Since the prescribed fire data provided by ADEQ included burn location, GIS was used to
determine the fires that burned inside the nonattainment area. All the 2011 prescribed fires
burned within the eight-hour nonattainment area; therefore, annual and season-day emissions
estimates for the nonattainment area are equal to county totals . Table 3.7–21 shows the annual
and season-day from prescribed fires for Maricopa County and the nonattainment area.
Table 3.7–21. Annual and season-day emissions from prescribed fires.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic Area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
0.39
0.38
4.54
129.2
127.1
1,523.2
8-hr ozone NAA
0.39
0.38
4.54
129.2
127.1
1,523.2

2011 Ozone Precursor Emissions Inventory

56

February 2014

3.8

Summary of all area sources

Tables 3.8–1 and 3.8–2 summarize the total annual and average season-day emissions from all
area sources addressed in this chapter, for both Maricopa County and the eight-hour ozone NAA,
respectively.
Table 3.8–1.

Annual and season-day emissions from all area sources in Maricopa County.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Source Category
VOC
NOx
CO
VOC
NOx
CO
Fuel combustion:
Industrial distillate oil: Boilers
0.61
60.87
15.22
3.9
390.2
97.5
Industrial distillate oil: Engines
0.00 1,838.26
395.65
0.0 11,783.7
2,536.2
Industrial natural gas
36.99
730.94
455.30
217.8
4,303.8
2,680.8
Comm./inst. distillate oil: Boilers
0.00
0.12
0.03
0.0
0.8
0.2
Comm./inst. distillate oil: Engines
0.00
3.72
0.80
0.0
23.8
5.1
Comm./inst. natural gas
54.48 1,080.73
662.84
252.0
4,998.0
3,065.4
Residential distillate oil
0.01
0.35
0.10
0.0
0.0
0.0
Residential natural gas
49.81
851.32
362.26
119.6
2,044.2
869.9
Residential LPG
2.00
51.35
14.56
0.0
0.0
0.0
Residential wood combustion
509.7
57.72 2,959.91
0.0
0.0
0.0
Residential kerosene
0.00
0.03
0.01
0.0
0.0
0.0
All Fuel Combustion:
653.61 4,675.41 4,866.67
593.3 23,544.5
9,255.2
Industrial processes:
Chemical manufacturing
Commercial cooking
Bakeries
Secondary metal production
Rubber/plastic product mfg.
Electrical equipment mfg.
Industrial processes, NEC
All Industrial Processes:
Solvent use:
Architectural coatings
Auto refinishing
Traffic markings
Factory finished wood
Wood furniture
Aircraft surface coating
Miscellaneous surface coating
Degreasing
Dry cleaning
Graphics arts
Miscellaneous industrial solvent use
Consumer and commercial products
Cutback asphalt
Emulsified asphalt
Roofing asphalt
Agricultural pesticides
All Solvent Use

2011 Ozone Precursor Emissions Inventory

77.42
149.33
78.18
41.01
1,766.75
122.80
48.51
2,284.00

392.60

4,976.22
1,333.26
179.60
137.72
416.56
65.84
316.38
217.55
23.15
290.98
721.85
17,406.46
835.84
866.06
3.04
362.93
28,153.45

15.02

98.36

23.47
224.92
263.41

2.98
91.84
585.79

599.0
820.5
547.8
306.4
14,171.0
746.2
325.6
17,516.5

2,157.1
107.9

697.4

135.8
1,245.8
1,489.5

16.4
525.2
3,396.2

30,622.9
10,255.9
1,823.6
1,396.7
3,434.7
473.1
2,450.5
1,451.4
178.1
2,225.7
5,126.6
95,377.9
4,567.4
4,732.6
23.4
2,903.4
167,043.9

57

February 2014

Table 3.8–1.

Annual and season-day emissions from all area sources in Maricopa County (continued).
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Source Category
VOC
NOx
CO
VOC
NOx
CO
Storage/transport:
Residential portable gas cans
2,935.10
16,126.9
Commercial portable gas cans
564.43
3,101.3
Bulk plants
120.91
659.3
Gas stations Stage I: Submerged fill
85.08
528.7
Gas stations Stage I: Bal. submerged fill
229.60
1,426.8
Gas stations Stage II
0.00
0.0
Underground tanks: Breathing/emptying
777.00
4,138.6
Airports: aviation gasoline Stage I
347.57
1,904.5
Airports: aviation gasoline Stage II
18.04
98.8
Truck: gasoline (tank trucks in transit)
50.82
315.8
Pipeline gasoline
17.32
94.5
Volatile organic liquids storage/transport
30.54
182.7
All Storage/Transport
5,176.39
28,577.9
Waste treatment/disposal:
On-site incineration
Open burning: Land clearing debris
Landfills
Publicly owned treatment works
Other waste
Leaking underground storage tanks
All Waste Treatment/Disposal

0.17
0.67
36.59
75.02
2.12
1.05
116.10

3.31
0.30
30.40

0.79
6.30
108.55

22.19

77.93

56.04

190.06

Misc. area sources:
Agricultural field burning
Structure fires
Aircraft engine testing
Vehicle fires
Crematories
Accidental releases
Hospitals
Wildfires
Prescribed fires
All Misc. Area Sources
TOTAL, ALL AREA SOURCES

26.14
14.78
4.72
9.27
1.18
0.45
8.57
206.08
0.39
271.58
36,654.65

11.62
1.88
46.36
1.16
11.19
0.00

246.85
80.63
16.16
36.23
2.23
0.00

2011 Ozone Precursor Emissions Inventory

93.95 4,379.29
0.38
4.54
166.54 4,765.93
5,161.56 10,411.95

58

1.1
20.5
200.7
577.1
10.9
32.3
837.8

21.4
9.1
167.4

5.3
193.8
596.4

122.8

431.4

315.6

1,119.6

804.2
72.4
26.1
50.8
51.1
2.1
52.3
12,794.0
129.2
13,982.3
228,556.4

357.4
9.2
259.3
6.4
88.5
0.0

7,595.5
395.2
91.2
198.5
17.3
0.0

5,832.6 271,872.2
127.1
1,523.2
6,680.5 281,693.1
32,035.2 295,571.5

February 2014

Table 3.8–2.

Annual and season-day emissions from all area sources in the eight-hour ozone NAA.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Source Category
VOC
NOx
CO
VOC
NOx
CO
Fuel combustion:
Industrial distillate oil: Boilers
0.61
60.61
15.15
3.9
388.5
97.1
Industrial distillate oil: Engines
0.00 1,830.35
393.95
0.0 11,733.0
2,525.3
Industrial natural gas
36.83
727.80
453.34
219.9
4,285.3
2,669.3
Comm./inst. distillate oil: Boilers
0.00
0.12
0.03
0.0
0.8
0.2
Comm./inst. distillate oil: Engines
0.00
3.70
0.80
0.0
23.7
5.1
Comm./inst. natural gas
54.42 1,079.44
662.05
251.7
4,992.0
3,061.7
Residential distillate oil
0.01
0.35
0.10
0.0
0.0
0.0
Residential natural gas
50.20
857.96
365.09
120.5
2,060.1
876.7
Residential LPG
2.02
51.93
14.73
0.0
0.0
0.0
Residential wood combustion
515.53
58.38 2,993.75
0.00
0.00
0.00
Residential kerosene
0.00
0.03
0.01
0.0
0.0
0.0
All Fuel Combustion
659.63 4,670.68 4,898.99
593.0 23,483.5
9,235.4
Industrial processes:
Chemical manufacturing
Commercial cooking
Bakeries
Secondary metal production
Rubber/plastic product manufacturing
Electrical equipment manufacturing
Industrial processes, NEC
All Industrial Processes
Solvent use:
Architectural coatings
Auto refinishing
Traffic markings
Factory finished wood
Wood furniture
Aircraft surface coating
Miscellaneous surface coating.
Degreasing
Dry cleaning
Graphics arts
Miscellaneous industrial solvent use
Consumer and commercial products
Cutback asphalt
Emulsified asphalt
Roofing asphalt
Agricultural pesticides
All Solvent Use

2011 Ozone Precursor Emissions Inventory

77.09
151.03
77.85
41.01
1,759.15
122.80
47.55
2,276.48

397.07
15.02

98.36

23.47
224.92
263.41

2.98
91.84
590.27

5,033.13
1,327.53
171.12
137.12
414.77
65.84
315.02
216.62
23.42
289.73
718.75
17,605.51
788.72
817.24
3.08
212.18
28,139.77

596.5
829.8
545.4
306.4
14,110.1
746.2
318.0
17,452.4

2,181.7
107.9

697.4

135.8
1,245.8
1,489.5

16.4
525.2
3,420.8

30,973.1
10,211.8
1,737.5
1,390.7
3,419.9
473.1
2,440.0
1,445.1
180.1
2,216.1
5,104.6
96,468.5
4,309.9
4,465.8
23.7
1,697.5
166,557.4

59

February 2014

Table 3.8–2.
(continued).

Annual and season-day emissions from all area sources in the eight-hour ozone NAA

Source Category
Storage/transport:
Residential portable gas cans
Commercial portable gas can:
Bulk plants
Gas stations Stage I: Submerged fill
Gas stations Stage I: Bal. submerged fill
Gas stations Stage II
Underground tanks: Breathing/emptying
Airports : Aviation gasoline Stage I
Airports : Aviation gasoline Stage II
Truck: Gasoline (tank trucks in transit)
Pipeline gasoline
Volatile organic liquids storage/transport
All Storage/Transport:
Waste treatment/disposal:
On-site incineration
Open burning: Land clearing debris
Landfills
Publicly owned treatment works
Other waste
Leaking underground storage tanks
All Waste Treatment/Disposal
Misc. area sources:
Agricultural field burning
Structure fires
Aircraft engine testing
Vehicle fires
Crematories
Accidental releases
Hospitals
Wildfires
Prescribed fires
All Misc. Area Sources
ALL AREA SOURCES:

3.9

Annual emissions (tons/yr)
VOC
NOx
CO
2,968.67
570.89
120.91
85.08
229.60
0.00
777.00
344.41
17.87
50.82
17.32
28.80
5,211.35

Season-day emissions (lbs/day)
VOC
NOx
CO
16,311.4
3,136.7
659.3
528.7
1,426.8
0.0
4,138.6
1,887.2
97.9
315.8
94.5
169.3
28,766.2

0.17
0.30
36.59
75.88
2.12
1.05
116.10

3.31
0.13
30.40

0.79
2.81
108.55

22.19

77.93

56.04

190.06

15.28
14.95
4.72
9.38
1.18
0.45
8.66
206.08
0.39
261.09
36,664.42

6.79
1.90
46.36
1.17
11.14
0.00

144.32
81.55
16.16
36.64
2.22
0.00

93.95
0.38
161.70
5,151.83

4,379.28
4.54
4,664.71
10,344.03

1.1
9.1
200.7
583.7
10.9
32.3
837.8

21.4
4.1
167.4

5.3
86.4
596.4

122.8

431.4

315.6

1,119.6

470.2
73.3
26.1
51.4
50.9
2.1
52.9
12,794.0
129.2
13,650.0
227,856.8

209.0
9.3
259.3
6.4
88.1
0.0

4,440.7
399.7
91.2
200.8
17.2
0.0

5,832.6
127.1
6,531.8
31,820.5

271,872.2
1,523.2
278,544.9
292,320.7

Quality assurance / quality control procedures

Quality assurance and quality control (QA/QC) activities for the area source emissions inventory
were designed to create a comprehensive, accurate, representative and comparable inventory of
area source emissions for Maricopa County and the nonattainment area. During each step of
creating, building and reviewing the area source emissions inventory, quality checks and
assurances were performed to establish confidence in the inventory structure and data.
Area source categories were identified for inclusion in the inventory based on the latest
Emissions Inventory Improvement Program (EIIP) guidance available. In addition, recent EPA
activities to develop county-level emissions estimates for newly created source categories (such
as portable fuel containers) or refined source classification codes were also reviewed, and
incorporated where relevant. Prior-year inventories for the region were also examined to identify
possible additional categories for inclusion in the present inventory. The list of area source
2011 Ozone Precursor Emissions Inventory

60

February 2014

categories developed based on these guidance documents was modified to fit the characteristics
of Maricopa County, with some area source categories determined to be insignificant (e.g.,
emissions from industrial coal combustion, or oil and natural gas production, and snowmobile
use).
Data for area source emission calculations were gathered from a wide universe of resources.
Whenever applicable, local surveyed data (such as annual emissions report) was used as this data
best reflects activity in the county and the nonattainment area. When local data was not available, state data from state agencies (such as the Arizona Department of Transportation) and
regional bodies (such as the Western Regional Air Partnership [WRAP]) were used. National
level data (such as the US Census Bureau) was used when no local, state or regional data was
available. In addition, the most recent EIIP guidance for area sources was consulted for direction
in determining the most relevant data source for use in emissions calculations.
Emissions calculations for area sources were performed by three air quality planners and one unit
manager. All area source emission estimates were calculated in spreadsheets to ensure the calculations could be verified and reproduced. Whenever possible or available, the “preferred
method” described in the most recent EIIP guidance documents for area sources was used to
calculate emissions. Emissions were estimated using emission factors from EIIP guidance, AP42, and local source testing. Local seasonal and activity data were used when available, with
EPA and EIIP guidance used when no local seasonal or activity data existed. All calculations
were evaluated to ensure that emissions from point sources were not being double-counted and to
determine if rule effectiveness applied.
Once area source emission estimates had been produced, several quality control checks were
performed to substantiate the calculations. Most area source calculations were peer-reviewed by
two other planners, with all area sources being reviewed by at least one other planner. Peer
review ensured that all emission calculations were reasonable and could be reproduced. Sensitivity analyses and computational method checks were performed on area sources when emissions seemed to be outside the expected ranges. When errors were found, the appropriate
changes were made by the author of the calculations to ensure consistency of the emissions calculations. The peer-reviewed emissions estimates were combined into a draft area source chapter. This draft chapter was read through in its entirety by the unit manager and the three air
quality planners for final review, with any identified errors corrected by the author of the section.
The draft version of the area source chapter was sent to the Arizona Department of Environmental Quality, the Arizona Department of Transportation, and the Maricopa Association of
Governments for a quality assurance review. These agencies provided comments which were
addressed and incorporated into the final area source chapter. The QA/QC activities described
here have produced high levels of confidence in the area source emissions estimates detailed in
this chapter, and represent the best efforts of the inventory preparers.

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3.10

References

ADA, 2013. Arizona Department of Agriculture, 1080 database. Internet address:
http://www.azda.gov/Search1080/Search.aspx
ADOT, 2012. Arizona Department of Transportation, Motor Vehicle Division, County
Distribution Summary Report and Adjusted County MVF Distribution Report, for Jan.
through December 2011.
GOEP, 2013. Governor's Office of Energy Policy, Arizona Energy Statistics, Heating and
Cooling Degree Days. Internet address: http://www.azenergy.gov/doclib/Degreedays.pdf.
MCESD, 1999. 1999 Periodic Ozone Emissions Inventory for the Maricopa County, Arizona
Nonattainment Area, Maricopa County Environmental Services Department, Rev. Aug.
2002.
NWCG, 2012. National Wildfire Coordinating Group, Historical Incident ISC-209 reports. 2011
Significant Incident Summary Spreadsheet for southwest GACC Incidents. Internet address:
http://fam.nwcg.gov/fam-web/hist_209/report_list_209.
Pechan, 2012. Pechan Environmental Consulting. 2008 Nonpoint Emission Estimates. Solvent
Usage – Surface Coatings. Solvent Utilization Documentation. Internet address:
http://cert.pechan.com/epa/npee2008/index.html
Pechan,2012a. Pechan Environmental Consulting. 2008 Nonpoint Emission Estimates. Internet
address: http://cert.pechan.com/epa/npee2008/index.html#CommercialCooking
Pechan, 2012b. 2008 Nonpoint Emission Estimates. Pechan Environmental Consulting.
Gasoline Distribution: Stage I: Tank Trucks in Transit, Internet address:
http://cert.pechan.com/epa/npee2008/index.html
Pechan, 2012c. 2008 Nonpoint Emission Estimates. Pechan Environmental Consulting. Solvent
Usage – Other. Solvent Utilization Documentation, Table 2. Internet address:
http://cert.pechan.com/epa/npee2008/index.html
US Census Bureau, 2012. 2010 County Business Patterns (NAICS). Internet address:
http://censtats.census.gov/cgi-bin/cbpnaic/cbpsect.pl
US EPA, 1992. Compilation of Air Pollution Emission Factors (AP-42). Volume I: Stationary
Point and Area Sources. Fifth ed. Chapter 2: Solid Waste Disposal, 2.5 Open Burning, Table
2.5–5. US EPA, Office of Air Quality Planning and Standards, Research Triangle Park, NC.
US EPA, 1995a. Architectural Surface Coating. Emissions Inventory Improvement Program
(EIIP) Vol. III, Chap. 1. Nov. 1995. Prepared by Eastern Research Group, Inc. for the Area
Source Committee, EIIP. Internet address: http://www.epa.gov/ttn/chief/eiip/techreport/
volume03/archsfc.pdf
US EPA, 1995b. Compilation of Air Pollution Emission Factors (AP-42). Fifth Ed., Volume I,
Chapter 5: Petroleum Industry, 5.2, Transportation and Marketing of Petroleum Liquids.
Table 5.2-7. Jan. 1995. http://www.epa.gov/ttn/chief/ap42/ch05/final/c05s02.pdf
US EPA, 1997. Traffic Markings. Emissions Inventory Improvement Program (EIIP) Vol. III,
Chap. 14. May 1997. Prepared by Eastern Research Group, Inc. for the Area Source
Committee, EIIP. Internet address: http://www.epa.gov/ttnchie1/eiip/techreport/volume03/
iii14.pdf
US EPA, 1998. Compilation of Air Pollution Emission Factors (AP-42). Fifth Ed., Volume 1,
Chapter 1: External Combustion Sources. Natural Gas Combustion. Internet address:
http://www.epa.gov/ttn/chief/ap42/ch01/final/c01s04.pdf
US EPA, 2001a. Introduction to Area Source Emission Inventory Development. Emission
Inventory Improvement Program (EIIP) Vol. III, Chapter 1. Revised Final, January 2001.
Prepared by Eastern Research Group, Inc. for the Area Source Committee, EIIP. Internet
address: http://www.epa.gov/ttn/chief/eiip/techreport/volume03/iii01_apr2001.pdf

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US EPA, 2001b. Gasoline Marketing (Stage I and Stage II). Emissions Inventory Improvement
Program (EIIP) Vol. III, Chap 11. Revised Final, January 2001. Prepared by Eastern
Research Group, Inc. for the Area Source Committee, EIIP. Internet address:
http://www.epa.gov/ttn/chief/eiip/techreport/volume03/iii11_apr2001.pdf
US EPA, 2001c. Leaking Underground Storage Tanks. Emission Inventory Improvement
Program Vol. III, Area Source Method Abstract. May 2001. Internet address:
http://www.epa.gov/ttn/chief/eiip/techreport/volume03/ust2_dec2000.pdf
US EPA, 2001d. Structure Fires. Emission Inventory Improvement Program (EIIP) Vol. III,
Chap. 18. Revised Final, Jan. 2001. Prepared by Eastern Research Group, Inc. for the Area
Sources Committee, EIIP. Internet address:
http://www.epa.gov/ttn/chief/eiip/techreport/volume03/iii18_apr2001.pdf
US EPA, 2012a. WebFIRE. EPA’s online emissions factor repository, retrieval, and
development tool. Internet address: http://www.epa.gov/ttn/chief/webfire/index.html
US EPA, 2012b. Residential Wood Combustion (RWC) Estimation Tool. Internet address:
ftp://ftp.epa.gov/EmisInventory/2011nei/doc/
US EPA, 2012c. 2011 National Emissions Inventory Information, Data and documentation.
Internet address: ftp://ftp.epa.gov/EmisInventory/2011nei/doc/
USFA, 2012. The United States Fire Administration, National Fire Data Center, National Fire
Incident Reporting System (NFIRS), Data Archives: 2011 Public Data Release CD,
December 11, 2012.
WGA/WRAP, 2005. 2002 Fire Emission Inventory for the WRAP Region – Phase II. Project
No. 178-6. Western Governors Association/Western Regional Air Partnership. July 22, 2005.
Tables 5 and 6. Internet address: http://www.wrapair.org/forums/fejf/documents/
WRAP_2002_PhII_EI_Report_20050722.pdf.

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This page intentionally blank.
.

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4.

Nonroad Mobile Sources

4.1

Introduction

Nonroad mobile sources are defined as those that move or are moved within a 12-month period
and are not licensed or certified as highway vehicles. Nonroad mobile sources are vehicles and
engines that fall under the following categories:
•
•
•
•
•
•
•
•
•
•
•
•
•

Agricultural equipment, such as tractors, combines and balers;
Airport ground support equipment, such as baggage tugs and terminal tractors;
Commercial equipment, such as generators and pumps;
Industrial equipment, such as forklifts and sweepers;
Construction and mining equipment, such as graders, back hoes and trenchers;
Lawn and garden equipment, such as leaf blowers and lawn mowers;
Logging equipment (not present in Maricopa County);
Pleasure craft, such as power boats and personal watercraft;
Railway maintenance equipment, such as rail straighteners;
Recreational equipment, such as all-terrain vehicles and off-road motorcycles;
Underground mining and oil field equipment (not present in Maricopa County);
Aircraft, such as jet and piston engines; and
Locomotives, such as switching and line haul trains.

Emission calculations for most nonroad mobile source categories except aircraft, airport ground
support equipment (GSE) and locomotives were derived using EPA’s NONROAD2008a model
(Core version 2008a, July 2009). Aircraft and airport GSE emission estimates were made using
the Federal Aviation Administration’s EDMS (Emissions Dispersion Modeling System) model,
ver. 5.1.1. Locomotive emission calculations were derived from surveys of the three railroad
companies that have operations in the county.
County specific temperature and fuel-related inputs are required for the operation of the
NONROAD2008a model. Monthly temperature and fuel data were provided by the Arizona
Department of Weights and Measures. The following table lists the local county inputs used:
Table 4.1–1. NONROAD2008 model county temperature and fuel-related inputs.
Fuel
Diesel
Gasoline
Temperatures (°F)
RVP
Sulfur
Sulfur
ETOH
Month
Max.
Min. Average
(psi)
(ppm)
(ppm)
(vol %)
January
64
45
54.9
9
9
15
9.92
February
69
48
58.5
9
9
16
10.29
March
79
54
66.8
8
9
11
9.52
April
87
61
74.2
8
9
14
7.90
May
91
66
78.7
7
9
13
9.41
June
107
80
93.4
7
10
18
9.38
July
106
84
95.2
7
9
21
9.70
August
104
82
93.2
7
6
18
9.58
September
101
79
90.1
7
6
18
9.73
October
91
65
78.1
8
9
15
9.49
November
81
56
68.7
8
6
14
10.17
December
65
46
56.0
8
16
12
9.02

Ethanol Blend
Market
Total Oxygen
share (%)
(wt %)
100
3.66
100
3.85
100
3.58
100
2.98
100
3.48
100
3.45
100
3.62
100
3.70
100
3.60
100
3.56
100
3.80
100
3.41

Note: All other required temperature and fuel-related inputs not listed assumed NONROAD2008 default values.

The US EPA recommends adjusting default NONROAD2008a model values (such as equipment
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population, activity levels of equipment, growth factors, etc.) where local data is available, as the
default values in the model are derived from national averages. The NONROAD2008a model
defaults were adjusted in the following manner:
•

Equipment population numbers and activity levels for commercial lawn and garden
equipment were adjusted based on 2003 survey results of the commercial lawn and
garden industry performed by ENVIRON as part of an inventory developed to study the
impact of visibility impairing pollutants (ENVIRON et al., 2003). Survey results show
that for most categories of lawn and garden equipment, the equipment populations for
Maricopa County are significantly lower than EPA default values, while the average
annual hours of operation for most equipment types are slightly higher than EPA's values.
Using these new local data results in a considerable decrease in emissions from this
category, compared with earlier results using EPA default data.

Spatial allocation factors were developed (based on EPA guidance documents) to apportion
nonroad emissions to the eight-hour ozone nonattainment area. The approaches used are
described in each section of this chapter.
Temporal allocations (used to calculate ozone season-day emissions) for nonroad equipment
categories modeled in the NONROAD2008a model are based on EPA recommendations on
weekday and weekend day activity levels for each nonroad equipment category (US EPA, 1999).
Table 4.1–2 below lists the weighted activity level allocation fractions for each equipment class
for weekdays and weekend days. For this report, the most conservative (highest) allocation
fraction in each nonroad equipment class was used to calculate season-day emissions.
Table 4.1–2. Default weekday and weekend day activity allocation fractions.
Equipment category
Weekday
Weekend day
Agricultural
0.1666667
0.0833334
Airport ground support
0.1428571
0.1428571
Commercial
0.1666667
0.0833334
Construction and mining
0.1666667
0.0833334
Industrial
0.1666667
0.0833334
Lawn and garden (residential)
0.1111111
0.2222222
Lawn and garden (commercial)
0.1600000
0.1000000
Logging
0.1666667
0.0833334
Pleasure craft
0.0600000
0.3500000
Railway maintenance
0.1800000
0.0500000
Recreational
0.1111111
0.2222222

4.2

Agricultural equipment

Annual emissions from agricultural equipment in Maricopa County were calculated using EPA’s
NONROAD2008a model, as discussed above. Ozone nonattainment area annual emissions were
calculated based on EIIP guidance (US EPA, 2002) which recommends using the ratio of
agricultural land inside the nonattainment area (161,371 acres) to agricultural land inside the
county (276,016 acres). See Section 1.5.2 for a discussion of land use data used.
Ozone nonattainment area emissions = Total Maricopa County
from agricultural equipment
VOC emissions from
agricultural equipment

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× Agricultural land use allocation factor

February 2014

= 38.53 tons

× 58.46%

= 22.52 tons VOC/yr

County season-day emissions were calculated by multiplying ozone season emissions (generated
by the NONROAD2008a model) by the most conservative weekday/weekend day activity
allocation factor for agricultural equipment listed in Table 4.1–2, and dividing the product by the
number of weeks (13) in the ozone season (US EPA, 1999), as follows:
Maricopa County VOC = Ozone season × 2,000
season-day emissions
VOC emissions (lb/ton)
(lbs/day)
(tons/season)
= 12.84

× 2,000

× daily activity allocation factor
for agricultural equipment
expressed as (week/day)

÷ 13
(weeks/season)

× 0.166667

÷ 13

= 392.3 lbs/day

Ozone nonattainment area season-day emissions were calculated by multiplying County seasonday emissions by the agricultural land use allocation factor:
Ozone nonattainment area = Maricopa County VOC
season-day emissions
season-day emissions
= 392.3 lbs/day

×

Agricultural land use allocation factor

×

58.46%

= 192.5 lbs/day

Table 4.2–1. Annual and season-day emissions from agricultural equipment.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
38.53
330.49
303.71
329.3
2,762.6
2,584.4
8-hr ozone NAA
22.52
193.22
177.56
192.5
1,615.1
1,510.9

4.3

Airport ground support equipment

Annual emissions from airport ground support equipment (GSE) and auxiliary power units
(APUs) were calculated using the Emissions Dispersion Modeling System (EDMS, v. 5.1.3)
from the U.S. Federal Aviation Administration (FAA). Activity data on 2011 aircraft operations
and GSE use for eight major airports were obtained from FAA’s Air Traffic Activity Data
System. In addition, activity data for 2011 for six small general aviation airports were assumed
to be the same as those in 2008, which was included in MAG’s 2009 survey data. (Further details
concerning the modeling input data and results are described in Section 4.11, Aircraft).
Emissions from GSE and APUs at Luke Air Force Base (AFB) for the year 2011 are assumed to
be the same as those used in the 2008 PM10 Periodic Emissions Inventory Report for the Maricopa County, Arizona, Nonattainment Area (MCAQD, 2011) based on input from Luke AFB.

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Table 4.3–1. Annual emissions (tons/yr) from airport ground support equipment (GSE) and auxiliary
power units (APUs).
Maricopa County
8-hr ozone NAA
VOC
NOx
CO
VOC
NOx
CO
GSE
104.94
317.86
3,171.63
104.40
316.39
3,155.22
APU
7.04
88.18
104.36
7.03
88.10
103.86
Total:
111.98
406.04
3,275.99
111.43
404.49
3,259.08

Table 4.3–2.

GSE
APU
Total:

4.4

Season-day emissions (lbs/day) from airport GSE and APU.
Maricopa County
8-hr ozone NAA
VOC
NOx
CO
VOC
NOx
CO
549.4
1,663.2
16,597.8
546.7
1,656.0
16,516.8
37.8
473.4
557.3
37.8
473.0
554.8
587.3
2,136.6
17,155.0
584.5
2,128.9
17,071.7

Commercial equipment

Annual emissions from commercial equipment in Maricopa County were calculated using EPA’s
NONROAD2008a model, as described in Section 4.1. Annual emissions for the eight-hour
ozone nonattainment area for this category were derived by applying the ratio of industrial
employment in the nonattainment area to Maricopa County totals, as data on the number of
wholesale establishments recommended by EIIP guidance (US EPA, 2002) was not available.
See Section 1.5.1 for a discussion of the industrial employment data used.
County season-day emissions were calculated by multiplying Maricopa County ozone season
emissions (generated by the NONROAD2008a model) by the most conservative weekday/
weekend day activity allocation factor for commercial equipment (0.1666667) listed in Table
4.1–2, and dividing the product by the number of weeks (13) in the ozone season (US EPA,
1999). Ozone nonattainment area season-day emissions were calculated based on industrial
employment ratios as described above.
Table 4.4–1. Annual and season-day emissions from commercial equipment.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
1,924.41
1,361.42
30,224.21
14,537.1
8,334.7
203,404.4
8-hr ozone NAA
1,916.15
1,355.57
30,094.46
14,474.7
8,299.0
202,531.2

4.5

Construction and mining equipment

Annual emissions from construction and mining equipment in Maricopa County were calculated
using EPA’s NONROAD2008a model as described in Section 4.1. Annual emissions for the
eight-hour ozone nonattainment area for this category were derived by applying the ratio of
construction employment in the nonattainment area to Maricopa County totals as a conservative
estimate, since the EIIP-recommended allocation factor of total dollar value of construction was
unavailable (US EPA, 2002). See Section 1.5.1 for a discussion of the population data used.
County season-day emissions were calculated by multiplying Maricopa County ozone season
emissions (generated by the NONROAD2008a model) by the most conservative weekday/
weekend day activity allocation factor for construction/mining equipment (0.1666667) listed in
Table 4.1–2, and dividing the product by the number of weeks (13) in the ozone season (US
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EPA, 1999). Ozone nonattainment area season-day emissions were calculated based on
construction employment ratios as described above.
Table 4.5–1. Annual and season-day emissions from construction and mining equipment.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
1,881.88
12,937.30 14,396.92
13,116.9
87,972.9
99,942.8
8-hr ozone NAA
1,941.80
13,349.23 14,855.32
13,534.5
90,774.0
103,125.0

4.6

Industrial equipment

Annual emissions from industrial equipment in Maricopa County were calculated using EPA’s
NONROAD2008a model, as described in Section 4.1. Annual emissions for the eight-hour
ozone nonattainment area for this category were derived by applying the ratio of industrial
employment in the nonattainment area to Maricopa County totals as a conservative estimate,
since the number of employees in manufacturing, as recommended by EIIP guidance (US EPA,
2002), was not available. See Section 1.5.1 for a discussion of the industrial employment data
used.
County season-day emissions were calculated by multiplying Maricopa County ozone season
emissions (generated by the NONROAD2008a model) by the most conservative weekday/
weekend day activity allocation factor for industrial equipment (0.1666667) listed in Table 4.1–
2, and dividing the product by the number of weeks (13) in the ozone season (US EPA, 1999).
Ozone nonattainment area season-day emissions were calculated based on industrial employment
ratios as described above.
Table 4.6–1. Annual and season-day emissions from industrial equipment.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
341.25
1,839.35
7,140.99
2,212.6
11,763.4
46,138.5
8-hr ozone NAA
339.78
1,831.45
7,110.33
2,203.1
11,712.9
45,940.4

4.7

Lawn and garden equipment

Annual emissions from lawn and garden equipment in Maricopa County were calculated using
EPA’s NONROAD2008a model, as described in Section 4.1. These results reflect new equipment population and usage estimates from survey work done in early 2003 for the Arizona
Department of Environmental Quality (discussed further in Section 4.1). Annual emissions for
the eight-hour ozone nonattainment area for this category were derived by applying the ratio of
population in the nonattainment area to Maricopa County totals, since the number of housing
units, as recommended by EIIP guidance, was not available (US EPA, 2002). See Section 1.5.1
for a discussion of the population data used.
County season-day emissions were calculated by multiplying Maricopa County ozone season
emissions (generated by the NONROAD2008a model) by the most conservative weekday/
weekend day activity allocation factor for lawn and garden equipment (0.1600000 for the
commercial segment, 0.2222222 for residential) listed in Table 4.1–2, and dividing the product
by the number of weeks (13) in the ozone season (US EPA, 1999). Ozone nonattainment area
season-day emissions were calculated based on population as described above.

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Table 4.7–1. Annual and season-day emissions from lawn and garden equipment.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
4,913.96
866.64
54,798.41
51,990.4
6,998.4
523,235.5
8-hr ozone NAA
4,970.15
876.55
55,425.05
52,584.9
7,078.4
529,218.9

4.8

Pleasure craft

Annual emissions from pleasure craft equipment in Maricopa County were calculated using
EPA’s NONROAD2008a model, as described in Section 4.1. Annual emissions for the eighthour ozone nonattainment area for this category were derived by applying the ratio of lake
surface area in the nonattainment area to Maricopa County totals, as recommended by EIIP
guidance (US EPA, 2002). See Section 1.5.2 for a discussion of the land use data used.
County season-day emissions were calculated by multiplying Maricopa County ozone season
emissions (generated by the NONROAD2008a model) by the most conservative weekday/
weekend day activity allocation factor for pleasure craft (0.350000) listed in Table 4.1–2, and
dividing the product by the number of weeks (13) in the ozone season (US EPA, 1999). Ozone
nonattainment area season-day emissions were calculated based on lake surface area as described
above.
Table 4.8–1. Annual and season-day emissions from pleasure craft equipment.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
530.39
96.56
1,249.66 11,527.0 1,996.8
26,738.3
8-hr ozone NAA
530.39
96.56
1,249.66 11,527.0 1,996.8
26,738.3

4.9

Railway maintenance equipment

Annual emissions from railway maintenance equipment in Maricopa County were calculated
using EPA’s NONROAD2008a model, as described in Section 4.1. Annual emissions for the
eight-hour ozone nonattainment area for this category were derived by applying the ratio of
population in the nonattainment area to Maricopa County totals, as recommended by EIIP
guidance (US EPA, 2002). See Section 1.5.1 for a discussion of the population data used.
County season-day emissions were calculated by multiplying Maricopa County ozone season
emissions (generated by the NONROAD2008a model) by the most conservative weekday/
weekend day activity allocation factor for railway maintenance equipment (0.1800000) listed in
Table 4.1–2, and dividing the product by the number of weeks (13) in the ozone season (US
EPA, 1999). Ozone nonattainment area season-day emissions were calculated based on the
population ratio as described above.
Table 4.9–1. Annual and season-day emissions from railway maintenance equipment.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
1.94
8.55
16.48
14.2
59.0
117.8
8-hr ozone NAA
1.96
8.64
16.67
14.4
59.7
119.1

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4.10

Recreational equipment

Annual emissions from recreational equipment in Maricopa County were calculated using EPA’s
NONROAD2008a model, as described in Section 4.1. Annual emissions for the eight-hour
ozone nonattainment area for this category were derived by applying the ratio of passive open
space and vacant land use in the nonattainment area to Maricopa County totals, as recommended
by EIIP guidance (US EPA, 2002). See Section 1.5.2 for a discussion of the land use data used.
County season-day emissions were calculated by multiplying Maricopa County ozone season
emissions (generated by the NONROAD2008a model) by the most conservative weekday/
weekend day activity allocation factor for recreational equipment (0.2222222) listed in Table
4.1–2, and dividing the product by the number of weeks (13) in the ozone season (US EPA,
1999). Ozone nonattainment area season-day emissions were calculated based on land use as
described above.
Table 4.10–1. Annual and season-day emissions from recreational equipment.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Geographic area
VOC
NOx
CO
VOC
NOx
CO
Maricopa County
1,518.97
66.10
6,373.46
17,804.4
679.3
74,424.8
8-hr ozone NAA
684.30
29.78
2,871.27
8,020.9
306.0
33,528.7

4.11

Aircraft

Emissions from aircraft at the largest airports in Maricopa County were estimated using the
Federal Aviation Administration’s Emissions and Dispersion Model (EDMS, v. 5.1.3). The
FAA EDMS model combines specified aircraft and activity levels with default emissions factors
in order to estimate annual emissions inventories for a specific airport. The model calculates
emissions of sulfur oxides (SOx), oxides of nitrogen (NOx), particulate matter (only for certain
categories of airframes and engines), carbon monoxide (CO), and hydrocarbons (HC). The
model can also estimate emissions from ground support equipment (GSE) and auxiliary power
units (APUs), using either default profiles or user-specified activity of these components.
The EDMS runs were executed by the Maricopa Association of Governments. The contact
person for the EDMS emission estimates is Adam Xia (602-254-6300).
Aircraft emissions were estimated for four aircraft categories:
1. Air carriers (abbreviated “AC”): Larger commercial aircraft with at least 60 seats or
18,000 lbs payload capacity, used for scheduled service to transport passengers and/or
freight;
2. Air taxis (“AT”): Smaller commercial turbine- or piston-powered aircraft with less than
60 seats or 18,000 lbs payload capacity;
3. General aviation (“GA”): Aircraft used on an unscheduled basis for recreational flying,
personal transportation, and other activities, including business travel; and
4. Military (“ML”): Aircraft used to support military operations.
First, three databases from FAA’s website provide the year 2011 aircraft activity, fleet mix for
the types of aircraft used, and hourly/weekly/monthly operational profiles for eight major
airports (Chandler Municipal, Falcon Field, Glendale Municipal, Phoenix Deer Valley, Phoenix
Goodyear, Phoenix-Mesa Gateway, Phoenix Sky Harbor, and Scottsdale airport). The three
databases are (1) FAA’s Air Traffic Activity Data System (ATADS) (FAA, 2012a); (2)

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Enhanced Traffic Management System Counts (ETMSC) database; and (3) FAA Aviation
Performance Metrics (APM) database (FAA, 2012b).
To supplement the FAA’s database for the eight major airports, MAG conducted a survey of six
additional small general aviation airports (Buckeye Municipal, Gila Bend Municipal, Pleasant
Valley, Sky Ranch at Carefree, Stellar Airpark, and Wickenburg Municipal airport) in Maricopa
County to gather the year 2008 data on aircraft activity (landings and take-offs or LTOs) and
estimated average taxi/idle times in 2009. The year 2008 data for these small general aviation
airports are assumed to be the same as those in year 2011, since no updated aircraft activity data
were available for the year 2011. Table 4.11–1 summarizes the activity level for each aircraft
category for each airport included in the modeling, and indicates the data sources for each
airport’s activity (reported number of operations) and fleet mix.
One required meteorological input for EDMS is an atmospheric mixing height, which is defined
as the height (or depth) above ground where relatively vigorous vertical mixing occurs due to
convection. To calculate the time-varying mixing height, the latest version of the EPA
AERMOD Meteorological Preprocessor (AERMET version 11059) was employed.

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Table 4.11–1. Annual airport operations (by aircraft category) and related data sources.
Airport
Operations Data
Fleet Mix Data
Aircraft
2011
Airport
Code
Source1
Source2
Type3
Operations
Buckeye Municipal
BXK
airnav.com
Generic GA profile
GA
53,070
Chandler Municipal
CHD
FAA/ATADS
FAA/ETMSC
AC
6
AT
2,168
GA
158,960
ML
456
Falcon Field
FFZ
FAA/ATADS
FAA/ETMSC
AC
4
AT
2,718
GA
214,486
ML
2,872
Gila Bend Municipal
E63
airnav.com
Generic GA profile
GA
3,536
Glendale Municipal
GEU
FAA/ATADS
FAA/ETMSC
AT
1,070
GA
85,998
ML
56
Luke Air Force Base
LUF
[2011 F-16 aircraft emissions were grown
based on the total number of F-16 operations in 2008 vs. 2011]
Phoenix Deer Valley
DVT
FAA/ATADS,
Survey response,
AC
2
Survey response
FAA/ETMSC
AT
3,832
GA
313,362 *
ML
248
Phoenix Goodyear
GYR
FAA/ATADS,
Survey response,
AC
146
Survey response
FAA/ETMSC
AT
312
GA
132,566 *
ML
5,582
Phoenix-Mesa Gateway
IWA
FAA/ATADS
FAA/ETMSC
AC
7,782
(formerly Williams
AT
9,176
Gateway)
GA
147,596
ML
6,646
Phoenix Sky Harbor
PHX
FAA/ATADS
FAA/ETMSC
AC
375,104
AT
63,796
GA
20,582
ML
2,506
Pleasant Valley
P48
airnav.com
Generic GA profile
GA
6,010
Scottsdale
SDL
FAA/ATADS
FAA/ETMSC
AC
6
AT
12,970
GA
127,924
ML
740
Sky Ranch at Carefree
18AZ
Survey response
Generic GA profile
GA
3,030
Stellar Airpark
P19
airnav.com
Generic GA profile
GA
39,056
Wickenburg Municipal
E25
Survey responses
Generic GA profile
GA
12,000
1. FAA/ATADS: Federal Aviation Administration’s Air Traffic Activity Data System (database); http://aspm.faa.gov.
2. FAA/ETMSC: Federal Aviation Administration’s Enhanced Traffic Management System Counts (database); http://aspm.faa.gov.
3. AC: Air Commercial; AT: Air Taxi; GA: General Aviation; ML: Military
* includes touch-and-go operations reported by airport.

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Both the 2011 hourly surface meteorological data and the 2011 one-minute Automated Surface
Observing System (ASOS) wind data from the National Weather Service (NWS) station at the
Phoenix Sky Harbor were used (NCDC, 2012). Full year upper air data in 2011 at the Tucson
station (station number 23160) were obtained from the National Oceanic and Atmospheric
Administration (NOAA) Earth System Research Laboratory (ESRL) Radiosonde Database
(ESRL, 2012). Ultimately, a single mixing height dataset in 2011 is used for all airports, except
Luke Air Force Base.
F-16 aircraft emissions estimates for Luke AFB for the year 2011 were scaled using a ratio of the
number of F-16s in 2011 to the number of F-16s in 2008. The emissions from “transient” aircraft
and on-wing engine testing in 2011 were assumed to be the same as those in 2008 based on input
from Luke AFB. Emissions from the military aircraft, “transient” aircraft, and on-wing engine
testing were summed into a single “ML” category for Luke AFB. This summation method is
consistent with that used in the 2008 PM10 Periodic Emissions Inventory Report for the Maricopa
County, Arizona, Nonattainment Area (MCAQD, 2011).
As with all other airports included in this inventory, emissions from ground support equipment
(GSE) at Luke AFB are addressed in Section 4.3, Airport ground support equipment and
auxiliary power units.
The following section describes how activity and emissions were estimated for a representative
airport, Falcon Field (FFZ). The FAA’s Air Traffic Activity System (ATADS, available at
www.aspm.faa.gov) provided data on 2011 activity by aircraft type; these results are contained in
Table 4.11–1. While ATADS reported a total of 214,486 general aviation operations at this
airport in 2011, further information on the aircraft types comprising this activity was needed.
The FAA’s Enhanced Traffic Management System Counts (ETMSC) database was used to
“grow” available aircraft-specific operational data as described below.
The ETMSC database on general aviation activity at Falcon Field airport (FFZ) in 2011 comprises 145 different aircraft types, totaling 3,731 operations (See Table 4.11–2). To simplify
modeling input requirements, this aircraft-specific activity data were ranked in order of
decreasing frequency. Activity data for the most frequently reported aircraft was then grown to
represent all general aviation activity. How this approach was applied for general aviation
activity at Falcon Field airport is shown in Table 4.11–2.
This approach of ranking reported activity, and then growing this subset of data, typically
resulted in a set of 10 to 30 aircraft types being modeled for each airport/aircraft class combination, representing 75 to 100% of all reported activity.
Ozone season-day emissions were calculated by dividing ozone season total emissions by 92 (the
number of days in the ozone season). Tables 4.11–3 and 4.11–4 list the total annual emissions
and season-day emissions, by airport and aircraft type for airports within and outside the eighthour ozone nonattainment area, respectively.
Tables 4.11–3 and 4.11–4 list the total annual and seasonal daily emissions by aircraft type, for
airports located inside and outside the eight-hour ozone nonattainment area, respectively.

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Table 4.11–2. Growing aircraft-specific activity for EDMS modeling input.

Rank
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

145

Aircraft Type
DA40 - Diamond Star DA40
BE9L - Beech King Air 90
P28R - Cherokee Arrow/Turbo
DA42 - Diamond Twin Star
BE20 - Beech 200 Super King
C25B - Cessna Citation CJ3
PC12 - Pilatus PC-12
C680 - Cessna Citation Sovereign
C441 - Cessna Conquest
B350 - Beech Super King Air 350
BE36 - Beech Bonanza 36
C172 - Cessna Skyhawk 172/Cutlass
CL60 - Bombardier Challenger 600/601/604
P46T - Piper Malibu Meridian
SR22 - Cirrus SR 22
P28A - Piper Cherokee
COL4 - Lancair LC-41 Columbia 400
TBM7 - Socata TBM-7
C182 - Cessna Skylane 182
C560 - Cessna Citation V/Ultra/Encore
M20P - Mooney M-20C Ranger
C210 - Cessna 210 Centurion
PAY2 - Piper Cheyenne 2
C525 - Cessna CitationJet/CJ1
BE35 - Beech Bonanza 35
C414 - Cessna Chancellor 414

T34P - Beech T-34B Mentor
Total:

2011 Ozone Precursor Emissions Inventory

ETMSCReported
Operations
536
350
250
163
130
118
110
103
99
86
84
83
70
68
67
62
52
50
48
47
46
44
40
38
37
37

1
3,731

75

% of Total
Reported
Operations
14.37%
9.38%
6.70%
4.37%
3.48%
3.16%
2.95%
2.76%
2.65%
2.31%
2.25%
2.22%
1.88%
1.82%
1.80%
1.66%
1.39%
1.34%
1.29%
1.26%
1.23%
1.18%
1.07%
1.02%
0.99%
0.99%

Cumulative
Percent
14.37%
23.75%
30.45%
34.82%
38.30%
41.46%
44.41%
47.17%
49.83%
52.13%
54.38%
56.61%
58.48%
60.31%
62.10%
63.76%
65.16%
66.50%
67.78%
69.04%
70.28%
71.46%
72.53%
73.55%
74.54%
75.53%


< 0.1%


100.00%

“Grown”
Operations
for EDMS
Modeling
40,796
26,640
19,028
12,406
9,894
8,982
8,372
7,840
7,536
6,546
6,394
6,318
5,328
5,176
5,100
4,718
3,958
3,806
3,654
3,578
3,502
3,348
3,044
2,892
2,816
2,814
(n/a)
214,486

February 2014

Table 4.11–3. Annual and season-day emissions, by aircraft type, for airports in the eight-hour ozone NAA.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Facility
Category
VOC
NOx
CO
VOC
NOx
CO
Buckeye Municipal
GA
5.46
2.69
211.10
26.7
11.3
1,172.3
Chandler Municipal
AC
0.02
0.00
0.04
0.4
0.0
0.8
AT
12.82
1.23
13.52
69.0
6.2
73.5
GA
127.56
14.18
1,329.77
629.0
62.4
7,236.4
ML
0.05
0.04
4.85
1.0
0.7
91.2
Total
140.45
15.45
1,348.17
699.3
69.2
7,401.9
Falcon Field
AC
0.01
0.00
0.02
0.2
0.0
0.4
AT
7.15
2.27
11.43
36.5
10.5
58.9
GA
103.99
31.13
1,170.22
484.1
126.8
6,009.2
ML
3.73
2.67
9.86
17.4
10.8
47.2
Total
114.88
36.07
1,191.53
538.1
148.1
6,115.7
Gila Bend Municipal
GA
0.36
0.18
14.29
1.8
0.9
71.0
Glendale Municipal
AT
3.67
0.88
5.17
15.6
3.6
22.3
GA
88.19
17.14
519.57
449.8
78.3
2,899.0
ML
0.05
0.01
0.14
0.1
0.0
0.4
Total
91.91
18.02
524.88
465.5
81.9
2,921.7
Luke Air Force Base
ML
154.13
347.83
601.72
844.5
1905.9
3,297.1
Phoenix Deer Valley
AC
0.00
0.00
0.00
0.0
0.0
0.0
AT
13.65
3.00
17.69
60.0
11.9
78.4
GA
93.34
52.99
2,382.41
525.7
278.4
15,313.0
ML
0.20
0.11
0.70
1.2
0.5
3.9
Total
107.19
56.10
2,400.81
586.9
290.8
15,395.2
Phoenix Goodyear
AC
0.12
0.40
0.92
0.5
1.6
4.4
AT
0.53
1.01
1.49
2.4
4.5
6.9
GA
43.39
13.80
1,224.97
234.8
62.9
7,380.0
ML
3.55
1.31
17.22
25.8
8.6
132.6
Total
47.60
16.52
1,244.61
263.6
77.6
7,523.9
Phoenix Sky Harbor
AC
266.99 1,823.15
1,893.82 1,414.1
8,732.7
9,944.4
Intl
AT
26.03
101.94
182.25
143.0
506.8
1,004.2
GA
42.59
7.41
140.93
198.2
31.1
702.2
ML
110.67
14.01
119.21
474.6
52.9
510.3
Total
446.28 1,946.50
2,336.21 2,230.0
9,323.5
12,161.0
Phoenix-Mesa
AC
2.25
27.46
33.32
12.3
138.9
179.9
Gateway Airport
AT
56.62
3.53
58.50
285.8
16.2
298.1
GA
146.94
9.81
713.40
666.4
39.8
3,512.1
ML
47.87
25.62
100.88
202.6
95.6
428.0
Total
253.68
66.42
906.11 1,167.2
290.5
4,418.1
Pleasant Valley
GA
0.21
1.61
2.69
1.1
7.6
14.6
Scottsdale
AC
0.02
0.00
0.04
0.0
0.0
0.0
AT
57.90
8.19
69.79
242.1
31.8
295.1
GA
274.72
67.08
650.51 1,271.3
283.6
3,082.5
ML
1.33
0.35
3.64
5.3
1.2
14.6
Total
333.96
75.63
723.98 1,518.7
316.5
3,392.1
Skyranch at Carefree
GA
1.63
0.58
16.13
4.9
1.6
55.5
Stellar Airpark
GA
7.69
2.38
197.13
37.5
9.9
1,053.5
8–hr ozone NAA total:
1,705.43 2,585.98 11,719.36 8,385.8
12,535.3
64,993.6
AC: Air Commercial; AT: Air Taxi; GA: General Aviation; ML: Military

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Table 4.11–4. Annual and season-day emissions, by aircraft type, for airports outside the eight-hour ozone
NAA.
Annual emissions
Season-day emissions
(tons/yr)
(lbs/day)
Facility
Category
VOC
NOx
CO
VOC
NOx
CO
Wickenburg Municipal
GA
13.90
2.84
62.02
65.2
12.9
331.8
Maricopa County total:
1,719.33 2,588.82 11,781.38
8,451. 0 12,548.2 65,325.4

4.12

Locomotives

Annual emissions from locomotives were calculated based on diesel fuel usage provided by
Burlington Northern/Santa Fe Railway (BNSF), Union Pacific Railway (UP) and Amtrak.
Railway operations from these companies fall into three categories: Class I haul lines,
yard/switching operations, and passenger trains. Annual emissions were calculated by
multiplying diesel fuel usage by the emission factors listed in Table 4.12–1 (US EPA, 2009).
Table 4.12–1. Emission factors for locomotives.
Emission factors (lbs/gal diesel)
Activity type
VOC
NOx
CO
Class I haul line
0.018
0.328
0.059
Yard/switch operations
0.032
0.517
0.060
Passenger trains
0.019
0.367
0.059

Fuel use reported by railroads and emission totals are summarized in Table 4.12–2.
Table 4.12–2. Fuel use and annual emissions from locomotives in Maricopa County.
Annual emissions (tons/yr)
Locomotive type
Diesel fuel used (gals)
VOC
NOx
CO
Class I haul line
7,706,715
68.74
1,263.13
231.75
Yard/switch operations
520,076
8.43
134.44
12.63
Passenger trains
46,301
0.43
8.51
1.36
Total:
8,273,092
77.60
1,406.08
245.74

Eight-hour ozone nonattainment area emissions were calculated by multiplying Maricopa County
emissions by the percentage of track miles inside the eight-hour ozone nonattainment area,
determined by GIS mapping. Results are shown in Table 4.12–3.
Table 4.12–3. Annual emissions from locomotives in the eight-hour ozone NAA.
Annual emissions (tons/yr)
Track in nonattainLocomotive type
ment area (%)
VOC
NOx
CO
Class I haul line
60.65%
41.69
766.09
140.56
Yard/switch operations
100.00%
8.43
134.44
12.63
Passenger trains
6.98%
0.03
0.59
0.09
Total:
50.15
901.12
153.29

Ozone season-day emissions for both the county and the eight-hour ozone nonattainment area
(shown in Table 4.12–4) were calculated by dividing annual totals by 365 days per year, as
locomotive activity is assumed to be uniform throughout the year.

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Table 4.12–4. Season-day emissions from locomotives in Maricopa County and the eight-hour ozone NAA.
Maricopa County
8-hr ozone NAA
Season-day emissions (lbs/day)
Locomotive type
VOC
NOx
CO
VOC
NOx
CO
Class I haul line
376.6
6,921.3
1,269.9
228.4
4,197.7
770.2
Yard/switch operations
46.2
736.7
69.2
46.2
736.7
69.2
Passenger trains
2.4
46.6
7.4
0.2
3.3
0.5
Total:
425.2
7,704.5
1,346.5
274.8
4,937.7
839.9

4.13

Summary of all nonroad mobile source emissions

Table 4.13–1 summarizes annual and season day emissions of VOC, NOx, and CO from nonroad
mobile sources in Maricopa County, respectively. Table 4.13–2 shows annual and season-day
emissions for these pollutants for the eight-hour ozone nonattainment area.
Table 4.13–1. Annual and season-day emissions from nonroad mobile sources in Maricopa County.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Category
VOC
NOx
CO
VOC
NOx
CO
Agricultural
38.53
330.49
303.71
329.3
2,762.6
2,584.4
Airport GSE & APUs
111.98
406.04
3,275.98
587.3
2,136.6
17,155.0
Commercial
1,924.41
1,361.42
30,224.21
14,537.1
8,334.7
203,404.4
Construction & mining
1,881.88
12,937.30
14,396.92
13,116.9
87,972.9
99,942.8
Industrial
341.25
1,839.35
7,140.99
2,212.6
11,763.4
46,138.5
Lawn & garden
4,913.96
866.64
54,798.41
51,990.4
6,998.4
523,235.5
Pleasure craft
530.39
96.56
1,249.66
11,527.0
1,996.8
26,738.3
Railway maintenance
1.94
8.55
16.48
14.2
59.0
117.8
Recreational
1,518.97
66.10
6,373.46
17,804.4
679.3
74,424.8
Aircraft
1,719.33
2,588.82
11,781.38
8,451. 0
12,548.2
65,325.4
Locomotives
77.60
1,406.08
245.74
425.2
7,704.5
1,346.5
Total:
13,060.24
21,907.35 129,806.94 120,995.4
142,956.4 1,060,413.4
Table 4.13–2. Annual and season-day emissions from nonroad mobile sources in the eight-hour ozone NAA.
Annual emissions (tons/yr)
Season-day emissions (lbs/day)
Category
VOC
NOx
CO
VOC
NOx
CO
Agricultural
22.52
193.22
177.56
192.5
1,615.1
1,510.9
Airport GSE & APUs
111.43
404.49
3,259.08
584.5
2,128.9
17,071.7
Commercial
1,916.15
1,355.57
30,094.46
14,474.7
8,299.0
202,531.2
Construction & mining
1,941.80
13,349.23
14,855.32
13,534.5
90,774.0
103,125.0
Industrial
339.78
1,831.45
7,110.33
2,203.1
11,712.9
45,940.4
Lawn & garden
4,970.15
876.55
55,425.05
52,584.9
7,078.4
529,218.9
Pleasure craft
530.39
96.56
1,249.66
11,527.0
1,996.8
26,738.3
Railway maintenance
1.96
8.64
16.67
14.4
59.7
119.1
Recreational
684.30
29.78
2,871.27
8,020.9
306.0
33,528.7
Aircraft
1,705.43
2,585.98
11,719.36
8,385.8
12,535.3
64,993.6
Locomotives
50.15
901.12
153.29
274.8
4,937.7
839.9
Total:
12,274.06
21,632.59 126,932.05 111,797.1
141,443.8
1,025,617.7

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4.14

Quality assurance procedures

Established procedures were used to check, and correct when necessary, the nonroad mobile
sources emissions estimates. All NONROAD model input and output files, and Excel spreadsheets used to calculate the emissions, were checked by personnel who were not involved in the
development of the modeling inputs/outputs and spreadsheets. In addition, the emissions
estimates were reviewed for reasonableness by external agency staff.

4.15

References

ENVIRON et al., 2003. Maricopa County 2002 Comprehensive Emission Inventory for the Cap
and Trade Oversight Committee, Final Report prepared for Arizona Department of
Environmental Quality, Oct. 9, 2003.
ESRL, 2012. NOAA/ESRL Radiosonde Database, (http://www.esrl.noaa.gov/raobs/).
FAA, 2012a. Air Traffic Activity System (ATADS),
(http://aspm.faa.gov/opsnet/sys/Airport.asp).
FAA, 2012b. Aviation Performance Metrics (APM),
(https://aspm.faa.gov/apm/sys/AnalysisAP.asp).
MCAQD, 2011. 2008 PM10Periodic Emissions Inventory for the Maricopa County,
Nonattainment Area.
NCDC, 2012. The 2008 1-miniute Automated Surface Observing System (ASOS) Data,
(ftp://ftp.ncdc.noaa.gov/pub/data/asos-onemin/)
US EPA, 2009. Emission Factors for Locomotives. Office of Transportation and Air Quality.
Rep. EPA420-F-09-025, April 2009. Internet address: http://www.epa.gov/otaq/regs/
nonroad/locomotv/420f09025.pdf.
US EPA, 2002. Geographic Allocation of State Level Nonroad Engine Population Data to the
County Level. EPA Office of Transportation and Air Quality, Rep. EPA420-P-02-009, July.
Internet address: http://www.epa.gov/otaq/models/nonrdmdl/p02009.pdf
US EPA, 1999. Weekday and Weekend Day Temporal Allocation of Activity in the
NONROAD Model. EPA Office of Transportation and Air Quality, Rep. EPA420-P-99-033,
March. Internet address: http://www.epa.gov/otaq/models/nonrdmdl/p99033.pdf

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5.
5.1

Onroad Mobile Sources
Introduction

Onroad mobile source emissions for ozone precursors, such as volatile organic compounds
(VOCs), nitrogen oxides (NOx), and carbon monoxide (CO), have been calculated for the eighthour ozone nonattainment area (NAA) and Maricopa County for the 2011 Periodic Emissions
Inventory (PEI).
Motor Vehicle Emission Simulator (MOVES2010b) is the latest model developed by the U.S.
Environmental Protection Agency (EPA) for the purpose of estimating onroad and off-network
motor vehicle emission factors.
The MOVES2010b modeling accounted for the oxygenated fuel and the Arizona Vehicle
Inspection/Maintenance (I/M) programs applied in Maricopa County in 2011. The fuel use
assumptions, including oxygen content and Reid Vapor Pressure (RVP), were derived from the
2011 fuel inspection results provided by the Arizona Department of Weights and Measures.
In order to develop the 2011 onroad mobile source emissions, the 2011 vehicle miles traveled
(VMT) estimates by facility type and road type were derived from the 2011 Highway Performance Monitoring System (HPMS) data provided by the Arizona Department of Transportation
(ADOT). The distribution of VMT by vehicle type is based on the July 2011 vehicle registration
data for Maricopa County provided by ADOT. The VMT by vehicle type was provided as local
input data for MOVES2010b to produce onroad emissions.
The main references for preparing the onroad mobile source portion of the 2011 emissions
inventory were:
• Emission Inventory Requirements for Ozone State Implementation Plans (US EPA, 1991);
• Procedures for Emission Inventory Preparation Volume IV: Mobile Sources (US EPA,
1992a);
• Quality Review Guidelines for 1990 Base Year Emission Inventories (US EPA, 1992b);
• User’s Guide for the SMOKE-MOVES Integration Tool (US EPA, 2010);
• Motor Vehicle Emission Simulator (MOVES) - User Guide Version, MOVES2010b (US
EPA, 2012a);
• Policy Guidance on the Use of MOVES2010 and Subsequent Minor Revisions for State
Implementation Plan Development, Transportation Conformity, and Other Purposes (US
EPA, 2012b); and
• Using MOVES to Prepare Emissions Inventories in State Implementation Plans and
Transportation Conformity: Technical Guidance for MOVES2010, 2010a and 2010b (US
EPA, 2012c).

5.2

Onroad emissions

Vehicle exhaust and evaporative emission factors for VOC, NOx, and CO were calculated using
MOVES2010b. The MOVES2010b runs were executed by MAG. The contact person for the
MOVES2010b emission estimates is Ieesuck Jung (602-254-6300).

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5.2.1

MOVES2010b model

The emissions were calculated using MOVES2010b. MOVES2010b is EPA’s state-of-the-art
emissions modeling tool, which replaces EPA’s previous mobile source emissions model,
MOBILE6.2. MOVES2010b is intended for official use to estimate national, state, and county
level inventories of criteria air pollutants from highway vehicles. The user of MOVES2010b is
allowed to specify vehicle types, time periods, geographical areas, pollutants, vehicle operating
characteristics, and road types for a particular scenario to be modeled by creating a Run
Specification (RunSpec).
In order to calculate vehicle emissions for the calendar year 2011, MOVES2010b was executed
using local input data for each month of the year and each geographical area (the eight-hour
ozone nonattainment area and Maricopa County). Each scenario was created using the County
Domain/Scale and the Inventory Calculation Type. The specific MOVES2010b model RunSpec
and RunSpec summaries are described in Appendix C.

5.2.2

MOVES2010b local input data

Compared with MOBILE6.2, MOVES2010b requires a more detailed level of local data,
including fuel data, I/M program, meteorological data, vehicle population, source type age
distribution, annual VMT, monthly/daily/hourly VMT fractions, road type distribution, average
speed distribution, ramp fraction, and Alternative Vehicle and Fuel Technologies (AVFT)
strategy.

5.2.2.1

Fuel data

Regarding the fuel local input data, MOVES2010b provides two MOVES tables, which are
[fuelsupply] and [fuelformulation]. The fuel data for each month were derived from the 2011
fuel inspection results in Maricopa County provided by the Arizona Department of Weights and
Measures. The 2011 fuel inspection results reflected the committed control measure – California
Phase 2 Reformulated Gasoline with (1) 3.5% Oxygen Content from November 1 through March
31 (MAG, 2003) and (2) 7 psi from May 1 through September 30 (MAG, 2009). The fuel data
for Maricopa County were also applied to the eight-hour ozone nonattainment area. The specific
MOVES tables for fuel data are presented in Appendix C.

5.2.2.2

I/M programs

MOVES2010b has an [IMCoverage] table for I/M programs; this table was prepared using
MOBILE6.2 input. This table reflects the actual proportions of vehicles subject to the specified
levels of inspection. The term “I/M vehicles” denotes vehicles which are required to undergo an
emission test and/or inspection under the Vehicle Inspection/Maintenance Program. It is
important to note that participation in the I/M program is required for all vehicles registered in
Area A, with the exception of certain model years and vehicle classes. However, it is assumed
that 91.6 percent of the vehicles operating within the eight-hour ozone nonattainment area and
Maricopa County participate in the I/M program and the remaining 8.4 percent do not participate
in the program. These percentages reflect the control measures “Tougher Enforcement of
Vehicle Registration and Emissions Test Compliance” and “Expansion of Area A Boundaries,”
described in the MAG Eight-Hour Ozone Redesignation Request and Maintenance Plan for the

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Maricopa Nonattainment Area (MAG, 2009). This percentage is directly applied to the
Compliance Factor in the [IMCoverage] table. The same I/M programs were applied for the
eight-hour ozone nonattainment area and Maricopa County. The specific MOVES table for I/M
programs is presented in Appendix C.

5.2.2.3

Meteorological data

MOVES2010b requires hourly temperature and relative humidity data by specific month of the
year. Meteorological data for the Phoenix Sky Harbor International Airport in 2011 were
obtained from the National Climatic Data Center (http://www.ncdc.noaa.gov/). The same hourly
average temperature and relative humidity data for each month were applied for the eight-hour
ozone nonattainment area and Maricopa County. The specific MOVES table [ZoneMonthHour]
for meteorological data is presented in Appendix C.
5.2.2.4

Vehicle population

In order to capture start, evaporative, and extended idle emissions, MOVES2010b introduced a
new mobile source emission category called off-network emissions. In MOVES2010b, these
off-network emissions are directly determined by population of vehicles in an area. The vehicle
population in Maricopa County was obtained from the July 2011 vehicle registration data
provided by ADOT. The vehicle population data were allocated to the 28 MOBILE6.2 vehicle
types based on MOBILE6.2 VMT fractions for 2011. Then, the vehicle population data
allocated to the 28 MOBILE6.2 vehicle types were assigned to the 13 MOVES source types
using the match-up table (Table A.1) in EPA’s technical guidance (EPA, 2012c). The vehicle
population in the eight-hour ozone nonattainment area was estimated by applying the population
ratio of the two geographical areas to the vehicle population in Maricopa County. The specific
MOVES table [SourceTypeYear] for vehicle population is presented in Appendix C.

5.2.2.5

Source type age distribution

MOVES2010b categorizes vehicles according to vehicle classes and model years. The source
type age distribution was prepared using EPA’s data converter that takes the registration
distribution input file created for MOBILE6.2 and converts it to the appropriate MOVES age
distribution input table [SourceTypeAgeDistribution]. The same source type age distribution
was applied for the eight-hour ozone nonattainment area and Maricopa County. The specific
MOVES table for source type age distribution is presented in Appendix C.

5.2.2.6

Annual VMT

The 2011 daily VMTs by facility type were used to estimate onroad exhaust and evaporative
emissions. The 2011 VMT distributions by facility type for the eight-hour ozone nonattainment
area and Maricopa County were obtained from the 2011 Maricopa County Estimates of Daily
Vehicle Travel by Highway Functional Classification provided by ADOT. The 2011 VMT
distributions were multiplied by the 2011 HPMS VMT for the eight-hour ozone nonattainment
area and Maricopa County. The resultant VMT estimates by facility type for the eight-hour
ozone nonattainment area and Maricopa County are shown in Table 5.2–1.
Since MOVES2010b requires annual VMTs by HPMS vehicle type as a local input, the daily
VMTs by HPMS vehicle type were derived from the 2011 traffic assignment data provided by

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the MAG transportation modeling group in May 2011 and the daily VMTs by facility type and
the estimated percentages of daily vehicle travel by vehicle type and highway functional classification provided by ADOT. Then, the daily VMTs by HPMS vehicle type were multiplied by
365 days to obtain the annual VMTs by HPMS vehicle type. The specific MOVES table
[HPMSvTypeYear] for annual VMT is presented in Appendix C.
2011 daily VMT by facility type (annual average daily traffic).
8-hr ozone NAA
Facility Type
(thousand miles/day)
Interstate
1,833
Other Principal Arterial
897
Minor Arterial
166
Major Collector
734
Minor Collector
95
Local
149
Interstate
10,906
Other Freeway/Expressway
19,263
Other Principal Arterial
21,474
Minor Arterial
13,767
Collector
4,680
Local
9,910
Total:
83,874
Urban

Rural

Table 5.2–1.

5.2.2.7

Maricopa County
(thousand miles/day)
3,247
1,589
293
1,301
168
264
11,182
19,750
22,017
14,115
4,799
10,160
88,885

Road type distribution

MOVES2010b requires the distribution of VMTs by road type as a local input. The road type
VMT distribution by HPMS vehicle type was derived from the 2011 traffic assignment data and
the daily VMTs by HPMS vehicle type mentioned in the previous section. As suggested in
EPA’s technical guidance (US EPA, 2010), the same road type distribution by HPMS vehicle
type was used for all MOVES source types within an HPMS vehicle class. The specific MOVES
table [RoadTypeDistribution] for road type distribution is presented in Appendix C.

5.2.2.8

VMT fraction

Since VMT varies by month, day of week, and hour, MOVES2010b requires month/day/hour
VMT fractions as a local input in order to derive hourly VMT for each weekday/weekend and
month from the annual VMT. The month/day/hour VMT fractions were developed from data
recorded by continuous traffic counters on freeways (ADOT Freeway Management System) and
arterials (Phoenix Automatic Traffic Recorders) during the year 2007. The specific MOVES
tables [MonthVMTFraction], [DayVMTFraction], and [HourVMTFraction] for VMT fractions
are presented in Appendix C.

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5.2.2.9

Average speed distribution

In MOVES2010b, vehicle power, speed, and acceleration have a significant effect on vehicle
emissions for all pollutants. MOVES2010b estimates those emission effects by assigning
activity to operating mode distributions, which are determined by the distribution of vehicle
hours traveled (VHT) by average speed. As recommended in EPA’s technical guidance (US
EPA, 2010), estimates of local average speeds were developed by post-processing the output
from the 2011 traffic assignment data provided by the MAG transportation modeling group in
May 2011. To develop the average speed distribution, VHTs in sixteen speed bins were
accumulated separately for each hour of the day, source type, and road type in Maricopa County.
Then, the average speed distribution was calculated by normalizing VHTs in sixteen speed bins
for each hour of the day, source type, and road type. The same methodology was applied to
develop the speed estimates for the eight-hour ozone nonattainment area. The specific MOVES
table [AvgSpeedDistribution] for the average speed distribution is presented in Appendix C.

5.2.2.10 Ramp fraction
MOVES2010b requires the ramp fraction, which represents the percent of VHT on ramps, on
both rural restricted roads (road type 2) and urban restricted roads (road type 4). The fraction of
VHT on ramps was derived by dividing the total VHTs on ramps by the total VHTs for each
restricted road type. Those VHTs were obtained from the 2011 traffic assignment data provided
by the MAG transportation modeling group in May 2011. The specific MOVES table
[RoadType] for ramp fractions is presented in Appendix C.

5.2.2.11 AVFT strategy
MOVES2010b allows users to modify the fuel engine fraction using different fuels and
technologies in each model year in order to reflect the local situation. The fleet information for
transit buses for model years 1997 through 2011 was provided by Valley Metro and used to
prepare the AVFT input file. Since the fleet data are available only for specific model years,
MOVES2010b default values were obtained from the [fuelEngFraction] table in the MOVES
default database and used for the rest of the model years. The specific MOVES table [AVFT]
for AVFT strategy is presented in Appendix C.

5.2.2.12 Stage II refueling control programs
As an option, MOVES2010b allows to apply Stage refueling emission control programs. Since
1994, the Stage II refueling program has been implemented in Area A as one of committed
control measures (MAG, 2009). The program efficiency of 46 percent for the refueling
displacement vapor losses and the refueling spillage losses are assumed for LDGVs, LDGTs, and
HDGVs (Yantorno, 2007). The same program efficiency was applied to the eight-hour ozone
nonattainment area and Maricopa County. The specific MOVES table [CountyYear] for Stage II
refueling control programs is presented in Appendix C.

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5.2.3

MOVES2010b outputs

MOVES2010b was executed with the RunSpec files described in Appendix C to obtain exhaust
and evaporative emissions for VOC, NOx, and CO. These values were obtained for the
following categories by month:
•

•

•

Vehicle classes: light duty gasoline vehicles (LDGV), light duty gasoline trucks 1 and 2
(LDGT1), light duty gasoline trucks 3 and 4 (LDGT2), heavy duty gasoline vehicles 2B thru
8B and gasoline buses (HDGV), motorcycles (MC), light duty diesel vehicles (LDDV), light
duty diesel trucks 1 thru 4 (LDDT), heavy duty diesel vehicles class 2B (2BHDDV), heavy
duty diesel vehicles classes 3, 4, and 5 (LHDDV), heavy duty diesel vehicles classes 6 and 7
(MHDDV), heavy duty diesel vehicles classes 8A and 8B (HHDDV), and heavy duty diesel
buses (BUSES)
Facility types: rural interstate, rural principal arterial, rural minor arterial, rural major
collector, rural minor collector, rural local, urban interstate, urban freeway/expressway,
urban principal arterial, urban minor arterial, urban collector, urban local, and off-network,
which was newly added in MOVES2010b
Days: weekdays and weekend days

5.2.4

MOVES2010b emission estimates

MOVES2010b was used to generate onroad emissions by vehicle class, facility type, weekdays/
weekend days, and month. By specifying the output time aggregate level as month, the model
produces monthly emissions including weekday and weekend emissions for a given month. The
annual emissions were calculated by aggregating monthly onroad emissions derived by
MOVES2010b. The ozone season-day emissions were calculated by dividing the three-month
peak ozone season emissions from July through September by 92 days.
Tables 5.2–2 and 5.2–3 show the calculated annual and ozone season-day VOC, NOx, and CO
emissions by facility type and vehicle class in the eight-hour ozone nonattainment area and
Maricopa County, respectively.

2011 Ozone Precursor Emissions Inventory

86

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Table 5.2–2. Annual and ozone season-day onroad mobile source emissions by facility type and vehicle class
in the eight-hour ozone NAA.
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Vehicle
Facility
Type
Class
SCC
VOC
NOx
CO
VOC
NOx
CO
LDGV
2201001110
28.13
110.70
758.49
163.3
604.9
5,232.5
LDGT1 2201020110
51.89
243.02
1,356.15
303.6
1,314.9
9,185.7
LDGT2 2201040110
26.73
125.19
698.62
156.4
677.4
4,732.0
HDGV
2201070110
13.02
72.48
319.37
74.6
369.0
1,921.9
MC
2201080110
6.40
4.22
69.24
34.8
21.0
368.5
LDDV
2230001110
0.05
0.84
0.40
0.3
4.6
2.7
Rural
Interstate LDDT
2230060110
1.62
13.96
8.85
9.2
77.5
60.3
2BHDDV 2230071110
0.71
6.18
3.89
4.0
34.4
26.5
LHDDV 2230072110
3.85
32.92
20.87
21.8
182.4
141.9
MHDDV 2230073110
10.86
164.12
45.16
57.2
807.2
237.2
HHDDV 2230074110
23.31
570.60
116.92
123.1
2,806.7
614.3
BUSES 2230075110
1.20
23.68
6.14
6.3
116.5
32.3
LDGV
2201001130
20.73
70.04
387.68
119.5
403.2
2,614.6
LDGT1 2201020130
18.86
76.50
363.07
109.6
434.4
2,408.3
LDGT2 2201040130
9.72
39.41
187.04
56.5
223.8
1,240.7
HDGV
2201070130
3.53
17.03
71.63
20.3
90.3
435.2
MC
2201080130
11.93
6.20
105.39
64.6
31.0
561.0
Rural
LDDV
2230001130
0.04
0.63
0.26
0.2
3.7
1.7
Principal
LDDT
2230060130
0.66
5.13
3.60
3.7
29.9
24.0
Arterial
2BHDDV 2230071130
0.29
2.28
1.58
1.6
13.3
10.6
LHDDV 2230072130
1.57
12.04
8.49
8.8
70.1
56.7
MHDDV 2230073130
2.27
27.40
8.99
11.9
135.0
47.2
HHDDV 2230074130
3.98
80.40
19.42
21.0
396.0
102.0
BUSES 2230075130
0.40
6.97
1.97
2.1
34.3
10.3
LDGV
2201001150
20.14
68.06
376.72
116.1
391.8
2,540.7
LDGT1 2201020150
18.33
74.33
352.81
106.5
422.1
2,340.3
LDGT2 2201040150
9.44
38.29
181.75
54.9
217.4
1,205.6
HDGV
2201070150
3.43
16.55
69.61
19.7
87.8
422.9
MC
2201080150
11.59
6.03
102.42
62.8
30.1
545.1
Rural
LDDV
2230001150
0.04
0.61
0.26
0.2
3.6
1.7
Minor
LDDT
2230060150
0.64
4.98
3.49
3.6
29.0
23.4
Arterial
2BHDDV 2230071150
0.28
2.21
1.54
1.6
12.9
10.3
LHDDV 2230072150
1.53
11.70
8.25
8.6
68.1
55.1
MHDDV 2230073150
2.20
26.63
8.73
11.6
131.1
45.9
HHDDV 2230074150
3.87
78.12
18.87
20.4
384.8
99.1
BUSES 2230075150
0.39
6.77
1.91
2.1
33.4
10.0
LDGV
2201001170
3.75
12.69
70.22
21.6
73.0
473.5
LDGT1 2201020170
3.42
13.86
65.76
19.9
78.7
436.2
LDGT2 2201040170
1.76
7.14
33.88
10.2
40.5
224.7
HDGV
2201070170
0.64
3.08
12.97
3.7
16.4
78.8
MC
2201080170
2.16
1.12
19.09
11.7
5.6
101.6
Rural
LDDV
2230001170
0.01
0.11
0.05
0.0
0.7
0.3
Major
LDDT
2230060170
0.12
0.93
0.65
0.7
5.4
4.4
Collector
2BHDDV 2230071170
0.05
0.41
0.29
0.3
2.4
1.9
LHDDV 2230072170
0.28
2.18
1.54
1.6
12.7
10.3
MHDDV 2230073170
0.41
4.96
1.63
2.2
24.4
8.5
HHDDV 2230074170
0.72
14.56
3.52
3.8
71.7
18.5
BUSES 2230075170
0.07
1.26
0.36
0.4
6.2
1.9

2011 Ozone Precursor Emissions Inventory

87

February 2014

Table 5.2–2.
Annual and ozone season-day onroad mobile source emissions by facility type and vehicle
class in the eight-hour ozone NAA (continued).
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Facility
Vehicle
Type
Class
SCC
VOC
NOx
CO
VOC
NOx
CO
LDGV
2201001190
0.87
2.94
16.26
5.0
16.9
109.6
LDGT1 2201020190
0.79
3.21
15.22
4.6
18.2
101.0
LDGT2 2201040190
0.41
1.65
7.84
2.4
9.4
52.0
HDGV
2201070190
0.15
0.71
3.00
0.9
3.8
18.2
MC
2201080190
0.50
0.26
4.42
2.7
1.3
23.5
Rural
LDDV
2230001190
0.00
0.03
0.01
0.0
0.2
0.1
Minor
LDDT
2230060190
0.03
0.21
0.15
0.2
1.3
1.0
Collector
2BHDDV 2230071190
0.01
0.10
0.07
0.1
0.6
0.4
LHDDV 2230072190
0.07
0.50
0.36
0.4
2.9
2.4
MHDDV 2230073190
0.10
1.15
0.38
0.5
5.7
2.0
HHDDV 2230074190
0.17
3.37
0.81
0.9
16.6
4.3
BUSES 2230075190
0.02
0.29
0.08
0.1
1.4
0.4
LDGV
2201001210
9.08
30.68
169.82
52.3
176.6
1,145.3
LDGT1 2201020210
8.26
33.51
159.04
48.0
190.3
1,055.0
LDGT2 2201040210
4.26
17.26
81.93
24.7
98.0
543.5
HDGV
2201070210
1.55
7.46
31.38
8.9
39.6
190.6
MC
2201080210
5.22
2.72
46.17
28.3
13.6
245.7
Rural
LDDV
2230001210
0.02
0.27
0.12
0.1
1.6
0.8
LDDT
2230060210
0.29
2.25
1.58
1.6
13.1
10.5
Local
2BHDDV 2230071210
0.13
1.00
0.69
0.7
5.8
4.6
LHDDV 2230072210
0.69
5.27
3.72
3.9
30.7
24.8
MHDDV 2230073210
0.99
12.00
3.94
5.2
59.1
20.7
HHDDV 2230074210
1.74
35.22
8.51
9.2
173.5
44.7
BUSES 2230075210
0.18
3.05
0.86
0.9
15.0
4.5
LDGV
2201001230
315.59
1,122.85
8,542.12
1,828.0
6,198.7
58,613.4
LDGT1 2201020230
389.33
1,602.91
9,784.95
2,271.6
8,744.6
65,893.5
LDGT2 2201040230
200.56
825.74
5,040.73
1,170.2
4,504.8
33,945.1
HDGV
2201070230
125.37
594.77
2,799.95
712.5
3,011.8
16,433.1
MC
2201080230
128.88
73.37
1,238.82
698.9
365.4
6,593.8
2230001230
0.54
8.81
4.59
3.0
49.4
30.9
Urban LDDV
Interstate LDDT
2230060230
13.00
102.99
71.45
73.3
575.8
483.3
2BHDDV 2230071230
5.68
45.66
31.36
32.0
255.6
212.6
LHDDV 2230072230
31.01
242.58
169.13
174.7
1,354.0
1,141.6
MHDDV 2230073230
93.83
1,316.73
378.86
494.4
6,475.6
1,990.4
HHDDV 2230074230
173.92
3,747.08
854.68
918.0
18,429.4
4,490.3
BUSES 2230075230
14.35
272.67
73.30
75.6
1,341.1
385.1
LDGV
2201001250
331.11
1,178.07
8,962.22
1,917.9
6,503.5
61,496.0
LDGT1 2201020250
408.48
1,681.74 10,266.18
2,383.3
9,174.7
69,134.0
LDGT2 2201040250
210.43
866.35
5,288.63
1,227.8
4,726.3
35,614.5
HDGV
2201070250
131.53
624.02
2,937.66
747.5
3,160.0
17,241.3
Urban
MC
2201080250
135.22
76.98
1,299.75
733.2
383.3
6,918.1
Freeway
LDDV
2230001250
0.56
9.25
4.82
3.2
51.9
32.4
And
LDDT
2230060250
13.64
108.06
74.96
76.9
604.1
507.1
Express2BHDDV 2230071250
5.96
47.91
32.90
33.6
268.2
223.0
way
LHDDV 2230072250
32.53
254.51
177.45
183.3
1,420.6
1,197.8
MHDDV 2230073250
98.44
1,381.48
397.49
518.7
6,794.1
2,088.3
HHDDV 2230074250
182.48
3,931.36
896.71
963.2
19,335.8
4,711.2
BUSES 2230075250
15.05
286.08
76.90
79.3
1,407.1
404.0

2011 Ozone Precursor Emissions Inventory

88

February 2014

Table 5.2–2.
Annual and ozone season-day onroad mobile source emissions by facility type and vehicle
class in the eight-hour ozone NAA (continued).
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Facility
Vehicle
Type
Class
SCC
VOC
NOx
CO
VOC
NOx
CO
LDGV
2201001270
867.65
2,461.71 14,822.61
4,980.2
14,626.5
98,722.0
LDGT1 2201020270
723.35
2,268.85 11,877.79
4,187.4
13,305.9
77,666.8
LDGT2 2201040270
372.63
1,168.80
6,118.85
2,157.1
6,854.6
40,010.1
HDGV
2201070270
159.42
526.27
2,610.59
907.1
2,833.3
15,528.2
MC
2201080270
364.35
120.97
2,387.52
1,968.4
603.7
12,707.9
Urban
LDDV
2230001270
1.49
24.89
10.67
8.3
150.4
69.4
Principal
LDDT
2230060270
25.26
203.10
142.81
141.2
1,229.5
939.0
Arterial
2BHDDV 2230071270
11.03
90.29
62.60
61.7
547.5
412.4
LHDDV 2230072270
60.30
478.09
338.58
336.9
2,889.2
2,221.8
MHDDV 2230073270
99.13
1,116.86
362.02
522.0
5,499.7
1,901.7
HHDDV 2230074270
167.56
2,988.26
778.64
883.9
14,715.7
4,090.3
BUSES 2230075270
14.31
229.46
66.76
75.4
1,130.0
350.7
LDGV
2201001290
441.02
1,251.27
7,534.27
2,531.4
7,434.6
50,180.0
LDGT1 2201020290
367.67
1,153.25
6,037.43
2,128.4
6,763.4
39,477.6
LDGT2 2201040290
189.41
594.10
3,110.19
1,096.5
3,484.2
20,337.0
HDGV
2201070290
81.03
267.50
1,326.95
461.1
1,440.2
7,892.9
MC
2201080290
185.20
61.49
1,213.57
1,000.5
306.8
6,459.4
Urban
LDDV
2230001290
0.76
12.65
5.42
4.2
76.4
35.3
Minor
LDDT
2230060290
12.84
103.24
72.59
71.8
625.0
477.3
Arterial
2BHDDV 2230071290
5.61
45.89
31.82
31.4
278.3
209.6
LHDDV 2230072290
30.65
243.01
172.10
171.2
1,468.6
1,129.3
MHDDV 2230073290
50.39
567.70
184.01
265.3
2,795.5
966.6
HHDDV 2230074290
85.17
1,518.92
395.78
449.3
7,479.9
2,079.1
BUSES 2230075290
7.27
116.63
33.93
38.3
574.4
178.3
LDGV
2201001310
86.13
244.37
1,471.39
494.4
1,451.9
9,799.8
LDGT1 2201020310
71.80
225.22
1,179.07
415.7
1,320.8
7,709.7
LDGT2 2201040310
36.99
116.02
607.40
214.1
680.4
3,971.7
HDGV
2201070310
15.82
52.24
259.14
90.0
281.3
1,541.4
MC
2201080310
36.17
12.01
237.00
195.4
59.9
1,261.5
2230001310
0.15
2.47
1.06
0.8
14.9
6.9
Urban LDDV
Collector LDDT
2230060310
2.51
20.16
14.18
14.0
122.1
93.2
2BHDDV 2230071310
1.10
8.96
6.21
6.1
54.4
40.9
LHDDV 2230072310
5.99
47.46
33.61
33.4
286.8
220.5
MHDDV 2230073310
9.84
110.87
35.94
51.8
545.9
188.8
HHDDV 2230074310
16.63
296.63
77.29
87.7
1,460.8
406.0
BUSES 2230075310
1.42
22.78
6.63
7.5
112.2
34.8
LDGV
2201001330
415.75
1,179.56
7,102.48
2,386.3
7,008.5
47,304.1
LDGT1 2201020330
346.60
1,087.15
5,691.42
2,006.4
6,375.7
37,215.2
LDGT2 2201040330
178.55
560.05
2,931.94
1,033.6
3,284.5
19,171.4
HDGV
2201070330
76.39
252.17
1,250.90
434.7
1,357.6
7,440.6
MC
2201080330
174.58
57.96
1,144.02
943.2
289.2
6,089.2
Urban LDDV
2230001330
0.71
11.93
5.11
4.0
72.0
33.3
LDDT
2230060330
12.11
97.32
68.43
67.7
589.1
449.9
Local
2BHDDV 2230071330
5.29
43.26
30.00
29.6
262.4
197.6
LHDDV 2230072330
28.89
229.09
162.23
161.4
1,384.4
1,064.6
MHDDV 2230073330
47.50
535.16
173.46
250.1
2,635.3
911.2
HHDDV 2230074330
80.29
1,431.87
373.10
423.5
7,051.3
1,960.0
BUSES 2230075330
6.86
109.95
31.99
36.1
541.4
168.1

2011 Ozone Precursor Emissions Inventory

89

February 2014

Table 5.2–2.
Annual and ozone season-day onroad mobile source emissions by facility type and vehicle
class in the eight-hour ozone NAA (continued).
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Vehicle
Facility
Type
Class
SCC
VOC
NOx
CO
VOC
NOx
CO
220100100
LDGV
9,402.26
4,424.20 43,163.97
61,052.9
23,759.3 183,525.8
LDGT1 220102000
2,588.87
1,468.89 19,360.70
16,455.7
7,981.9
96,124.0
LDGT2 220104000
1,333.66
756.70
9,973.69
8,477.2
4,111.9
49,518.4
220107000
HDGV
372.55
217.03
4,052.96
2,338.4
1,182.2
20,958.3
220108000
MC
547.02
2.43
83.60
4,271.9
9.8
208.1
223000100
LDDV
6.48
27.63
25.05
22.4
120.8
131.4
OffNetwork LDDT
223006000
3.32
26.59
16.91
7.6
120.8
87.9
2BHDDV 223007100
1.42
11.66
7.35
3.2
52.9
38.2
LHDDV 223007200
7.79
62.35
39.03
17.8
283.1
202.6
MHDDV 223007300
24.50
144.11
189.20
112.6
621.4
1,016.4
223007400
HHDDV
418.93
2,672.32
1,119.58
2,179.6
12,161.2
5,908.3
BUSES 223007500
1.63
4.45
96.15
0.1
0.0
522.5

2011 Ozone Precursor Emissions Inventory

90

February 2014

Table 5.2–3. Annual and ozone season-day onroad mobile source emissions by facility type and vehicle class
in Maricopa County.
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Facility
Vehicle
Type
Class
SCC
VOC
NOx
CO
VOC
NOx
CO
LDGV
2201001110
41.81
166.74
1,147.40
242.9
911.2
7,919.6
LDGT1
2201020110
100.56
475.25
2,658.13
588.5
2,571.6
18,011.7
LDGT2
2201040110
51.80
244.83
1,369.34
303.2
1,324.8
9,278.8
HDGV
2201070110
21.52
118.92
538.20
123.8
610.0
3,301.0
MC
2201080110
11.22
7.49
122.76
61.0
37.3
653.4
LDDV
2230001110
0.07
1.25
0.60
0.4
6.9
4.1
Rural
Interstate LDDT
2230060110
3.14
27.11
17.13
17.7
150.4
116.7
2BHDDV 2230071110
1.37
12.00
7.53
7.8
66.7
51.4
LHDDV 2230072110
7.47
63.90
40.44
42.2
354.2
275.0
MHDDV 2230073110
17.23
281.49
73.31
90.8
1,384.5
385.2
HHDDV 2230074110
45.10
1,129.87
228.30
238.2
5,557.7
1,199.4
BUSES
2230075110
1.71
34.23
8.79
9.0
168.4
46.2
LDGV
2201001130
33.65
113.61
629.45
193.9
654.0
4,244.8
LDGT1
2201020130
36.88
149.19
708.92
214.4
847.2
4,701.6
LDGT2
2201040130
19.00
76.86
365.20
110.4
436.4
2,422.1
HDGV
2201070130
6.69
31.89
135.07
38.5
169.7
824.3
MC
2201080130
21.15
10.98
186.63
114.5
54.8
993.4
Rural
LDDV
2230001130
0.06
1.02
0.43
0.3
5.9
2.8
Principal
LDDT
2230060130
1.30
10.05
7.05
7.3
58.6
47.1
Arterial
2BHDDV 2230071130
0.57
4.46
3.10
3.2
26.1
20.7
LHDDV 2230072130
3.08
23.59
16.65
17.3
137.3
111.1
MHDDV 2230073130
4.17
51.42
16.61
22.0
253.2
87.3
HHDDV 2230074130
7.84
159.49
38.37
41.4
785.5
201.6
BUSES
2230075130
0.72
12.48
3.53
3.8
61.5
18.5
LDGV
2201001150
32.70
110.40
611.65
188.5
635.5
4,124.9
LDGT1
2201020150
35.84
144.97
688.88
208.3
823.2
4,568.7
LDGT2
2201040150
18.46
74.68
354.88
107.3
424.1
2,353.6
HDGV
2201070150
6.50
30.98
131.25
37.4
164.9
801.0
MC
2201080150
20.55
10.67
181.35
111.3
53.2
965.3
Rural
LDDV
2230001150
0.06
0.99
0.42
0.3
5.8
2.8
Minor
LDDT
2230060150
1.26
9.76
6.85
7.1
56.9
45.8
Arterial
2BHDDV 2230071150
0.55
4.34
3.01
3.1
25.3
20.2
LHDDV 2230072150
2.99
22.92
16.18
16.8
133.4
107.9
MHDDV 2230073150
4.05
49.96
16.14
21.3
246.1
84.8
HHDDV 2230074150
7.62
154.98
37.28
40.2
763.3
195.9
BUSES
2230075150
0.70
12.13
3.43
3.7
59.8
18.0
LDGV
2201001170
6.09
20.58
114.00
35.1
118.4
768.8
LDGT1
2201020170
6.68
27.02
128.40
38.8
153.4
851.6
LDGT2
2201040170
3.44
13.92
66.14
20.0
79.0
438.7
HDGV
2201070170
1.21
5.78
24.46
7.0
30.7
149.3
MC
2201080170
3.83
1.99
33.80
20.7
9.9
179.9
Rural
LDDV
2230001170
0.01
0.18
0.08
0.1
1.1
0.5
Major
LDDT
2230060170
0.23
1.82
1.28
1.3
10.6
8.5
Collector
2BHDDV 2230071170
0.10
0.81
0.56
0.6
4.7
3.8
LHDDV 2230072170
0.56
4.27
3.01
3.1
24.9
20.1
MHDDV 2230073170
0.76
9.31
3.01
4.0
45.9
15.8
HHDDV 2230074170
1.42
28.89
6.95
7.5
142.3
36.5
BUSES
2230075170
0.13
2.26
0.64
0.7
11.1
3.4

2011 Ozone Precursor Emissions Inventory

91

February 2014

Table 5.2–3.
Annual and ozone season-day onroad mobile source emissions by facility type and vehicle
class in Maricopa County (continued).
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Facility
Vehicle
Type
Class
SCC
VOC
NOx
CO
VOC
NOx
CO
LDGV
2201001190
1.41
4.76
26.39
8.1
27.4
178.0
LDGT1
2201020190
1.55
6.26
29.73
9.0
35.5
197.1
LDGT2
2201040190
0.80
3.22
15.31
4.6
18.3
101.6
HDGV
2201070190
0.28
1.34
5.66
1.6
7.1
34.6
MC
2201080190
0.89
0.46
7.83
4.8
2.3
41.7
Rural
LDDV
2230001190
0.00
0.04
0.02
0.0
0.2
0.1
Minor
LDDT
2230060190
0.05
0.42
0.30
0.3
2.5
2.0
Collector
2BHDDV 2230071190
0.02
0.19
0.13
0.1
1.1
0.9
LHDDV 2230072190
0.13
0.99
0.70
0.7
5.8
4.7
MHDDV 2230073190
0.17
2.16
0.70
0.9
10.6
3.7
HHDDV 2230074190
0.33
6.69
1.61
1.7
32.9
8.5
BUSES
2230075190
0.03
0.52
0.15
0.2
2.6
0.8
LDGV
2201001210
14.74
49.77
275.73
85.0
286.5
1,859.5
LDGT1
2201020210
16.15
65.35
310.54
93.9
371.1
2,059.6
LDGT2
2201040210
8.32
33.67
159.98
48.4
191.2
1,061.0
HDGV
2201070210
2.93
13.97
59.17
16.8
74.3
361.1
MC
2201080210
9.27
4.81
81.75
50.2
24.0
435.1
Rural
LDDV
2230001210
0.03
0.45
0.19
0.1
2.6
1.2
LDDT
2230060210
0.57
4.40
3.09
3.2
25.7
20.6
Local
2BHDDV 2230071210
0.25
1.96
1.36
1.4
11.4
9.1
LHDDV 2230072210
1.35
10.33
7.29
7.6
60.1
48.7
MHDDV 2230073210
1.83
22.52
7.28
9.6
110.9
38.2
HHDDV 2230074210
3.43
69.87
16.81
18.1
344.1
88.3
BUSES
2230075210
0.31
5.47
1.55
1.7
26.9
8.1
LDGV
2201001230
321.75
1,147.02
8,736.08
1,863.8
6,328.9
59,952.7
LDGT1
2201020230
398.95
1,645.13 10,050.63
2,327.9
8,971.4
67,690.5
LDGT2
2201040230
205.52
847.49
5,177.59
1,199.2
4,621.6
34,870.8
HDGV
2201070230
129.18
613.34
2,887.04
734.1
3,105.0
16,939.0
MC
2201080230
131.85
75.30
1,270.33
715.0
375.0
6,761.5
2230001230
0.55
8.99
4.69
3.1
50.4
31.5
Urban LDDV
Interstate LDDT
2230060230
13.33
105.63
73.26
75.1
590.3
495.6
2BHDDV 2230071230
5.82
46.83
32.15
32.9
262.1
218.0
LHDDV 2230072230
31.79
248.83
173.43
179.1
1,388.4
1,170.7
MHDDV 2230073230
96.93
1,361.53
391.49
510.7
6,696.0
2,056.8
HHDDV 2230074230
179.94
3,879.33
884.45
949.8
19,079.9
4,646.8
BUSES
2230075230
14.81
281.59
75.68
78.0
1,385.0
397.6
LDGV
2201001250
337.58
1,203.43
9,165.73
1,955.5
6,640.2
62,901.2
LDGT1
2201020250
418.57
1,726.04 10,544.93
2,442.3
9,412.6
71,019.7
LDGT2
2201040250
215.63
889.17
5,432.23
1,258.2
4,848.9
36,585.8
HDGV
2201070250
135.53
643.51
3,029.03
770.2
3,257.7
17,772.0
Urban
MC
2201080250
138.33
79.00
1,332.81
750.1
393.4
7,094.0
Freeway
LDDV
2230001250
0.58
9.43
4.92
3.2
52.9
33.1
and
LDDT
2230060250
13.98
110.83
76.86
78.8
619.4
519.9
Express2BHDDV 2230071250
6.11
49.13
33.73
34.5
275.0
228.7
way
LHDDV 2230072250
33.36
261.06
181.96
187.9
1,456.7
1,228.3
MHDDV 2230073250
101.70
1,428.49
410.75
535.8
7,025.3
2,158.0
HHDDV 2230074250
188.78
4,070.12
927.95
996.5
20,018.3
4,875.3
BUSES
2230075250
15.54
295.43
79.40
81.9
1,453.1
417.2

2011 Ozone Precursor Emissions Inventory

92

February 2014

Table 5.2–3.
Annual and ozone season-day onroad mobile source emissions by facility type and vehicle
class in Maricopa County (continued).
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Facility
Vehicle
Type
Class
SCC
VOC
NOx
CO
VOC
NOx
CO
LDGV
2201001270
887.40
2,518.28 15,177.93
5,093.7
14,946.0 101,100.4
LDGT1
2201020270
740.73
2,323.35 12,173.14
4,288.1
13,611.0
79,607.5
LDGT2
2201040270
381.59
1,196.87
6,271.01
2,209.0
7,011.7
41,009.9
HDGV
2201070270
163.87
541.20
2,685.49
932.4
2,910.9
15,968.7
MC
2201080270
372.91
123.95
2,445.17
2,014.6
618.5
13,014.7
Urban
LDDV
2230001270
1.53
25.46
10.92
8.5
153.6
71.0
Principal
LDDT
2230060270
25.87
207.85
146.31
144.6
1,256.8
962.1
Arterial
2BHDDV 2230071270
11.30
92.40
64.13
63.2
559.6
422.5
LHDDV 2230072270
61.76
489.28
346.88
345.0
2,953.3
2,276.6
MHDDV 2230073270
102.21
1,151.68
373.34
538.2
5,671.2
1,961.2
HHDDV 2230074270
172.44
3,077.56
801.69
909.6
15,155.6
4,211.4
BUSES
2230075270
14.77
236.81
68.89
77.8
1,166.2
361.9
LDGV
2201001290
451.06
1,280.03
7,714.88
2,589.1
7,597.0
51,389.0
LDGT1
2201020290
376.51
1,180.95
6,187.56
2,179.6
6,918.4
40,464.2
LDGT2
2201040290
193.96
608.37
3,187.53
1,122.8
3,564.0
20,845.2
HDGV
2201070290
83.30
275.09
1,365.02
473.9
1,479.6
8,116.9
MC
2201080290
189.55
63.00
1,242.87
1,024.0
314.4
6,615.3
Urban
LDDV
2230001290
0.78
12.94
5.55
4.3
78.1
36.1
Minor
LDDT
2230060290
13.15
105.65
74.37
73.5
638.8
489.0
Arterial
2BHDDV 2230071290
5.74
46.97
32.60
32.1
284.5
214.8
LHDDV 2230072290
31.39
248.70
176.32
175.4
1,501.2
1,157.2
MHDDV 2230073290
51.95
585.39
189.77
273.6
2,882.6
996.9
HHDDV 2230074290
87.65
1,564.31
407.50
462.3
7,703.5
2,140.7
BUSES
2230075290
7.51
120.37
35.02
39.5
592.8
184.0
LDGV
2201001310
88.09
249.98
1,506.66
505.6
1,483.6
10,035.9
LDGT1
2201020310
73.53
230.63
1,208.39
425.7
1,351.1
7,902.4
LDGT2
2201040310
37.88
118.81
622.50
219.3
696.0
4,070.9
HDGV
2201070310
16.27
53.72
266.58
92.6
289.0
1,585.2
MC
2201080310
37.02
12.30
242.72
200.0
61.4
1,291.9
2230001310
0.15
2.53
1.08
0.8
15.2
7.1
Urban LDDV
Collector LDDT
2230060310
2.57
20.63
14.52
14.4
124.8
95.5
2BHDDV 2230071310
1.12
9.17
6.37
6.3
55.6
41.9
LHDDV 2230072310
6.13
48.57
34.43
34.3
293.2
226.0
MHDDV 2230073310
10.15
114.32
37.06
53.4
563.0
194.7
HHDDV 2230074310
17.12
305.50
79.58
90.3
1,504.4
418.1
BUSES
2230075310
1.47
23.51
6.84
7.7
115.8
35.9
LDGV
2201001330
425.21
1,206.67
7,272.74
2,440.7
7,161.6
48,443.8
LDGT1
2201020330
354.93
1,113.27
5,832.94
2,054.7
6,521.9
38,145.1
LDGT2
2201040330
182.84
573.50
3,004.85
1,058.5
3,359.8
19,650.5
HDGV
2201070330
78.52
259.32
1,286.79
446.8
1,394.8
7,651.6
MC
2201080330
178.68
59.39
1,171.64
965.3
296.4
6,236.2
Urban LDDV
2230001330
0.73
12.20
5.23
4.1
73.6
34.0
Local
LDDT
2230060330
12.40
99.59
70.11
69.3
602.2
461.0
2BHDDV 2230071330
5.41
44.27
30.73
30.3
268.2
202.5
LHDDV 2230072330
29.59
234.45
166.21
165.3
1,415.1
1,090.9
MHDDV 2230073330
48.97
551.84
178.89
257.9
2,717.4
939.8
HHDDV 2230074330
82.63
1,474.66
384.14
435.8
7,262.0
2,018.0
BUSES
2230075330
7.08
113.47
33.01
37.3
558.8
173.4

2011 Ozone Precursor Emissions Inventory

93

February 2014

Table 5.2–3.
Annual and ozone season-day onroad mobile source emissions by facility type and vehicle
class in Maricopa County (continued).
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Facility
Vehicle
Type
Class
SCC
VOC
NOx
CO
VOC
NOx
CO
LDGV
2201001000
9,343.57
4,398.52 42,913.45
60,666.2
23,621.4 182,460.8
LDGT1 2201020000
2,565.00
1,457.16 19,206.53
16,298.8
7,918.2
95,359.0
LDGT2 2201040000
1,321.36
750.66
9,894.27
8,396.3
4,079.0
49,124.2
HDGV
2201070000
369.74
215.64
4,033.93
2,320.0
1,174.6
20,862.9
MC
2201080000
539.75
2.40
82.65
4,215.5
9.7
205.7
LDDV
2230001000
6.44
27.47
24.90
22.3
120.1
130.6
OffNetwork LDDT
2230060000
3.29
26.39
16.79
7.6
119.8
87.2
2BHDDV 2230071000
1.41
11.57
7.30
3.2
52.5
37.9
LHDDV 2230072000
7.74
61.88
38.74
17.6
281.0
201.1
MHDDV 2230073000
26.03
153.86
192.53
120.6
666.0
1,033.9
HHDDV 2230074000
448.68
2,863.21
1,186.93
2,336.0
13,033.7
6,262.1
BUSES 2230075000
1.62
4.42
95.35
0.1
0.0
518.1

2011 Ozone Precursor Emissions Inventory

94

February 2014

5.3

Summary of ozone precursor emissions from onroad mobile sources

Tables 5.3–1 and 5.3–2 show the annual and ozone season-day onroad mobile source emissions
by facility type in the eight-hour ozone nonattainment area and Maricopa County, respectively.
Table 5.3–1.
ozone NAA.

Annual and ozone season-day onroad mobile source emissions by facility type in the eight-hour

Urban

Rural

Facility Type
Interstate
Principal Arterial
Minor Arterial
Major Collector
Minor Collector
Local
Interstate
Freeway/Expressway
Principal Arterial
Minor Arterial
Collector
Local
Off-network
Total

Table 5.3–2.
County.

Rural

Season-day emissions
(lbs/day)
VOC
NOx
CO
954.6
7,016.5
22,555.8
419.8
1,865.0
7,512.3
408.1
1,812.1
7,300.1
76.1
337.7
1,360.6
17.8
78.3
314.9
183.8
816.9
3,290.7
8,452.2
51,306.2
190,213.1
8,867.9
53,829.6
199,567.7
16,229.6
64,386.0
254,620.3
8,249.4
32,727.3
129,422.4
1,610.9
6,391.4
25,275.2
7,776.6
30,851.4
122,005.2
94,939.4
50,405.3
358,241.9
148,186.2
301,823.7 1,321,680.2

Annual and ozone season-day onroad mobile source emissions by facility type in Maricopa

Facility Type
Interstate
Principal Arterial
Minor Arterial
Major Collector
Minor Collector
Local
Interstate
Freeway/Expressway
Principal Arterial
Minor Arterial
Collector
Local
Off-network
Total
Urban

Annual emissions
(tons/year)
VOC
NOx
CO
167.77
1,367.91
3,404.10
73.98
344.03
1,159.12
71.88
334.28
1,126.36
13.39
62.30
209.96
3.12
14.42
48.60
32.41
150.69
507.76
1,492.06
9,956.16
28,989.94
1,565.43
10,445.81
30,415.67
2,866.48
11,677.55
39,579.44
1,457.02
5,935.65
20,118.06
284.55
1,159.19
3,928.92
1,373.52
5,595.47
18,965.08
14,708.43
9,818.36
78,128.19
24,110.04
56,861.82 226,581.20

Annual emissions
(tons/year)
VOC
NOx
CO
303.00
2,563.08
6,211.93
135.11
645.04
2,111.01
131.28
626.78
2,051.32
24.46
116.83
382.33
5.66
27.05
88.53
59.18
282.57
924.74
1,530.42
10,261.01
29,756.82
1,605.69
10,765.64
31,220.30
2,936.38
11,984.69
40,564.90
1,492.55
6,091.77
20,618.99
291.50
1,189.67
4,026.73
1,406.99
5,742.63
19,437.28
14,634.63
9,973.18
77,693.37
24,556.85
60,269.94 235,088.25

Season-day emissions
(lbs/day)
VOC
NOx
CO
1,725.5
13,143.7
41,242.5
767.0
3,490.2
13,675.3
745.3
3,391.5
13,288.9
138.9
632.0
2,476.9
32.0
146.3
573.7
336.0
1,528.8
5,990.5
8,668.7
52,854.0
195,231.5
9,094.9
55,453.5
204,833.2
16,624.7
66,014.4
260,967.9
8,450.1
33,554.9
132,649.3
1,650.4
6,553.1
25,905.5
7,966.0
31,631.8
125,046.8
94,404.2
51,076.0
356,283.5
150,603.7
319,470.2 1,378,165.5

Tables 5.3–3 and 5.3–4 present the same emissions by vehicle class in the eight-hour ozone
nonattainment area and Maricopa County, respectively.

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Table 5.3–3. Annual and ozone season-day onroad mobile source emissions by vehicle class in the eighthour ozone NAA.
Annual emissions (tons/year)
Season-day emissions (lbs/day)
Vehicle Class
VOC
NOx
CO
VOC
NOx
CO
LDGV
11,942.21
12,157.14
93,378.25
75,668.9
68,649.4
521,757.3
LDGT1
4,997.65
9,932.44
66,509.59
30,440.7
56,125.6
408,747.3
LDGT2
2,574.55
5,116.70
34,262.49
15,681.6
28,913.2
210,566.7
HDGV
984.43
2,651.31
15,746.11
5,819.4
13,873.3
90,103.4
MC
1,609.22
425.76
7,951.01
10,016.4
2,120.7
42,083.4
LDDV
10.85
100.12
57.82
46.7
550.2
346.9
LDDT
86.04
688.92
479.65
471.5
4,022.6
3,161.3
2BHDDV
37.56
305.81
210.30
205.9
1,788.7
1,388.6
LHDDV
205.15
1,621.70
1,135.36
1,123.8
9,453.6
7,469.4
MHDDV
440.46
5,409.17
1,789.81
2,303.5
26,530.0
9,424.9
HHDDV
1,158.77
17,368.71
4,663.83
6,083.6
84,483.4
24,528.1
BUSES
63.15
1,084.04
396.98
324.2
5,313.0
2,102.9
Total
24,110.04
56,861.82
226,581.20
148,186.2
301,823.7 1,321,680.2
Table 5.3–4.
County.

Annual and ozone season-day onroad mobile source emissions by vehicle class in Maricopa

Vehicle Class
LDGV
LDGT1
LDGT2
HDGV
MC
LDDV
LDDT
2BHDDV
LHDDV
MHDDV
HHDDV
BUSES
Total

Annual emissions (tons/year)
VOC
NOx
CO
11,985.06
12,469.79
95,292.09
5,125.88
10,544.57
69,728.72
2,640.60
5,432.05
35,920.83
1,015.54
2,804.70
16,447.69
1,655.00
451.74
8,402.31
10.99
102.95
59.03
91.14
730.13
507.92
39.77
324.10
222.70
217.34
1,718.77
1,202.24
466.15
5,763.97
1,890.88
1,242.98
18,784.48
5,001.56
66.40
1,142.69
412.28
24,556.85
60,269.94
235,088.25

Season-day emissions (lbs/day)
VOC
NOx
CO
75,868.1
70,411.7
535,379.4
31,170.0
59,506.6
430,578.7
16,057.2
30,654.8
221,813.1
5,995.1
14,668.3
94,367.6
10,247.0
2,250.3
44,488.1
47.5
566.4
354.9
500.2
4,256.8
3,351.0
218.7
1,892.8
1,472.4
1,192.3
10,004.6
7,918.3
2,438.8
28,272.7
9,956.3
6,527.4
91,383.2
26,302.6
341.4
5,602.0
2,183.1
150,603.7
319,470.2 1,378,165.5

Table 5.3–5 summarizes annual and ozone season-day emissions for VOC, NOx, and CO from
all onroad mobile sources in the eight-hour ozone nonattainment area and Maricopa County in
2011.
Table 5.3–5. Annual and ozone season-day emissions from all onroad mobile sources in the eight-hour
ozone NAA and Maricopa County.
Annual emissions (tons/year)
Season-day emissions (lbs/day)
VOC
NOx
CO
VOC
NOx
CO
8-hr ozone NAA
24,110.04
56,861.82
226,581.20
148,186.2
301,823.7
1,321,680.2
Maricopa County
24,556.85
60,269.94
235,088.25
150,603.7
319,470.2
1,378,165.5

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5.4

Quality assurance process

5.4.1

VMT estimates

Normal quality assurance procedures, including automated and manual consistency checks, were
conducted by MAG in developing the 2011 TransCAD traffic assignment network used to
generate the VMT data. The VMT estimates using the MAG travel demand model have been
validated by the MAG transportation modeling group.

5.4.2

Emission estimates

The quality assurance process performed on the MOVES2010b analyses included accuracy,
completeness, and reasonableness checks. For accuracy and completeness, all calculations were
checked by an independent reviewer. Any errors found were corrected and the corrections were
then rechecked by the reviewer.

5.4.3

Draft emissions inventory for ozone precursors

The draft onroad mobile source portion of the 2011 periodic emissions inventory for ozone
precursors was reviewed using published EPA quality review guidelines for base year emissions
inventories (EPA, 1992b). The procedure review (Levels I, II, and III) included checks for
completeness, consistency, and the correct use of appropriate procedures.

5.5

References

MAG, 2003. Carbon Monoxide Redesignation Request and Maintenance Plan for the Maricopa
County Nonattainment Area, May 2003.
MAG, 2009. MAG Eight-Hour Ozone Redesignation Request and Maintenance Plan for the
Maricopa Nonattainment Area, February 2009.
US EPA, 1991. Emission Inventory Requirements for Ozone State Implementation Plans, EPA450/4-91-010, March 1991.
US EPA, 1992a. Procedures for Emission Inventory Preparation Volume IV: Mobile Sources,
EPA-450/4-81-026d (Revised), 1992.
US EPA, 1992b. Quality Review Guidelines for 1990 Base Year Emission Inventories, EPA454/R-92-007, July 1992.
US EPA, 2010. User’s Guide for the SMOKE-MOVES Integration Tool, EPA Contract EP-D07-102 (WA 3-03), July 2010.
US EPA, 2012a. Motor Vehicle Emission Simulator (MOVES) - User Guide Version,
MOVES2010b, EPA-420-B-12-001, March 2012.
US EPA, 2012b. Policy Guidance on the Use of MOVES2010 and Subsequent Minor Revisions
for State Implementation Plan Development, Transportation Conformity, and Other
Purposes, EPA-420-B-12-010, April 2012.
US EPA, 2012c. Using MOVES to Prepare Emission Inventories in State Implementation Plans
and Transportation Conformity: Technical Guidance for MOVES2010, 2010a and 2010b,
EPA-420-B-12-028, April 2012.
Yantorno, D., 2007. E-mail correspondence with Mr. Duane Yantorno at the Arizona
Department of Weights and Measures, February 16, 2007.

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6.
6.1

Biogenic Sources
Introduction

Biogenic emissions have been estimated for the 2011 Periodic Emissions Inventory for ozone
precursors in Maricopa County (9,223 square miles) and the eight-hour ozone nonattainment
area (NAA) (5,025 square miles). The Model of Emissions of Gases and Aerosols from Nature
(MEGAN) has been used to estimate the biogenic emissions. MEGAN is a state-of-the-art
biogenic emissions model developed by the National Center for Atmospheric Research (NCAR).
Some important corrections and improvements were made in the latest version of MEGAN2.1
(Guenther et al, 2012; Jiang et al, 2011) compared to previous versions (Guenther, 2006a, 2006b,
and 2007; Guenther et al, 2006). The most important change is that higher temporal and spatial
resolution of land use and land cover data for MEGAN input has become available. MEGAN,
with the vegetation data released in 2011, was applied to compute biogenic emissions in
Maricopa County and the eight-hour ozone nonattainment area. Estimated emissions for volatile
organic compounds (VOC), carbon monoxide (CO), and nitrogen oxides (NOx) are included in
this biogenic emissions inventory. The MEGAN runs were executed by the Maricopa
Association of Governments. The contact person for the MEGAN emission estimates is Feng Liu
(602-254-6300).

6.2

Modeling domain

As a numerical model, the MEGAN inputs and outputs are given in user-defined twodimensional grid cells. To develop biogenic emissions for the 2011 Periodic Emissions Inventory for ozone precursors, the 4-km modeling domain that covers the entire area of Maricopa
County were employed. The target area is the eight-hour ozone nonattainment area within the
County. The definition of the domain in the Lambert Conformal Conic Projection (LCP)
coordinate system is presented in Table 6.2–1. Since MEGAN estimates biogenic emissions for
the entire modeling domain rather than specific areas, additional input files, masking areas
covered by the eight-hour ozone nonattainment area and Maricopa County, were developed by
applying Geographic Information Systems (GIS) to calculate emissions for those two target
areas. In order to represent the target area, the masking file assigns 1.0 for the grid cells fully
covered by the target area, a fractional value for grid cells partially covered by the target area,
and 0.0 for grid cells outside the target area. As shown in Figure 6.3–1, biogenic emissions for
the eight-hour ozone nonattainment area and Maricopa County were extracted from MEGAN
runs for the masked grid cells in the 4-km modeling domain.
Table 6.2–1. Two modeling domains defined in the LCP coordinate system.
Grid Horizontal
Grid Size
LCP Range (km)
Resolution
(–131.4713, –129.4593) to
4-km
65 by 65
(127.9845, 131.1945)

6.3

Target Area
Eight-hour ozone NAA and
Maricopa County

Input data

To calculate biogenic emissions using MEGAN, the following gridded input files for land cover
and meteorological data were prepared:

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EFMAP_LAI file: This file provides emission factors (EF) for 20 MEGAN species
including NOx, CO and VOC, and 8-day average leaf index (LAI) for year 2011in each
grid cell.
2. PFTF file: This input file gives percentage of four plant function types (PFT) including
broadleaf trees (BT), needle leaf trees (NT), grass and crops (HB) and shrubs (SB) for
each model domain grid location.
3. METCRO2D file: This file contains meteorological parameters including temperature,
short wave radiation, wind speed, humidity and soil moisture for each grid.
1.

Figure 6.3–1. The masked grid cells in the 4-km modeling domain.

6.3.1

Land cover data

The land cover data, including the 8-day averaged LAI input files for North America for years
2003 to 2011 based on NASA MODIS data, monthly mean PFT, and EF, are provided by the
EFMAP_LAI and PFTF files. These input data were derived from the MEGAN land cover
database available at the resolution of 30 seconds latitude by 30 seconds longitude (1x1 km2) in
netCDF format (http://acd.ucar.edu/~guenther/MEGAN/MEGAN.htm).

6.3.2

Weather data

The weather data used by MEGAN are temperature, downward short wave radiation, wind
speed, humidity and soil moisture. The Measurement and Instrumentation Data Center (MIDC)
collects irradiance and meteorological data from nation-wide stations. One of those stations is
located in northern Phoenix (33.83°N, 112.17°W, see red star in Figure 6.3–1) and is operated by
the National Renewable Energy Laboratory (NREL). The archived hourly temperature, wind
speed, humidity and radiation data from this site are available to the public. Monthly mean
2011 Ozone Precursor Emissions Inventory

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diurnal cycles of the weather parameters were calculated based on hourly data for the year 2011,
and a netCDF file representing 24-hour data for each month was prepared for MEGAN inputs.
Biogenic emissions of VOC, NOx, and CO are first governed by temperature and then highly
dependent on downward short wave radiation. Figure 6.3–2 shows monthly mean (left panel)
and annual mean diurnal cycle (right panel) of temperature. Figure 6.3–3 illustrates monthly
averaged and annual mean diurnal cycle of short wave radiation. The maximum monthly
temperature was recorded in August, while the highest radiation was observed in June. The
maximum monthly temperature appeared two months later than the highest radiation. The peak
hourly temperature was observed around 4:00 – 6:00 pm and lagged three hours behind the peak
radiation. The delay is due to the fact that heating of the air occurs not from the sun’s rays, but
from heating of the earth and infrared radiation leaving the ground in the form of heat. As a
result, maximum seasonal emission rates appear in the summer. The highest hourly emission
rates take place in the afternoon because the emission rates are positively related to both
temperature and short wave radiation (Guenther et al., 2006, 2012). The maximum monthly
VOC, NOx, and CO biogenic emission rates would be expected to occur in the same month as
the maximum temperature.

Figure 6.3–2. Monthly averaged temperature (left panel) and annual mean diurnal cycle of temperature
(right panel) in 2011.

Figure 6.3–3. Monthly averaged radiation (left panel) and annual mean diurnal cycle of radiation (right
panel) in 2011.

6.4

Emission estimation

MEGAN runs for the modeling domain provide hourly emission outputs for the year 2011.
Figure 6.4–1 illustrates isoprene (ISOP), a major contributor to VOCs, and NOx emission rates
simulated by MEGAN at 17:00 MST in August, 2011. The high ISOP emissions occur in
northeastern portion. The high NOx emissions appear at the central part of Maricopa County and
southeastern portion. Daily mean emissions for each month in 2011 are derived by using the
hourly outputs for each month. In addition, monthly total emissions were obtained by
multiplying the daily mean emissions for each month by the number of days in the month. The
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daily mean emissions for the 12 months in 2011 are shown in Tables 6.4–1 and 6.4–2 for the
eight-hour ozone nonattainment area and Maricopa County, respectively.

Figure 6.4–1. Estimated emission rates of ISOP (left panel) and NOx (right panel) at 17:00 MST, August 2011
by MEGAN model.

Table 6.4–1.
Month
January
February
March
April
May
June
July
August
September
October
November
December

Daily mean biogenic emissions for each month in the eight-hour ozone NAA.
VOC
NOx
CO
kg/day
lbs/day
kg/day
lbs/day
kg/day
15,264.7
33,652.9
210.5
464.1
2,950.2
35,341.7
77,915.0
351.6
775.1
5,262.4
73,407.4
161,835.4
796.7
1,756.4
10,665.2
97,461.1
214,864.7
910.5
2,007.3
11,966.6
139,906.1
308,439.8
1,113.0
2,453.7
14,937.6
313,026.5
690,104.5
2,308.4
5,089.1
27,998.8
314,669.0
693,725.6
2,855.0
6,294.2
29,982.6
326,736.8
720,330.5
3,415.3
7,529.4
32,557.0
208,257.6
459,128.9
2,209.6
4,871.3
22,623.7
86,989.6
191,779.0
994.4
2,192.3
11,389.6
20,395.5
44,964.3
309.9
683.2
3,687.5
11,230.4
24,758.8
171.8
378.8
2,295.1

2011 Ozone Precursor Emissions Inventory

102

lbs/day
6,504.1
11,601.6
23,512.7
26,381.8
32,931.7
61,726.7
66,100.2
71,775.8
49,876.7
25,109.7
8,129.5
5,059.8

February 2014

Table 6.4–2.
Month
January
February
March
April
May
June
July
August
September
October
November
December

Daily mean biogenic emissions for each month in Maricopa County.
VOC
NOx
kg/day
lbs/day
kg/day
lbs/day
23,123.3
50,978.1
316.3
697.3
53,015.2
116,878.4
524.0
1,155.2
104,165.5
229,645.3
1,152.6
2,541.0
139,181.0
306,841.2
1,330.8
2,933.9
200,913.3
442,937.5
1,641.2
3,618.2
451,990.3
996,466.9
3,432.5
7,567.4
451,204.3
994,734.0
4,207.9
9,276.8
467,398.8
1,030,436.7
5,031.7
11,093.0
300,464.1
662,409.2
3,278.2
7,227.2
129,711.0
285,963.5
1,506.4
3,321.0
30,063.3
66,278.2
462.5
1,019.6
16,413.2
36,184.9
252.8
557.3

CO
kg/day
5,654.4
9,971.5
19,383.1
22,591.4
28,869.2
55,292.2
58,566.5
63,445.8
44,256.1
23,713.3
7,101.2
4,255.2

lbs/day
12,465.8
21,983.4
42,732.4
49,805.5
63,645.6
121,898.3
129,116.9
139,873.9
97,567.9
52,278.8
15,655.4
9,381.1

Monthly mean emissions for Maricopa County and the eight-hour ozone nonattainment area are
illustrated in Figure 6.4–2. Monthly emission values for the eight-hour ozone nonattainment area
and Maricopa County are presented in Tables 6.4–3 and 6.4–4, respectively. It can be seen that
the maximum monthly VOC, NOx, and CO emissions took place in August, because monthly
mean temperatures reached the maximum levels in this month.

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Figure 6.4–2. Monthly emissions of VOC (top), NOx (middle) and CO (bottom) in Maricopa County (pink
solid line, abbreviated as “County”) and the eight-hour ozone NAA (blue solid line, abbreviated as “O3
NAA”).

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Table 6.4–3.
Month
January
February
March
April
May
June
July
August
September
October
November
December

Table 6.4–4.
Month
January
February
March
April
May
June
July
August
September
October
November
December

6.5

Monthly biogenic emissions in the eight-hour ozone NAA.
VOC
NOx
Metric tons
Short tons
Metric tons
Short tons
473.21
521.62
6.53
7.19
989.57
1,090.81
9.84
10.85
2,275.63
2,508.45
24.70
27.22
2,923.83
3,222.97
27.32
30.11
4,337.09
4,780.82
34.50
38.03
9,390.80
10,351.57
69.25
76.34
9,754.74
10,752.75
88.51
97.56
10,128.84
11,165.12
105.87
116.71
6,247.73
6,886.93
66.29
73.07
2,696.68
2,972.57
30.83
33.98
611.87
674.46
9.30
10.25
348.14
383.76
5.33
5.87

CO
Metric tons
91.46
147.35
330.62
359.00
463.07
839.96
929.46
1,009.27
678.71
353.08
110.63
71.15

Short tons
100.81
162.42
364.45
395.73
510.44
925.90
1,024.55
1,112.53
748.15
389.20
121.94
78.43

Monthly biogenic emissions in Maricopa County.
VOC
NOx
Metric tons
Short tons
Metric tons
Short tons
716.82
790.16
9.81
10.81
1,484.43
1,636.30
14.67
16.17
3,229.13
3,559.50
35.73
39.39
4,175.43
4,602.62
39.92
44.01
6,228.31
6,865.53
50.88
56.08
13,559.71
14,947.00
102.98
113.51
13,987.33
15,418.38
130.44
143.79
14,489.36
15,971.77
155.98
171.94
9,013.92
9,936.14
98.35
108.41
4,021.04
4,432.43
46.70
51.48
901.90
994.17
13.88
15.29
508.81
560.87
7.84
8.64

CO
Metric tons
175.29
279.20
600.88
677.74
894.95
1,658.77
1,815.56
1,966.82
1,327.68
735.11
213.04
131.91

Short tons
193.22
307.77
662.35
747.08
986.51
1,828.47
2,001.31
2,168.05
1,463.52
810.32
234.83
145.41

Summary of biogenic source emissions

Ozone season daily emissions for Maricopa County and the eight-hour ozone nonattainment area
in 2011 are shown in Table 6.5–1. Annual emissions for Maricopa County and the eight-hour
ozone nonattainment area in 2011 are summarized in Table 6.5–2. Emissions of VOC, NOx, and
CO all decreased in 2011 compared to MEGAN results for PEI 2008. Due to the incorporation of
land cover data that are more characteristic of plants located in the desert southwest, as well as
improvements to the MEGAN model, the 2011 data shown in Tables 6.5–1 and 6.5–2 represent a
substantial improvement over previous biogenic emission estimates for Maricopa County and the
eight-hour ozone NAA.

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Table 6.5–1.

Season-day biogenic emissions.
VOC
Area
kg/day
lbs/day
Maricopa County
406,355.7
895,860.0
8-hr ozone NAA
283,221.1
624,395.0

Annual biogenic emissions.
VOC
Area
tonnes*/yr
tons*/yr
Maricopa County
72,316.20
79,714.87
8-hr ozone NAA
50,178.11
55,311.84

NOx
kg/day
4,172.6
2,826.6

CO
lbs/day
9,199.0
6,231.7

kg/day
55,422.8
28,387.8

tons/yr
779.52
527.18

tonnes/yr
10,476.94
5,383.74

lbs/day
122,186.2
62,584.2

Table 6.5–2.

NOx
tonnes/yr
707.17
478.25

CO
tons/yr
11,548.84
5,934.55

* “Tonne” denotes metric ton, and “ton” denotes short (or English) ton

6.6

References

Guenther, A., 2006a. User’s Guide to Processing Driving Variables for Model of Emissions of
Gases and Aerosols from Nature (MEGAN).
Guenther, A., 2006b. User’s Guide to the Model of Emissions of Gases and Aerosols from
Nature (MEGAN) Version MEGAN-VBA-2.0.
Guenther, A., 2007. Corrigendum to "Estimates of global terrestrial isoprene emissions using
MEGAN (Model of Emissions of Gases and Aerosols from Nature)" Atmos. Chem. Phys., 6,
3181–3210, 2006, Atmos. Chem. Phys., 7, 4327-4327.
Guenther, A., T. Karl, P. Harley, C. Wiedinmyer, P. I. Palmer, and C. Geron, 2006. Estimates of
global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and
Aerosols from Nature), Atmos. Chem. Phys., 6, 1-30.
Guenther, A., X. Jiang, C. L. Heald, T Sakulyanontvittaya, T. Duhl, L. K. Emmons, and X.
Wang, 2012. The model of emissions of gases and aerosols from nature version 2.1
(MEGAN2.1): an extended and updated framework for modeling biogenic emissions,
Geosci. Model Dev. Discuss., 5, 1503-1560.
Jiang, X., A. Guenther, and T. Duhl, 2011. MEGAN version 2.10 User’s Guide.

2011 Ozone Precursor Emissions Inventory

106

February 2014

Appendix A. Instructions for Reporting 2011 Annual Air Pollution Emissions

INSTRUCTIONS
FOR REPORTING 2011
ANNUAL AIR POLLUTION EMISSIONS

February 2012

Emissions Inventory Unit
1001 North Central Avenue, Suite 125
Phoenix, Arizona 85004
Phone: (602) 506-6790
Fax:
(602) 506-6179
Email: EmisInv@mail.maricopa.gov

Copies of this document, related forms,
and other reference materials are available online at our web site:
http://www.maricopa.gov/aq/divisions/planning_analysis/emissions_inventory/Default.aspx

TABLE OF CONTENTS
WHAT’S NEW FOR 2011? .............................................................................................................. 1
I.

INTRODUCTION............................................................................................................................. 2
Steps to Complete Your 2011 Maricopa County Emissions Inventory

II. REPORTING REQUIREMENTS................................................................................................... 3
- Pollutants to be Reported
- Emission Calculation Method Hierarchy
III. CONFIDENTIALITY OF DATA SUBMITTED............................................................................ 5
- Arizona State Statue and Maricopa County Rule
IV. HELPFUL HINTS AND INFORMATION..................................................................................... 6
- What is a Process?
- Processes and Materials That Do Not Have to be Reported
- Grouping Materials and/or Equipment Under One Process ID
- Assigning Identification Numbers (IDs)
- Industry-Specific Instructions
- Commonly Used Conversion Factors
- Additional Resources and Assistance
V.

INSTRUCTIONS AND EXAMPLES FOR EMISSIONS REPORTING FORMS
Business Form ..................................................................................................................................... 8
Stack Form ......................................................................................................................................... 9
Control Device Form ....................................................................................................................... 10
General Process Form ....................................................................................................................... 11
Evaporative Process Form ................................................................................................................ 15
Off-Site Recycling/Disposal Form.................................................................................................... 19
Documentation of Emission Factor Calculations.............................................................................. 20
Data Certification Form (for NON-Title V sources) ........................................................................ 21
How to Calculate an Emission Fee (for Title V sources ONLY)...................................................... 22
Data Certification/Fee Calculation Form (for Title V sources ONLY) ............................................ 23

Maricopa County Emissions Inventory Unit

ii

Instructions for Reporting 2011 Emissions

WHAT'S NEW FOR 2011?
Reporting forms:
•

Emission factors for PM-10 for several processes typically found at sand and gravel facilities and/or
concrete batch plants, have been revised. The new values are lower than the previous EPA default
emission factors, and reflect the more stringent moisture-content requirements required by Maricopa
County Rule 316 (Nonmetallic Mineral Processing).

•

Some preprinted information on your report may be different from last year’s version. Please
review the enclosed forms carefully, and verify all preprinted information.

•

Many of our reporting forms have changed in past years. If you develop your own forms, or a
computerized reproduction of our forms, the forms used MUST conform to the current information
requirements and FORMAT as supplied on our preprinted forms. “Homemade” reporting forms that
vary significantly from the preprinted forms sent to you will not be accepted.

•

Please VERIFY THOROUGHLY that the information you provide on all reporting forms
match the information presented on the preprinted forms from MCAQD.

Miscellaneous:
•

Non-operational facilities: Any facility that has been issued an air quality permit, but that did NOT
operate at any time during 2011, must still respond in writing to this request for annual emissions
information, as a condition of its air quality permit. Please provide ALL information requested on
both the “Business Form” and the “Data Certification Form”, and submit these forms, along with a
letter certifying that there were no operations at the facility during calendar year 2011, by the due date
shown on the Business Form.

•

Emissions fees for Title V facilities: In accordance with Maricopa County Air Pollution Control Rule
280 (Fees), the 2011 annual emission fee for Title V sources is $39.83/ton. NOTE: Only emissions
from Title V sources (those whose air quality permit numbers have a “V” prefix) are subject to this
annual emissions fee.

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

I. INTRODUCTION
An annual emissions inventory is a document submitted by a business that: (1) lists all processes emitting
reportable air pollutants and (2) provides details about each of those processes. Submitting the emissions
inventory report is required as a condition of your Maricopa County Air Quality Permit. A separate
emissions report is required for each business location with its own air quality permit.
Follow these steps to complete your 2011 Maricopa County emissions inventory:
STEP 1: Determine which forms are needed for your business. There are eight different forms available,
but not all are required for every type of business. For most permitted sources, the packet you received from
us contains the necessary preprinted forms based on your site’s most recent emissions inventory.
1.
2.

3.
4.
5.
6.
7.
8.

Business Form: Contains general contact information about the permitted site. This form is required
for all businesses.
Stack Form: Only required if your business location annually emits over 10 tons of a single pollutant
(CO, VOC, NO x , PM 10 , or SO x ). A “stack” is defined as a stack, pipe, vent or opening through which a
significant percentage of emissions (from one or more processes) are released into the atmosphere. See
the “Stack Form Instructions” on page 9 for specific requirements.
Control Device Form: Required only if there is one or more emission control devices used at the
business location.
General Process Form and
Either or both will be required for all businesses.
Evaporative Process Form:
Off-Site Recycling/Disposal Form: Required if you want to claim off-site recycling or disposal.
Emission Factor Calculations: Required as attachment for each process for which you calculated
your own emission factors.
Data Certification Form or Data Certification/Fee Calculation Form: Only sources with a Title V
(permit number would start with “V”) permit are required to pay a fee for their emissions and need to
use the Data Certification/Fee Calculation Form. All other sources use the Data Certification Form.

}

STEP 2: Complete the applicable forms. Verify all preprinted information, and make corrections where
necessary. When making corrections, strike out the preprinted data and write in corrections beside it. Please
make all changes readily noticeable. Detailed information on how to complete the most common forms is
included in this document. The packet you received also contains information about other resources
(workshops, one-on-one assistance, etc.) available to help you in completing the necessary forms.
STEP 3: Make a copy of your completed emissions inventory report. Make sure to KEEP COPIES of all
forms submitted and copies of all records and calculations used in completing the forms. Air pollution
control regulations require that you keep all documentation for at least FIVE YEARS at the location where
pollution is being emitted.
STEP 4: Make sure the Data Certification Form (or Data Certification/Fee Calculation Form for Title V
sources) is signed by a company representative. Include your air quality permit number on all correspondence and applicable checks submitted with your report. Return the original, signed copy of your
annual emission report, with payment for any applicable emission fees to:
Maricopa County Air Quality Department
Emissions Inventory Unit
1001 North Central Avenue, Suite 125
Phoenix, AZ 85004

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

II. REPORTING REQUIREMENTS
POLLUTANTS TO BE REPORTED:
Your emissions inventory must include your business’s emissions of the following air pollutants:
CO
NO x
PM 10
SO x
VOC
HAP&NON
NH x
Pb

=
=
=
=
=
=
=
=

Carbon monoxide
Nitrogen oxides
Particulate matter less than 10 microns
Sulfur oxides
Volatile organic compounds *
Hazardous Air Pollutant (HAP) that is also NOT a volatile organic compound (VOC)**
Ammonia and ammonium compounds
Lead

* A volatile organic compound (VOC) is defined as any compound of carbon that participates in atmospheric photochemical reactions. This definition excludes: carbon monoxide, carbon dioxide, acetone,
carbonic acid, metallic carbides or carbonates, and ammonium carbonate, as well as certain other organic
compounds. (See Maricopa County Air Pollution Control Rule 100, Sections 200.69 and 200.110 for a full
definition.)
EPA has re-designated the chemical t-butyl acetate (CAS Number 540-88-5) as a VOC for record-keeping
requirements and emissions reporting, but not for emission limitations or content requirements. County Rule
100, Section 200.69b states:
“The following compound(s) are VOC for purposes of all recordkeeping, emissions reporting, photochemical
dispersion modeling and inventory requirements which apply to VOC and shall be uniquely identified in
emission reports, but are not VOC for purposes of VOC emissions limitations or VOC content
requirements: t-butyl acetate (540-88-5).”
Therefore, if your facility uses t-butyl acetate, it is necessary to report t-butyl acetate as a separate material
on the evaporative process form, not as part of a grouped material (e.g., solvents, thinners, activators, etc.).
T-butyl acetate will continue to be identified as a VOC on your emission report and count towards any
applicable emission fees.
** HAP&NON: Usage of certain materials that are: (1) a Hazardous Air Pollutant (HAP) and (2) not also a
VOC (that is, not also an ozone precursor) should also be reported if:
(a) your site is subject to a Federal MACT (Maximum Achievable Control Technology) standard or
(b) your air quality permit contains specific quantitative limits for HAP emissions.
The most common materials categorized as “HAP&NON” include:
• methylene chloride (dichloromethane)
• perchloroethylene
• 111-trichloroethane (111-TCA or methyl chloroform)
• hydrochloric acid
• hydrofluoric acid
NOTE: HAPs that are also considered volatile organic compounds are reported as VOC.

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

EMISSION CALCULATION METHOD HIERARCHY:
When preparing emission information for your report, the most accurate method for calculating actual
emissions must be used. The hierarchy listed below outlines the preferred methods for calculating emission
estimates (taken from County Rule 280, Section 305.1).
(1)

Whenever available, emissions estimates should be calculated from continuous emissions
monitors certified under 40 CFR Part 75, Subpart C, or data quality assured pursuant to
Appendix F of 40 CFR, Part 60.

(2)

When sufficient data obtained using the methods described in paragraph 1 is not available,
emissions estimates should be calculated from source performance tests conducted pursuant to
Rule 270 in Maricopa County’s Air Pollution Control Rules and Regulations.

(3)

When sufficient data obtained using the methods described in paragraphs 1 or 2 is not available,
emissions estimates should be calculated from material balance using engineering knowledge of
the process.

(4)

When sufficient data obtained using the methods described in paragraphs 1 through 3 is not
available, emissions estimates shall be calculated using emissions factors from EPA Publication
No. AP-42 "Compilation of Air Pollutant Emission Factors," Volume I: Stationary Point and
Area Sources.

(5)

When sufficient data obtained using the methods described in paragraphs 1 through 4 is not
available, emissions estimates should be calculated by equivalent methods supported by back-up
documentation that will substantiate the chosen method.

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

III. CONFIDENTIALITY OF DATA SUBMITTED
Information submitted in your annual emissions reports must be made available to the public unless it meets
certain criteria of Arizona State Statutes and Maricopa County Rules. Applicable excerpts concerning
confidentiality of data are reproduced below.
ARS § 49-487 D. ...the following information shall be available to the public:…
2. The chemical constituents, concentrations and amounts of any emission of any air contaminant. ...

MARICOPA COUNTY AIR POLLUTION CONTROL RULES AND REGULATIONS, Rule 100:
§ 200.107 TRADE SECRETS - Information to which all of the following apply:
a.
A person has taken reasonable measures to protect from disclosure and the person intends to continue to
take such measures.
b.
The information is not, and has not been, reasonably obtainable without the person’s consent by other
persons, other than governmental bodies, by use of legitimate means, other than discovery based on a
showing of special need in a judicial or quasi-judicial proceeding.
c.
No statute, including ARS §49-487, specifically requires disclosure of the information to the public.
d.
The person has satisfactorily shown that disclosure of the information is likely to cause substantial harm to
the business’s competitive position.
§ 402
402.2
a.
b.

CONFIDENTIALITY OF INFORMATION:
Any records, reports or information obtained from any person under these rules shall be available to the
public ... unless a person:
Precisely identifies the information in the permit(s), records, or reports which is considered confidential.
Provides sufficient supporting information to allow the Control Officer to evaluate whether such information
satisfies the requirements related to trade secrets as defined in Section 200.107 of this rule.

For emissions inventory information to be deemed confidential, the following steps must be followed:
• Specific data which you request be held confidential must be identified by marking an “X” in the
corresponding gray confidentiality box(es) on the relevant report forms.
• Provide a written explanation which gives factual information satisfactorily describing why releasing this
information could cause substantial harm to the business’s competitive position.
• Use the gray-shaded boxes on the reporting forms to indicate which data are to be held confidential. Do
NOT stamp “Confidential”, highlight data, or otherwise mark the page.
No data can be held confidential without proper justification.

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

IV. HELPFUL HINTS AND INFORMATION
Be sure to verify all preprinted information on forms. If any information is incorrect or blank, please provide
correct information. Making a change on the Business Form will NOT transfer the permit ownership or
location. You must contact the Department's Small Business Assistance Program at (602) 506-5102 or the
Engineering & Permitting Division at (602) 506-6094 to accomplish this.
WHAT IS A PROCESS? A process is a business activity at your location that emits one or more of the
pollutants listed on page 3, and has only one material type as input and one operating schedule. For each
applicable process at your business, you must assign a unique Process ID number to differentiate each
process.
PROCESSES AND MATERIALS THAT DO NOT HAVE TO BE REPORTED:
• Welding.
• Acetone usage.
• Fuel use for forklifts or other vehicles. (NOTE: Fuel use in non-vehicle engines is reportable.)
• Soil remediation activities. (Note: Other periodic reporting requirements may exist; consult your permit.)
• Storage emissions from fuels or organic chemicals in any tank with a capacity of 250 gallons or less.
• Storage emissions of diesel and Jet A fuel in underground tanks of any size.
• Storage emissions of diesel and Jet A fuel in aboveground tanks, with throughput < 4,000,000 gal/yr.
• Routine pesticide usage, housekeeping cleaners, and routine maintenance painting at your facility.
Please group all similar equipment and materials together before applying the following limitations:
• Internal combustion engines (e.g., emergency generators) or external combustion equipment (e.g., boilers
and heaters) that operated less than 100 hrs. and burned less than 200 gals. diesel or gas, or less than
100,000 cubic feet of natural gas.
• Materials with usage of less than 15 gallons or 100 pounds per year.
GROUPING MATERIALS AND/OR EQUIPMENT UNDER ONE PROCESS ID:
You can group together under one process ID:
• All internal combustion engines less than 600 hp if they burn the same fuel and have similar operating
schedules.
• All external combustion equipment (boilers, heaters) with a capacity of less than 10,000,000 Btu per
hour if they burn the same fuel and have similar operating schedules.
• All similar evaporative materials with similar emission factors that have similar operating schedules and
process descriptions. For example, group low-VOC red paint, green paint and white paint together as
one material: “Paint: Low-VOC.” Do not group dissimilar materials together, such as thinners and
paints. Attach documentation (see example, p. 20) showing how the grouped emission factor was
determined.
• All underground tanks with the same fuel and same type of vapor recovery system.
ASSIGNING IDENTIFICATION NUMBERS (IDs):
Unique IDs are required for the following report elements: Stacks, Control Devices and Processes. For
processes, that means a process ID number may be used only once on each General Process form and for
each material reported on the Evaporative Process Forms.
These numbers are usually assigned by the person who prepares the original report. If you are adding a new
item to a preprinted report, assign a number not already in use. Once an ID number is assigned, continue
using the same number for that item each year. If that item is no longer reportable, mark it with ‘DELETE’
and return the preprinted form with a brief explanation. Do not use that ID number again.
Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

INDUSTRY-SPECIFIC INSTRUCTIONS: Additional help sheets, detailed examples, and special
instructions are available for a number of specific processes or industries listed below. To get copies of any
of these documents, please call (602) 506-6790, or visit our web site
at: http://www.maricopa.gov/aq/divisions/planning_analysis/emissions_inventory/Default.aspx
•
•
•
•
•

Bakeries
Concrete Batch Plants
Fuel Storage and Handling
Incinerators and Crematories
Lg. Aboveground Storage Tanks

•
•
•
•
•

Natural Gas Boilers/Heaters
Polyester Resin
Printing Plants
Roofing Asphalt
Sand and Gravel Plants

•
•
•
•

Using EPA's TANKS 4.09d Program
Vehicle Refinishing
Vehicle Travel on Unpaved Roads
Woodworking

COMMONLY USED CONVERSION FACTORS:
1 gram/liter = 0.00834 lbs/gal
1 foot
= 0.0001894 mile
1 liter
= 0.2642 gallon (US)
1 square foot
= 0.000022957 acre
1 therm
= 0.0000952 MMCF
1 pound
= 0.0005 ton
NOTE:
MM = 1,000,000
Example: MMCF = 1,000,000 cubic feet
M = 1,000
Example: MGAL = 1,000 gallons
ADDITIONAL RESOURCES AND ASSISTANCE:
The Maricopa County Emissions Inventory web site
at: http://www.maricopa.gov/aq/divisions/planning_analysis/emissions_inventory/Default.aspx
contains additional reference materials, such as:
•
•
•
•

blank copies of most emissions reporting forms.
an updated list of emission factors for a large number of industrial processes, including SCC codes.
a list of Tier Codes for industrial processes.
detailed help sheets for a number of specific industries or processes.

To receive any of the above materials by fax or mail, or for additional information or assistance in how to
calculate and report your emissions, please call us at (602) 506-6790.

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

V. INSTRUCTIONS AND EXAMPLES FOR COMPLETING EMISSIONS REPORTING FORMS

Business Form

Instructions

Verify all preprinted information, and make corrections where necessary. When making corrections, strike
out the preprinted data and write in corrections beside it. Please make all changes readily noticeable.

NOTE:

Making a change on the Business Form will NOT transfer the permit ownership or location. You
must contact the Department's Small Business Assistance Program at (602) 506-5102 or the Engineering &
Permitting Division at (602) 506-6094 to accomplish this.

Data fields:
6 Number of employees: This should be the annual average number of full-time equivalent (FTE)
employee positions at this business location.
9

NAICS Code: This 5- or 6-digit North American Industrial Classification System (NAICS) code has
been introduced to replace the 4-digit Standard Industrial Classification (SIC) codes. Please list the
primary and secondary NAICS codes for your business, if known. (Consult our website,
at: http://www.maricopa.gov/aq/divisions/planning_analysis/emissions_inventory/Default.aspx, for a link
to a full list of NAICS codes.)

10 Preparer of the Inventory (primary contact for technical questions concerning this report): This should be
the person who knows the most about the data in the report. If this person has an e-mail address used for
business purposes, please provide it.
11 Who should receive the Annual Emissions Inventory Form next year?: This should be a person who is
directly employed with the business. This person should not be a consultant for the business.

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

Stack Form

Instructions

A “stack” is defined as a stationary stack, pipe, vent or opening through which a significant percentage of
emissions (from one or more processes) are released into the atmosphere (with or without a control device).

NOTE:

Stack information is required only if your business location annually emits over 10 tons of any one
individual pollutant. If so, you must complete a Stack Form for:
• each stack connected to a control device.
• any stack that discharges annually more than 5 tons of combined pollutant emissions (such as a paint
booth exhaust).
EXAMPLE Stack Form Information:
1

2

Stack
ID

Stack
Type
Code*

3

1

W

30 ft

2

V

14 ft

4

5a OR 5b

6a OR 6b & 6c

7

Stack
Exit Gas
Velocity Flow Rate Diameter Length / Width
Height** Temperature feet/sec
acfm
inside inch
inside inch

* Stack Type Codes:

90
200

o
o

F
F

Stack Name/Description. Include lat/long
coordinates of stack (in decimal degrees)

20,000

36

paint booth Lat: N33. 5277

19,186

40

thermal oxidizer, Bldg. 2

Long: W1 1 2. 2626

Lat: N33. 5259 Long: W1 1 2. 261 3

V = Vertical unobstructed
D = Downward unobstructed
W = Obstructed vertical (e.g. weather cap)

H = Horizontal unobstructed
G = Gooseneck

** Stack height is calculated relative to the surrounding terrain. For instance, the stack height of a 10-foot
stack on top of a 20-foot tall building is 30 feet.
Data fields:
1

Stack ID: (See “Assigning Identification Numbers” on page 6.) A number (up to three digits, numeric
only) which identifies a specific stack. It is suggested you start with 1, then 2, etc.

4

Exit Gas Temperature: Should represent average operating conditions, in degrees Fahrenheit.
DO NOT report “ambient”.

5a Exit Gas Velocity: OR 5b Gas Flow Rate:
Provide EITHER the exit velocity (in feet per second) OR the flow rate of gas (in actual cubic feet per
minute) exiting the stack during normal operations. Preprinted information provides both.
6a Inside Stack Diameter: For round stacks, provide Inside Stack Diameter in inches.
OR
6b & 6c Inside Stack Length and Width: For square or rectangular stacks, provide inside Length and inside
Width in inches.
7

Stack Name/Description and Lat/Long Coordinates: Provide a brief text description of the stack along
with the latitude and longitude coordinates of the stack (in decimal degrees).

Maricopa County Emissions Inventory Unit

9

Instructions for Reporting 2011 Emissions

Control Device Form

Instructions
EXAMPLE Control Device Form Information

1

2

3

4

Control
ID

Installation/
Reconstruction*
Date

5

Size or Rated Capacity**

Control
Type Code

Control Device
Name/Description

1

05/09/98

25,000.0 cfm

021

Thermal oxidizer

4

03/10/97

cfm

153

Watering with water trucks

6
Stack ID

2

Data fields:
1

Control ID: (See “Assigning Identification Numbers” on page 6.) A unique number (up to three digits)
that you assign to identify a specific control device.

2

Installation/Reconstruction Date: The completion date (given in mm/dd/yy format) of installation or the
most recent reconstruction of the identified control device. This is not a date on which routine repair or
maintenance was done. “Reconstruction” means any component of the control device was replaced and
the cost (fixed capital) of the new component(s) was more than half of what it would have cost to
purchase or construct a new control device.

3

Size or Rated Capacity: Report the air or water flow rate in cubic feet per minute. Some devices (e.g.,
water trucks for dust control) will not include a value in this field.

4

Control Type Code: A 3-digit code designating the type of control device. A complete list of all EPA
control device codes can be found on the Web
at: http://www.maricopa.gov/aq/divisions/ planning_analysis/emissions inventory/Default.aspx or call
(602) 506-6790 for assistance.

6

Stack ID: Not all businesses require a Stack ID. This is required if the Stack Form is used for your site
(see page 9) and the control device is vented through that identified stack. This is the ID number shown
in column 1 of the Stack Form. The Stack ID can be entered on this form after the Stack Form has been
filled out.

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

General Process Form

Instructions

The General Process Form is used to record data on all emissions-producing processes except evaporative
processes. A “general process” is normally characterized by the burning or handling of a material. One
form reports all the pollutants for one process. For example, several pollutants are produced by burning fuel,
and PM 10 is emitted by processing rock products, processing materials such as wood or cotton, and driving
on unpaved areas.
Data fields: (See sample forms on pages 13 and 14.)
1 Process ID: A number (up to three digits) that is preprinted or you assign. (See “Assigning Identification
Numbers” on page 6.) This Process ID number can not be used for any other process at this location.
2

Process Type/Description: Brief details on the type of activity that is occurring.

3

Stack ID(s): The stack ID number(s) shown in column 1 of the Stack Form that identify the stack(s)
which vent pollution created by this process. Not all businesses are required to report stacks. This is only
required if the Stack Form is required for your site (see page 9) and the process has a stack.

4
5

Process Tier Code and
SCC Code:

6

Seasonal Throughput Percent: Enter the percent of total annual operating time that occurred per season,
rounded to the nearest percent. For example, “Dec-Feb 30% ” means 30% of total annual activity
occurred in January, February and December 2011. The total for all four seasons must equal 100%.

7
8

Normal Operating Schedule and
Typical Hours of Operation:

9

Emissions Based on: Provide the name of the material used, fuel used, product produced, or whatever
was measured for the purpose of calculating emissions, such as “natural gas”, “hours of operation,”
“vehicle miles traveled,” or “acres.”

If these codes are not preprinted on your form, please consult the
section “Other Resources” on our web site, or call (602) 506-6790.

These reflect the normal daily, weekly, and annual operating
parameters of this process during 2011.

10 Used, Produced or Existing: Indicate whether calculated emissions are based on a material type or fuel
used (an input, such as “paint” or “natural gas”), or an output (such as “sawdust produced” or “finished
product”). Use “Existing” if the parameter reported on line 9 is not directly used or produced in the
process (such as “vehicle miles traveled” or “acres”).
11 Annual Amount: The annual amount (a number) of material that was used, fuel combusted, product
produced, hours of operation, vehicle miles traveled, or acres.
12 Fuel Sulfur Content (in percent): For processes that involve the combustion of oil or diesel fuels, report
the sulfur content of the fuel as a decimal value. Example: 0.05 % (= 500 ppm)
13 Unit of Measure: Units of the material used, fuel used or product produced shown on line 9.
For example: gallons, pounds, tons, therms, acres, vehicle miles traveled, units produced.
14 Unit Conversion Factor: You must provide this if you use an emission factor with an emission factor unit
(see item 17 below) that is not the same as the unit of measure (from line 13). This is the standard
number you would multiply your amount (line 11) by to convert it to the units of the emission factor. See
page 7 for a list of commonly used conversion factors.

Maricopa County Emissions Inventory Unit

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Instructions for Reporting 2011 Emissions

General Process Form Instructions (continued)
15 Pollutant: See page 3 for a list of pollutants that need to be reported.
16 Emission Factor (EF): The number to be multiplied by the annual amount (line 11) to determine how
much of the pollutant was emitted. If you calculate your own emission factor or change the preprinted
emission factor, you must provide details of your calculations in an attachment.
17 Emission Factor (EF) Units: Enter the appropriate Emission Factor Units in pounds (lb) per unit; e.g.,
lb/ton, lb/MMCF, lb/gal.
18 Controlled Emission Factor (EF)? YES or NO: Indicate “YES” if: 1) you have your own emission factor
from testing and included the control device efficiency within the factor, or 2) the emission factor used is
clearly identified as a controlled emission factor. A “YES” response requires the use of Formula A (see
#25 below). Indicate “NO” if: 1) there is no emission control device, or 2) the emission factor represents
emission rates before controls. A “NO” response requires the use of Formula B (see #25 below).
19 Calculation Method: Enter the number code (listed at the bottom of the General Process Form) which
best describes the method you used to obtain this emission factor. Code 5, “AP-42/FIRE Method or
Emission Factor” means that the factor comes from EPA documents or software. NOTE: If you have
continuous emissions monitors (CEM) data or conducted a source test that was required and approved by
the County for a specific process or piece of equipment, you must use the emission data from the CEM
or the test results. Report “1” in this column for CEM data or “4” for performance test data.
20 through 24: Leave blank if there is no control device.
20 Capture % Efficiency: The percent of the pollutant that is captured and sent to the primary control
device in this process. Be sure to list capture efficiency separately for each pollutant affected.
21 Primary Control Device ID: If this pollutant is being controlled in this process, enter the Control
Device ID number which represents the first control device affecting the pollutant.
22 Secondary Control Device ID: If this pollutant is being controlled sequentially by 2 devices, enter
the Control Device ID number which represents the second control device; otherwise leave this field
blank.
23 Control Device(s) % Efficiency: Enter the total control efficiency of the control device(s). Be sure to
list control device efficiency separately for each pollutant affected. If you report control device
efficiency, you must also show capture efficiency in column 20.
24 Efficiency Reference Code: Enter the code (1 through 6) that best describes how you determined the
control device efficiency. A list of possible codes is included at the bottom of the form.
25 Estimated Actual Emissions (in pounds/year): You may round the calculated emissions values to the
nearest pound. Calculate as follows:
A. Emissions with no controls or controls are reflected in the emission factor:
Column 25 = line 11 × line 14 × column 16
B. Emissions after control:
Column 25 = line 11 × line 14 × column 16 × (1 – [column 20 × column 23])
Use the decimal equivalent for columns 20 and 23. Example: 96.123% = 0.96123
Maricopa County Emissions Inventory Unit

12

Instructions for Reporting 2011 Emissions

General Process Form 2011

Permit number(s)

EXAMPLE: Internal Combustion

V99999

Place an X in any gray cell to mark data requested to be held confidential. See page 5 for requirements for information to be deemed confidential.
1- Process ID
80
2- Process Type/Description:

3 ENGINES FOR CRUSHING (EACH LESS THAN 600 HP)

3- Stack ID(s) (only if required on Stack Form)

________

020599

4- Process TIER Code:
5- SCC Code

_______

20200102

IND:DIESEL-RECIPROCATING

(8 digit number)

6- Seasonal Throughput Percent:

25

Dec-Feb

7- Normal Operating Schedule:

Hours/Day

8- Typical Hours of Operation: (military time)

________
________
________
FUEL COMB. INDUSTRIAL: INTERNAL COMBUSTION

%

8

Days/Week

0700

Start

25

Mar-May

Jun-Aug

25

Hours/Year

2080

%

5

 Used (input)

11- Annual Amount:

or

Produced (output) or

Pollutant

CO

NOx
PM-10
SOx
VOC

Emission
Factor (EF)
(number)

130
604
42.5
39.7
49.3

Emission
Factor
Unit (lb per)

M
M
M
M
M

19

20

Controlled
EF?
Yes or No

Calculation
Method
Code*

Capture %
Efficiency

N
N
N
N
N

5
5
5
5
5

GALS
GALS
GALS
GALS
GALS

* Calculation Method Codes:
1 = Continuous Emissions Monitoring Measurements
2 = Best Guess / Engineering Judgment
3 = Material Balance
4 = Source Test Measurements (Stack Test)
5 = AP-42 / FIRE Method or Emission Factor

Maricopa County Emissions Inventory Unit

52 x

__0.05_______%

GALLONS

14- Unit Conversion Factor (if needed to convert Unit of Measure to correlate with emission factor units)

Emission Factor (EF) Information
16
17
18

%

DIESEL

12- Fuel Sulfur Content (in percent)

13- Unit of Measure: (for example: tons, gallons, million cu ft, acres, units produced, etc.)

15

Weeks/Year

25

Existing (e.g. VMT, acres)

16,250

(a number)

Sep-Nov

1530

End

9- Emissions based on (name of material or other parameter, e.g. “rock”, “diesel”, “vehicle miles traveled”)
10-

%

0.001

Control Device Information
21
22
23
Primary
Control
Device ID

Secondary
Control
Device ID

Control
Device(s) %
Efficiency

24

25

Efficiency
Reference
Code**

Estimated Actual
Emissions

2,113
9,815
691
645
801

6 = State or Local Agency Emission Factor
7 = Manufacturer Specifications
8 = Site-Specific Emission Factor
9 = Vendor Emission Factor
10 = Trade Group Emission Factor

13

lbs
lbs
lbs
lbs
lbs

** Control Efficiency Reference Codes:
1 = Tested efficiency / EPA reference method
2 = Tested efficiency / other source test method
3 = Design value from manufacturer
4 = Best guess / engineering estimate
5 = Calculated based on material balance
6 = Estimated, based on a published value

Instructions for Reporting 2011 Emissions

General Process Form 2011

Permit number(s)

EXAMPLE: Unpaved Road Travel

V99999

Place an X in any gray cell to mark data requested to be held confidential. See page 5 for requirements for information to be deemed confidential.
1- Process ID
28
2- Process Type/Description: UNPAVED ROAD TRAVEL: HEAVY-DUTY TRUCKS @ 15 MPH
_______

3- Stack ID(s) (only if required on Stack Form)
4- Process TIER Code:
5- SCC Code

________

140799

30502504

________

6- Seasonal Throughput Percent:

SAND/GRAVEL: HAULING
25

Dec-Feb

%

Jun-Aug

25

Hours/Year

2080

%

5

Days/Week

0700

Start

25

Mar-May

8

Hours/Day

8- Typical Hours of Operation: (military time)

Used (input)

11- Annual Amount:

or

Produced (output)

or

Sep-Nov
Weeks/Year

25

%

52 x

VEHICLE MILES TRAVELED (VMT)

 Existing (e.g. VMT, acres)

7,500

(a number)

%

1530

End

9- Emissions based on (name of material or other parameter, e.g. “rock”, “diesel”, “vehicle miles traveled”)
10-

________

MISCELLANEOUS: FUGITIVE DUST
(8 digit number)

7- Normal Operating Schedule:

________

12- Fuel Sulfur Content (in percent)

______________%

VMT

13- Unit of Measure: (for example: tons, gallons, million cu ft, acres, units produced, etc.)

14- Unit Conversion Factor (if needed to convert Unit of Measure to correlate with emission factor units)

15
Pollutant

PM-10

Emission Factor (EF) Information
16
17
18
Emission
Factor (EF)
(number)

3.2

Emission
Factor
Unit (lb per)

VMT

Control Device Information
21
22
23

19

20

Controlled
EF?
Yes or No

Calculation
Method
Code*

Capture %
Efficiency

Primary
Control
Device ID

N

6

100

4

Secondary
Control
Device ID

24

25

Control
Device(s) %
Efficiency

Efficiency
Reference
Code**

Estimated Actual
Emissions

90

6

2400

lbs
lbs
lbs
lbs
lbs
lbs

NOTE: Emissions in col. 25 are calculated as follows:
* Calculation Method Codes:
1 = Continuous Emissions Monitoring Measurements
2 = Best Guess / Engineering Judgment
3 = Material Balance
4 = Source Test Measurements (Stack Test)
5 = AP-42 / FIRE Method or Emission Factor

Maricopa County Emissions Inventory Unit

(line 11 × col. 16) × (1 – [col. 20 × col. 23])

6 = State or Local Agency Emission Factor
7 = Manufacturer Specifications
8 = Site-Specific Emission Factor
9 = Vendor Emission Factor
10 = Trade Group Emission Factor

14

** Control Efficiency Reference Codes
1 = Tested efficiency / EPA reference method
2 = Tested efficiency / other source test method
3 = Design value from manufacturer
4 = Best guess / engineering estimate
5 = Calculated based on material balance
6 = Estimated, based on a published value

Instructions for Reporting 2011 Emissions

Evaporative Process Form

Instructions

The Evaporative Process Form is used to report all emissions produced by evaporation. Examples include:
cleaning with solvents, painting and other coatings, printing, using resin, evaporation of fuels from storage
tanks, ammonia use, etc. All other processes should be shown on the General Process Form.
One Evaporative Process Form may be used to report numerous materials, with each material given a
separate process ID number, as long as the information on lines 1–5 apply to all items on that form. Use a
separate form for each group of materials that has a different Process Type/Description (shown on line 1),
different Tier Code (line 2) or different operating schedule (lines 3, 4, or 5).
Data fields: (See sample forms on pages 17 and 18.)
1 Process Type/Description: Brief details of the activity in which the listed materials were used.
2

Process Tier Code: If this 6-digit code is not preprinted on your form, please refer to the Tier Code list
at: http://www.maricopa.gov/aq/divisions/planning_analysis/emissions_inventory/Default.aspx
or call (602) 506-6790.

3

Seasonal Throughput Percent: Enter the percent of total annual operating time that occurred per season
(rounded to the nearest percent). For example, “Dec-Feb 30% ” means 30% of the total annual activity
occurred during January, February and December 2011. The total for all four seasons must equal 100%.

4
5

Normal Operating Schedule and
Typical Hours of Operation:

6

Process ID: A number (up to three digits) that represents this specific material (process). Each process
on one form must have the same tier code and operating schedule as that shown in the top portion of the
form. This Process ID number can not be used for any other process at this business location. See page
6 of these instructions for more explanation of ID numbers and for exclusions and guidance on grouping
materials.

7

Stack ID(s): The stack ID number(s) shown in column 1 of the Stack Form that identify the stack(s)
which vent pollution created by this process. Not all businesses are required to report stacks. This is only
required if the Stack Form is required for your site (see page 9) and the process has a stack.

8

Material Type: Provide the name of the material used in this process. Give the chemical name for pure
chemicals or a name that reflects its use (paint, ink, etc.), rather than just a brand name or code number.
Examples of materials include: paint, thinner, degreasing solvent (plus its common name), ink, fountain
solution, ammonia, alcohol, ETO (ethylene oxide), gasoline (in a storage tank).

9

Annual Material Usage/Input: Amount of this material used during the year. In most cases, the amount
purchased is suitable. Write in “lbs” or “gal” (pounds or gallons).

These represent the usual number of hours, time of day and weeks
per year when this process occurred during the calendar year.

10 Pollutant: The only pollutants reported on this form are VOC, HAP&NON and NH X (see definitions on
page 3). When one process (or material) has more than one of these pollutants, list each pollutant on a
separate line, using the same process ID number.

Maricopa County Emissions Inventory Unit

15

Instructions for Reporting 2011 Emissions

Evaporative Process Form (continued)
11 Emission Factor (EF): An emission factor is a number used to calculate the pounds of pollutant emitted
based on the quantity of material used in a process. Emission factors can be obtained from your supplier
(usually provided on a Material Safety Data Sheet or environmental data sheet), and must correspond
with the material units reported in column 9. If the material unit is “gal,” then the emission factor must
be in pounds of pollutant per gallon. If the material unit is “lb,” then the emission factor must be in
pounds of pollutant per pound of material.
Verify (and correct, where necessary) all preprinted emission factors, as the composition of materials
used may have changed since your last report. A “lb/gal” emission factor is almost always less than 8 and
never greater than 14. A “lb/lb” emission factor is never larger than 1.0.
12 Pounds of pollutant sent off-site: Required only if you wish to take credit for reduced emissions because
waste of this material is sent off-site for recycling or disposal. Only waste generated during the report
year may be claimed. The Off-Site Recycling/Disposal Form must be completed if you wish to claim a
credit. The number of pounds reported in column 12 must equal the number of pounds reported on the
Off-Site Recycling/Disposal Form(s) for the same Process ID number.
13 and 14: Leave these fields blank if there is no control device present.
13 Capture % Efficiency: The percent of the pollutant from this process that is captured and sent to the
control device.
14 Control ID: If this pollutant is being controlled in this process, enter the Control Device ID number
from column 1 of the Control Device Form.
Control % Efficiency: Enter the percent of this pollutant that is controlled by this control device.
Code: Select the Control Efficiency Reference Code from the list at the bottom of the form.
15 Estimated Emissions (lbs/yr): Estimated pounds of the pollutant emitted during the year, after off-site
recycling/disposal and controls if applicable. Credit will not be given for off-site recycling/disposal
unless it is shown on the Off-Site Recycling/Disposal Form. Round to the nearest pound. If the
answer is 0, give a decimal answer to the first significant digit. Column 15 is calculated as follows:
Emissions without off-site recycling/disposal or controls:
Column 15 = column 9 × column 11
Emissions with off-site recycling/disposal:
Column 15 = (column 9 × column 11) – column 12
Emissions with off-site recycling/disposal and controls:
Column 15 = ([column 9 × column 11] – column 12) × (1 – [column 13 × column 14])
Use the decimal equivalent for columns 13 and 14. Example: 96.123% = 0.96123

Maricopa County Emissions Inventory Unit

16

Instructions for Reporting 2011 Emissions

EXAMPLE: Coating and Painting
Evaporative Process Form 2011

Permit number(s)

V99999

Place an X in any gray cell to mark data requested to be held confidential. See page 5 for requirements for information to be deemed confidential.
1- Process Type/Description: Coating metal parts
2- Process TIER Code:

080415

3- Seasonal Throughput Percent:
4- Normal Operating Schedule:
5- Typical Hours of Operation

SOLVENT USE: SURFACE COATING - MISC METAL PARTS
Dec-Feb

Hours/Day

25

%

8

Days/Week

(military time)

6

7

8

Process
ID

Stack
ID(s)

Material Type

800

1

801

1

802

1

803
803

Mar-May

Start

9

5

Hours/Year
End

0800

Jun-Aug

25

2080

%

Sep-Nov

25

%

Weeks/Year 52__

1700

10

11
Emission
Factor

EF
Units
(lbs per)

12

13

Pounds of
pollutant*
sent
off site

Capture
Efficiency
%

14
Control
ID

15

lb
or
gal

VOC,
HAP&NON
or
NHx

95

gl

VOC

4.7

gal

%

%

447

120

gl

VOC

7.1

gal

%

%

852

940

gl

VOC

4.2

gal

%

%

3,948

1

Paint red
4039-03
Toro-Red Paint

707

gl

VOC

7.0

gal

%

%

4,949

1

Toro-Red Paint

707

gl

HAP&NON

0.5

gal

%

%

354

Lacquer
6455-06
lacq thinner

Annual
Usage
Input

%

25

Control
Efficiency
%

Control
Efficiency
Code**

Estimated
Emissions
(lbs/yr)

lb
powder paint
20,200
VOC
0.001
lb
20
%
%
8730-11
Note: Do NOT change preprinted Process ID numbers. See page 6 of these instructions for information on how to delete materials that are no longer used, or to assign Process
ID numbers for new materials.

804

1

* If you have off-site recycling/disposal of any of the materials listed above, you must complete an Off-site Recycling/Disposal Form to receive
credit for reduced emissions.
NOTE: Emissions in col. 15 are calculated as follows:
** Control Efficiency Reference Codes
1 = Tested efficiency / EPA reference method
4 = Best guess / engineering estimate

Maricopa County Emissions Inventory Unit

([col. 9 × col. 11] – col. 12) × (1 – [col. 13 × col. 14])

2 = Tested efficiency / other source test method
5 = Calculated based on material balance

17

3 = Design value from manufacturer
6 = Estimated, based on a published value.

Instructions for Reporting 2011 Emissions

EXAMPLE: Cleaning solvent (with recycling)
Evaporative Process Form 2011

Permit number(s)

V99999

Place an X in any gray cell to mark data requested to be held confidential. See page 5 for requirements for information to be deemed confidential.
1- Process Type/Description:
2- Process TIER Code:

CLEANING METAL PARTS

080103

3- Seasonal Throughput Percent:

Dec-Feb

4- Normal Operating Schedule:
5- Typical Hours of Operation

SOLVENT USE: DEGREASING - COLD CLEANING

Hours/Day

25

%

8

Days/Week

(military time)

6

7

8

Process
ID

Stack
ID(s)

Material Type

3

2

Mar-May

Start

9

%

25

Hours/Year

5

End

1300

Jun-Aug
2080

25

%

Sep-Nov

25

%

Weeks/Year 52__

1700

10

11
EF
Units
(lbs per)

12

13
Capture
Efficiency
%

14

VOC,
HAP&NON
or
NHx

SANITIZER

716

lb

VOC

1.0

lb

6

GUN CLEANER

180

gl

VOC

7.2

gl

569

%

%

727

7

XYZ STRIPPER

1300

gl

VOC

3.3

gl

1,884

%

%

2,406

8

CLEANING
SOLVENTS
MEGASOLVE

358

gl

VOC

6.4

gl

1,006

%

%

1,285

2258

gl

VOC

6.8

gl

6,741

%

%

8,613

%

%

95 %

Control
ID

15

lb
or
gal

9

Emission
Factor

Pounds of
pollutant*
sent
off site

Annual Usage
Input

1

Control
Efficiency
%

80 %

Control
Efficiency
Code**

Estimated
Emissions
(lbs/yr)

3

172

Note: Do NOT change preprinted Process ID numbers. See page 6 of these instructions for information on how to delete materials that are no longer used, or to assign Process
ID numbers for new materials.

* If you have off-site recycling/disposal of any of the materials listed above, you must complete an Off-site Recycling/Disposal Form to receive
credit for reduced emissions.
NOTE:

This example shows the case where 2,400 of the original 4,096 gallons of materials #6 through 9 were captured
for off-site recycling, and the pollutant content of the waste material was estimated to be 75% of the
original. The pounds of pollutant sent off-site shown in column 12 is calculated on the example Off-Site
Recycling/Disposal Form on the next page.

Maricopa County Emissions Inventory Unit

18

Instructions for Reporting 2011 Emissions

EXAMPLE
Off-Site Recycling/Disposal Form 2011

Permit number(s)

V99999

NOTE: If you need blank copies of this form, call the Emissions Inventory Unit at
(602) 506-6790 or consult our web page at
http://www.maricopa.gov/aq/divisions/planning_analysis/emissions_inventory/Default.aspx
Provide one off-site recycling/disposal form for each waste stream at your business location. A waste stream is the waste from one
or more processes mixed together to make one waste product before it is taken off site for recycling, disposal or combustion.
01
1) Assign a unique two-digit ID number to identify the waste stream that will be described below.
(Start with ID# 01 for first waste stream. Make copies of a blank Off-Site Recycling/Disposal form and use 02 for second,
etc.)
Check one:

2,400

pounds
gallons

2) What was the quantity of this waste stream in 2011?
Indicate whether this quantity is reported in pounds or gallons. Keep waste disposal company manifests as proof that this
amount of waste was taken off-site.
3) What was the average pollutant content of the waste stream? NOTE: Report in the same units (pounds or gallons) as used
in line 2.
VOC

4.25

lbs/unit

HAP&NON

lbs/ unit NHx

lbs/ unit

NOTE: Waste normally has less pollutant content than the new product. Some of the
pollutant evaporates during the use of the product, and there is usually dirt, water or
other contaminants in the waste stream. The estimated pollutant content of the waste is
usually between 50% and 95% of the new product. This example estimates an average VOC
content (on line 3) to be 75% of the original VOC content of 5.67 lbs/gal., to account
for evaporation and contaminants. See page 20 to calculate a weighted average.
4) Calculate the total annual pollutant content of the waste in this waste stream.
(volume of waste, from Line 2) × (pollutant content, from Line 3) = Total pollutants in waste stream, in lbs/yr.
VOC

10,200

lbs/yr HAP&NON

lbs/yr

NHx

lbs/yr

5) List the process ID numbers of the processes contributing to this waste stream. Also estimate the pounds of pollutant
that each process contributed to this waste stream.
NOTE: In this example, the amount each process material contributed to total pollutants
in the waste stream (Line 4) is based on the percentage, by weight, of each material
that contributed to the waste stream (e.g., Process ID #6 contributed 5.6%, therefore
5.6% × 10,200 lbs/yr = 569 lbs. See example on page 20).
NOTE: Column totals in the table below must equal the total for each pollutant type reported on line 4. The quantities
you report below for each pollutant and process must also be reported in column 12 on the Evaporative Process Form.
Process ID
6 Contributed about
7 Contributed about
8 Contributed about
9 Contributed about

Annual VOC (lbs)
569
1,884
1,006
6,741

Maricopa County Emissions Inventory Unit

Annual
HAP&NON (lbs)
lbs
lbs
lbs
lbs

19

Annual NHx (lbs)
lbs
lbs
lbs
lbs

lbs
lbs
lbs
lbs

Instructions for Reporting 2011 Emissions

EXAMPLE: Documentation of Emission Factor Calculations
Identify the process ID number(s) and pollutant(s). Show calculations made to obtain the emission factors used
for the process(es). Include references to data sources used, including the document name, date published, page
numbers, etc.

Emission Factor Calculation
Process ID

Permit number

201

V99999

Emission factors derived from source test performed 12/2/00 by XYZ Engineering
Company (copy of summary tables also attached).
Outlet (after controls):
CO
= 0.43 lb/hr × 1 hr/60 min × 1 min/77.9 cu. ft × 1,000,000 cu. ft/MMCF
= 92.0 lb/MMCF
= 0.09 lb/hr × 1 hr/60 min × 1 min/77.9 cu. ft × 1,000,000 cu. ft/MMCF
= 19.3 lb/MMCF

NOx

Weighted average sample calculation
NOTE: The example below shows how the weighted average of the materials going into the
waste stream is calculated. A weighted-average emission factor has been calculated
by listing usage amounts and emission factors for each material, summing each
column, and then dividing the total emissions by the total gallons used.
In this example: 23,231 lbs ÷ 4,096 gal = 5.67 lb/gal average VOC content. This
emission factor is then used to calculate the average pollutant content in the Offsite Recycling/Disposal Form example.
This process can also be used to find the weighted average emission factor for
similar materials if you are reporting them together as a single line item on the
Evaporative Process form. Refer to the explanation of “grouping” on page 6.

Process
ID #
6
7
8
9

Material Type
gun cleaner
xyz stripper
cleaning solvent
MEGASOLVE
Totals:
Average
VOC content:

Maricopa County Emissions Inventory Unit

2011
Usage

Units

180
1,300
358
2,258
4,096

gal
gal
gal
gal
gal

VOC
(lbs/unit)
7.2
3.3
6.4
6.8

23,231 lbs.
4,096 gals

20

VOC Emissions
(= Usage × VOC
content)
1,296 lbs.
4,290 lbs.
2,291 lbs.
15,354 lbs.
23,231 lbs.
=

Percent contributed
to waste stream

5.6 %
18.5
9.9
66.1
100.0

%
%
%
%

5.67
lb/gal

Instructions for Reporting 2011 Emissions

EXAMPLE (for all sources except Title V sources)
Data Certification Form 2011

Permit number

999999

For EACH pollutant listed, total up all emissions recorded on your General Process and Evaporative Process Forms. Enter these
numbers in column 1, “Totals from Process Forms.” Report any emissions from accidental releases in column 2.
Add the figures in each row across, and enter the result in column 3, “Total Emissions”.
NOTE: “Accidental Releases” reported in column 2 should include all excess emissions
reported to the Department under Rule 140, Section 500.
(1)
Totals from
Process Forms

Summary of 2011 Annual Emissions:

(2)
+ Accidental
Releases

2,113
0
0
354
24,220
9,815
645
3,091

CO
NH x
Lead
HAP&NON
VOC
NO x
SO x
PM 10

0
0
0
0
0
0
0
0

(3)
= TOTAL
2011 Emissions

2,113
0
0
354
24,220
9,815
645
3,091

NOTE: Review specific requirements for data confidentiality on page 5. We cannot hold
any data confidential without the required documentation.

TO COMPLETE YOUR EMISSIONS INVENTORY REPORT:
-

Complete the Confidentiality Statement below.
Sign and date this form below where indicated.
Send the original copy of your completed forms to: Maricopa County Air Quality Dept.,
Emissions Inventory Unit,1001 North Central Avenue, Suite 125, Phoenix, AZ 85004.
Keep a copy of all forms for your records.

CONFIDENTIALITY STATEMENT:
This annual emissions report contains requests to keep some data confidential.
YES
NO
If you check “YES”, you must submit documentation and meet certain requirements before your data can be deemed confidential.
See enclosed instructions for further details.
NOTE: The Data Certification form must be signed by a responsible company official.
CERTIFICATION STATEMENT:
I declare under penalty of perjury that the data (e.g. inputs, emission factors, controls, and annual emissions) presented herein
represents the best available information and is true, accurate and complete to the best of my knowledge.

___________________________________________________________________________________________________________
Signature of owner/business officer
Date of signature
Telephone number
___________________________________________________________________________________________________________
Type or print full name of owner/business officer
Type or print full title

Maricopa County Emissions Inventory Unit

21

Instructions for Reporting 2011 Emissions

How to calculate an emission fee (for Title V sources only):
1. For each pollutant listed on the “Data Certification/Fee Calculation” form, total up all emissions
recorded on your General Process and Evaporative Process Forms. Enter these numbers in column 1,
“Totals from Process Forms.”
NOTE: While most processes that generate PM 10 should be reported on line 5 of the Data Certification/Fee
Calculation form, “[f]ugitive emissions of PM 10 from activities other than crushing, belt transfers,
screening, or stacking” (County Rule 280, § 305.2d) are NOT subject to annual emission fees. The most
common occurrences of these PM 10 -producing activities that are NON-billable are listed below:
SCC codes and description of PM 10 -producing processes that are NOT subject to emission fees
SCC
30200814
30400737
30500120
30500121
30500134
30500135
30500141
30500143
30500203
30500212
30500213
30500290
30500303
30500608
30500708
30501710
30502007
30502011
30502504
30502507
30502760
30531090
30532007
30704002
31100199
31100299
50100401
50100402
50100403
50100404
50100405

Major Category Subcategory

Facility / Process Type

Process Description

Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Industrial Processes
Waste Disposal
Waste Disposal
Waste Disposal
Waste Disposal
Waste Disposal

Feed Manufacture
Steel Foundries
Asphalt Roofing Manufacture
Asphalt Roofing Manufacture
Asphalt Roofing Manufacture
Asphalt Roofing Manufacture
Asphalt Roofing Manufacture
Asphalt Roofing Manufacture
Asphalt Concrete
Asphalt Concrete
Asphalt Concrete
Asphalt Concrete
Brick Manufacture
Cement Manufacturing (Dry Process)
Cement Manufacturing (Wet Process)
Mineral Wool
Stone Quarrying - Processing
Stone Quarrying - Processing
Construction Sand and Gravel
Construction Sand and Gravel
Industrial Sand and Gravel
Coal Mining, Cleaning, Material Handling
Stone Quarrying - Processing
Bulk Handling and Storage - Wood/Bark
Construction: Building Contractors
Demolitions/Special Trade Contracts
Landfill Dump
Landfill Dump
Landfill Dump
Landfill Dump
Landfill Dump

Storage
Raw Material Silo
Storage Bins: Ferric Chloride
Storage Bins: Mineral Stabilizer
Blown Saturant Storage
Blown Coating Storage
Granules Storage
Mineral Dust Storage
Storage Piles
Heated Asphalt Storage Tanks
Storage Silo
Haul Roads: General
Storage of Raw Materials
Raw Material Piles
Raw Material Piles
Storage of Oils and Binders
Open Storage
Hauling
Hauling
Storage Piles
Sand Handling, Transfer, & Storage
Haul Roads: General
Open Storage
Stockpiles
Other Not Classified
Other Construction/Demolition
Unpaved Road Traffic
Fugitive Emissions
Area Method
Trench Method
Ramp Method

Food and Agriculture
Secondary Metal Production
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Mineral Products
Pulp and Paper & Wood Pdts.
Building Construction
Building Construction
Solid Waste Disposal
Solid Waste Disposal
Solid Waste Disposal
Solid Waste Disposal
Solid Waste Disposal

2. Report any accidental releases in column 2. Add columns 1 and 2 together for each pollutant, and enter
the sum in column 3. Sum lines 1 through 5 together, and enter the total on line 6.
3. Divide your facility's total billable emissions (on line 6) by 2000 to convert pounds into tons. Round to
the nearest ton. Enter this value on line 7. Multiply this number by $39.83, and enter the result on line
8. This is your 2011 emission fee.

Maricopa County Emissions Inventory Unit

22

Instructions for Reporting 2011 Emissions

EXAMPLE (for Title V sources only)
Data Certification/Fee Calculation Form 2011

Permit number

V99999

For EACH pollutant listed, total up all emissions recorded on your General Process and Evaporative Process Forms. Enter these
numbers in column 1, “Totals from Process Forms.” Report any emissions from accidental releases in column 2.
Add the figures in each row across, and enter the result in column 3, “Total Emissions”.
Carefully follow the instructions on lines 6 through 8 to calculate any emission fee owed.
NOTE: “Accidental Releases” reported in column 2 should include all excess emissions
reported to the Department under Rule 140, Section 500.
(1)
Totals from
Process Forms

Summary of 2011 Annual Emissions:

2,113
0
0
2,400

CO
NH x
Lead
PM 10 (non-billable; see page 22)

(2)
+ Accidental
Releases

(3)
= TOTAL
2011 Emissions

0
0
0
0

2,113
0
0
2,400

Emissions fees are based on your emissions of the following pollutants ONLY:
1
2
3
4
5
6
7

8

354
24,220
9,815
645
691

HAP&NON
VOC
NO x
SO x
PM 10 (billable; see page 22)

0
0
0
0
0

354
24,220
9,815
645
691
35,725

Add “TOTAL” column from lines 1 through 5 ONLY:

Divide the total on line 6 by 2000 (pounds per ton) to get tons, and round the number to the
nearest ton. (Drop any decimal of .499 or less. Increase to the next whole number any
decimal of .500 or more.) Enter the resulting WHOLE NUMBER here.
Multiply line 7 (a WHOLE number) by $ 39.83.
This is your 2011 ANNUAL EMISSION FEE.

18

$

lbs.

TONS

716.94

NOTE: Review specific requirements for data confidentiality on page 5. We cannot hold
any data confidential without the required documentation.

TO COMPLETE YOUR EMISSIONS INVENTORY REPORT:
-

Include a check (made payable to Maricopa County Air Quality Department) for the amount calculated on line 8 above.
Complete the Confidentiality Statement below.
Sign and date this form below where indicated.
Send the Original copy of your completed forms along with any emission fee due to: Maricopa County Air Quality Department,
Emissions Inventory Unit,1001 North Central Avenue, Suite 125, Phoenix, AZ 85004.
Keep a copy of all forms for your records.

CONFIDENTIALITY STATEMENT:
This annual emissions report contains requests to keep some data confidential.
YES
NO
If you check “YES”, you must submit documentation and meet certain requirements before your data can be deemed confidential.
See enclosed instructions for further details.
NOTE: The Data Certification form must be signed by a responsible company official.
CERTIFICATION STATEMENT:
I declare under penalty of perjury that the data (e.g. inputs, emission factors, controls, and annual emissions) presented herein
represents the best available information and is true, accurate and complete to the best of my knowledge.
___________________________________________________________________________________________________________
Signature of owner/business officer
Date of signature
Telephone number
___________________________________________________________________________________________________________
Type or print full name of owner/business officer
Type or print full title

Maricopa County Emissions Inventory Unit

23

Instructions for Reporting 2011 Emissions

Appendix B. Rule Effectiveness (RE) Studies
1. Introduction
Rule effectiveness (RE) studies are designed to assess the success of regulatory rules at controlling their targeted emissions. It is acknowledged that facilities and source categories subject to
control techniques and devices mandated by rules do not always achieve 100% compliance with
those requirements. Given this reality, the US EPA recommends the use of rule effectiveness
studies to improve the quality of emission estimates presented in emission inventories.
Once an RE rate has been calculated, its value is applied to relevant sources at an individual
process level, thus adjusting (i.e., increasing) emission estimates to reflect a lower degree of
control efficiency. The formulas below illustrate how inclusion of rule effectiveness can
significantly affect the resulting emission estimates:
Emissions before the application of rule effectiveness:
Uncontrolled Emissions × [1 – (Control Efficiency)] = Emissions with Control
100 tons

×

[ 1 – (0.90) ]

= 10.0 tons

Emissions including the application of rule effectiveness:
Uncontrolled Emissions × [1 – (Control Efficiency × RE)]
100 tons

×

[ 1 – (0.90 × 0.83) ]

= Emissions with Control
= 25.3 tons

In general, the RE rate is applied to all processes where a control device or control technique is
in use. There are however some limitations to this blanket rule, as expressed in US EPA’s most
recent guidance:
…not all emission estimates involving use of a control device or technique need to
be adjusted to account for RE…For example, a state or local agency may conclude that a control device that operates in conjunction with a continuous emissions monitor, or is equipped with an automatic shutdown device, may provide a
sufficient level of assurance that intended emission reductions will be achieved,
and therefore an adjustment for rule effectiveness is not necessary. Another
example would be in instances where a direct determination of emissions, such as
via a mass balance calculation, can be made. (US EPA, 2005)
Another complication in any attempt to apply a blanket RE percentage rate occurs where control
device efficiencies are extremely high. Some categories of control devices routinely operate at
efficiencies of 99% or greater (e.g., baghouses, thermal oxidizers). For these activities, even
small adjustments through the application of RE can cause a dramatic increase in reported
emissions. As an example, a process with a control device of 99.9% efficiency may report
controlled emissions of 10 tons. If an RE rate of 85% were applied to this process, the adjusted
emissions would total 1,508.5 tons (an increase of nearly 15,000%). In these types of instances,
the department evaluated the affected processes on a case-by-case basis to determine the
appropriateness of applying an RE adjustment.

2011 Ozone Precursor Emission Inventory

B–1

February 2014

2. Calculating Rule Effectiveness Rates for Title V Facilities and Non-Title V Facilities
The observed compliance rate in some cases, such as multi-source Title V and non-Title V
facilities, can be better described as a rate at which inspection staff issue violations. Inspection
staff has a range of experience and training which influences their proficiency in issuing appropriate violations. There may be instances when a rule violation goes unnoticed by staff, or
conversely a violation may be issued in error. Even when a compliance rate has a high statistical
measure of accuracy, it can fail to reflect a number of programmatic measures that affect overall
rule effectiveness; measures like the strength of rule language, departmental enforcement and
penalty actions, inspector training programs, educational and public outreach efforts, etc. This
reality is reflected in earlier US EPA guidance:
A percentage effectiveness rating is not enough to describe the compliance effectiveness of a rule for a source category. An SSCD [Stationary Source Compliance
Division] study should attempt to link the rating to a regulatory agency’s overall
effort. The study should address the factors that affect the percentage effectiveness rating such as the compliance rate of the sources in a category, inspection
frequency and thoroughness, the language of the rule (i.e., whether or not it has
loopholes), and the reporting and recordkeeping by the regulatory agency.
Evaluating these factors will provide a more complete evaluation of the effectiveness of a rule. (US EPA, 1994)
In order to incorporate all the salient factors described above, a matrix was created to produce a
final RE rate. US EPA’s latest guidance (2005) provides a listing of factors that can impact rule
effectiveness rates (e.g., inspector training, frequency of inspections, media outreach, enforcement policies, recordkeeping requirements, etc.), grouped into major categories such as most
important factors, important factors and other factors. The department used these suggested
factors as the basis for developing the RE matrices contained in Tables B–2 and B–3.
In brief, the compliance rate developed from inspection data accounts for 70% of the overall RE
rate, while all other factors account for the remaining 30%. Each factor is scored individually,
based upon the department’s success in implementing that factor. As an example, the score for
the factor “Compliance History” is the compliance rate developed from the study period
inspection data, while the score for “Enforcement Penalties” is based upon the department’s
timely response to, and settlement of, observed violations associated with the subject rule or
source category. The complete matrices for each applicable rule or source category for which
rule effectiveness was addressed, are contained in Tables B–2 and B–3.
The following sections describe in further detail the data and methods used in the development
of the remaining RE factors for Title V and non-Title V permitted facilities; results are
summarized in Table B–1 below.
Table B–1. Rule effectiveness rate, by source category analyzed.
Source Category
Compliance Rate
Rule Effectiveness (RE) Rate
Title V Facilities
90.45% *
91.81%
Non-Title V Facilities
85.92% *
87.81%
* Compliance rates for both Title V and Non-Title V facilities are based upon 2010-2011 inspection data, and
reflect compliance self-monitoring recordkeeping practice, in addition to violation data.

2011 Ozone Precursor Emission Inventory

B–2

February 2014

For the remaining emission processes that include a control device or technique that limits ozone
formation, separate multi-rule RE rates have been calculated for permitted Title V and non-Title
V facilities. Factor-based matrices have been utilized to develop RE rates for Title V and nonTitle V facilities. Compliance rates for these sources are based upon two full years of data (2010
through 2011), as compliance information for these sources tends to be more detailed (as
reflected in the matrix). The compliance rate for these facilities also includes data on selfmonitoring recordkeeping practices in addition to inspection data. The combined scores of the
monitoring data and inspection data divided by the 70% of the overall RE rate comprise the
‘compliance rate’ section of the RE calculation matrix. The combined compliance rate for Title
V facilities is 90.45% and 85.92% for non-Title V facilities, resulting in RE rates of 91.81% and
87.81% for Title V and non-Title V facilities, respectively, as shown in Tables B–2 and B–3
below.
3 References
US EPA, 1994. Rule Effectiveness Guidance: Integration of Inventory, Compliance and
Assessment Applications. EPA Rep. 452/R-94-001, January 1994.
US EPA, 2005. Emissions Inventory Guidance for Implementation of Ozone and Particulate
Matter National Ambient Air Quality Standards (NAAQS) and Regional Haze Regulations.
EPA Rep. 454/R-05-001, November 2005.

2011 Ozone Precursor Emission Inventory

B–3

February 2014

Table B–2. Rule Effectiveness Matrix for Title V Facilities
A. Most important factors (2 criteria, each assigned weighting of 35% of total):
Factor

Range

Midpt.
value

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%
< 70%

75%
35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Monitoring

Compliance
History

Description
Source specific monitoring used for compliance
purposes, and monitoring records filed with
regulatory agency at least every 4 months.
Source specific monitoring used as an indicator of
compliance, and monitoring records filed with
regulatory agency every 6 to 9 months.
Source specific monitoring used as an indicator of
compliance, and monitoring records filed with
regulatory agency each year.
General guidance exists for source specific
enhanced monitoring, and monitoring records
required but aren’t submitted to regulatory agency.
No requirements for any type of monitoring.
The facility has been in compliance for the past
eight quarters.
The facility is believed to have been in compliance
for the past eight quarters, although inspection
frequency is such that this can’t be positively
confirmed.
On schedule; the facility is meeting its compliance
schedule.
In Violation; facility is in violation of emissions
and/or procedural requirements.
High Priority Violator (HPV): the facility is in
significant violation of one or more applicable
requirement of the CAA.

Weight

Value
Score
assigned to (= weight ×
MCAQD
value)

35%

90%

31.5%

12 of 21
facilities

19.4%

7 of 21
facilities

11.3%

2 of 21
facilities
Sum:

1.2%
31.8%

35%

Overall Compliance Rate for Title V facilities:

90.45%

B. Other important factors (4 criteria, each assigned weighting of 3% of total):

Type of
Inspection

Operation &
Maintenance

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%
< 70%

75%
35%

Inspections involve compliance test methods with
a high degree of accuracy, such as stack testing or
other types of precise emissions measurement.
Inspections involve detailed review of process
parameters & inspection of control equipment.
Inspections involve review of process and
inspection of control equipment.
Inspections generally consist of only a records
review.
Inspections most likely consist of visual inspection
(e.g., opacity), or drive by.
Control equipment operators follow and sign daily
O&M instructions.
Control equipment operators follow daily O&M
instructions.
Control equipment operators follow daily or
weekly O&M instructions.
O&M requirements exist, but on no specific
schedule.
No specific O&M requirements.

2011 Ozone Precursor Emission Inventory

B–4

3%

97%

2.9%

3%

90%

2.7%

February 2014

Factor

Unannounced
Inspections

Range
94%
100%
87%
93%
81%
86%
70%
80%
< 70%

Midpt.
value
97%
90%
84%
75%
35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Enforcement
Penalties

Description
Routinely conducted.
Sometimes done.
Done, but infrequently.
Rarely done.
Never done.
Agency has the authority to impose punitive
measures, including monetary fines, towards
violators such as in delegated Title V Operating
Permit programs.
Agency has the authority to impose punitive
measures, including monetary fines, towards
violators such as in delegated Title V Operating
Permit programs.
Agency has the authority to impose punitive
measures, including monetary fines, towards
violators such as in delegated Title V Operating
Permit programs.
Agency has the authority to impose punitive
measures, including monetary fines, towards
violators such as in delegated Title V Operating
Permit programs.
Agency does not have sufficient authority to
impose punitive measures towards violators.

Weight
3%

Value
Score
assigned to (= weight ×
MCAQD
value)
97%
2.9%

3%

97%

2.91%

2%

97%

1.94%

2%

97%

1.94%

2%

97%

1.94%

C. Other factors (9 criteria, each assigned weighting of 2% of total):

Compliance
Certifications

Inspection
Frequency

EPA HPV
Enforcement

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

94%

100%

97%

87%

93%

90%

81%
70%

86%
80%
< 70%

84%
75%
35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Source subject to Title V or other type of compliance certification.
Source subject to Title V or other type of compliance certification.
Source not subject to any type of compliance certification.
Source not subject to any type of compliance certification.
Source not subject to any type of compliance certification.
Source(s) are inspected once every 2 years or more
frequently.
Source(s) are inspected once every 3 years or more
frequently.
Source(s) are inspected once every 5 years or more
frequently.
Inspection of source(s) infrequent; > every 5 years.
Inspections rarely, if ever, performed.
Agency has sufficient resources to implement
EPA’s 12/22/98 HPV policy.
Agency’s resources allow it to implement EPA’s
12/22/98 HPV policy in most instances.
Agency’s resources allow it to implement EPA’s
12/22/98 HPV policy in most instances.
Agency’s resources allow it to implement EPA’s
12/22/98 HPV policy more often than not.
Resource constraints prohibit agency from
implementing EPA’s 12/22/98 HPV policy in most
instances.

2011 Ozone Precursor Emission Inventory

B–5

February 2014

Factor

Operator
Training

Media
Publicity

Range

Midpt.
value

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

0.8

75%

< 70%

35%

Description
Control equipment operators complete a formal
training program on use of the equipment, and
such program is kept up to date and has been
reviewed by the regulatory agency.
Control equipment operators complete formal
training program, and such program is kept up to
date and available for review by the regulatory
agency upon request.
Control equipment operators complete some
amount of formal training.
Control equipment operators receive only on the
job training.
Control equipment operators receive no specific
training.

100%
93%
86%
80%
< 70%

97%
90%
84%
75%
35%

Media publicity of enforcement actions.
Media publicity of enforcement actions.
Media publicity of enforcement actions.
Media publicity of enforcement actions.
No media publicity of enforcement actions.

94%
87%
81%
70%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Regulatory
Workshops

94%

Inspector
Training

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Regulatory workshops are available annually,
and/or the implementing agency mails regulatory
information packages each year.
Regulatory workshops are available every 1-2
years, and/or the implementing agency mails
regulatory information packages every 1-2 years.
Regulatory workshops are available every 2-3
years, and/or the implementing agency mails
regulatory information packages once every 2-3
years.
Regulatory workshop not routinely available, but
implementing agency mails regulatory information
packages out about once every 2-3 years.
Regulatory workshops not routinely available.
Implementing agency mails regulatory information
packages infrequently, if ever.
Inspectors must undergo 2 weeks of
comprehensive basic training, and 1 to 2 weeks of
source specific training, and such training is
updated each year.
Inspectors must undergo 1 to 2 weeks of basic
training and 1 week of source specific training and
such training is updated every 1-2 years.
Inspectors must undergo 1 to 2 weeks of basic
training and 3 to 5 days of source specific training,
and such training is updated every 1-2 years.
Inspectors must undergo 1 to 2 weeks of basic
training and 1 to 3 days of source specific training,
and such training is updated every 1-2 years.
Inspectors must undergo less than 5 days of basic
training less than 3 days of source specific
training, and such training is updated only every 2
years or less frequently.

2011 Ozone Precursor Emission Inventory

B–6

Weight

Value
Score
assigned to (= weight ×
MCAQD
value)

2%

84%

1.68%

2%

97%

1.94%

2%

97%

1.94%

2%

90%

1.80%

February 2014

Factor

Range
94%

Testing
Guidelines

Follow-up
Inspections

Midpt.
value

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Description
Specific guidelines and schedule for testing and
test methods exist.
Specific guidelines on testing and test methods
exist, but no schedule for testing.
Specific guidelines on testing and test methods
exist, but no schedule for testing.
Specific guidelines on testing and test methods,
but no schedule for testing.
Only general guidance on testing, or no mention of
testing requirements.
Follow-up inspections always or almost always
conducted (90 % of the time or more).
Follow-up inspections usually conducted
(approximately 75% of the time).
Follow-up inspections sometimes conducted
(approximately 50% of the time).
Follow-up inspections infrequently conducted
(approximately 25% of the time).
Follow-up inspections rarely or never conducted
(10% of the time or less)

Overall rule effectiveness score for Title V facilities:

2011 Ozone Precursor Emission Inventory

B–7

Weight
2%

2%

Value
Score
assigned to (= weight ×
MCAQD
value)
97%

1.94%

97%

1.94%

91.81%

February 2014

Table B–3. Rule Effectiveness Matrix for Non-Title V Facilities
A. Most important factors (2 criteria, each assigned weighting of 35% of total):
Factor

Range

Midpt.
value

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%
< 70%

75%
35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Monitoring

Compliance
History

Description
Source specific monitoring used for compliance
purposes, and monitoring records filed with
regulatory agency at least every 4 months.
Source specific monitoring used as an indicator of
compliance, and monitoring records filed with
regulatory agency every 6 to 9 months.
Source specific monitoring used as an indicator of
compliance, and monitoring records filed with
regulatory agency each year.
General guidance exists for source specific
enhanced monitoring, and monitoring records required but aren’t submitted to regulatory agency.
No requirements for any type of monitoring.
The facility has been in compliance for the past
eight quarters.
The facility is believed to have been in compliance
for the past eight quarters, although inspection
frequency is such that this can’t be positively
confirmed.
On schedule; the facility is meeting its compliance
schedule.
In Violation; facility is in violation of emissions
and/or procedural requirements.
High Priority Violator (HPV): the facility is in
significant violation of one or more applicable
requirement of the CAA.

Weight

35%

35%

Value
Score
assigned to (= weight
MCAQD
× value)

75%

191 of 268
facilities

24.2%

19 of 268
facilities

2.2%

77 of 268
facilities

7.5%

0 of 268
facilities
Sum:

0.0%
33.9%

Overall Compliance Rate for Non-Title V facilities:

B.

26.3%

85.92%

Other important factors (4 criteria, each assigned weighting of 3% of total):

Type of
Inspection

Operation &
Maintenance

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%
< 70%

75%
35%

Inspections involve compliance test methods with
a high degree of accuracy, such as stack testing or
other types of precise emissions measurement.
Inspections involve detailed review of process
parameters & inspection of control equipment.
Inspections involve review of process and
inspection of control equipment.
Inspections generally consist of only a records
review.
Inspections most likely consist of visual inspection
(e.g., opacity), or drive by.
Control equipment operators follow and sign daily
O&M instructions.
Control equipment operators follow daily O&M
instructions.
Control equipment operators follow daily or
weekly O&M instructions.
O&M requirements exist, but on no specific
schedule.
No specific O&M requirements.

2011 Ozone Precursor Emission Inventory

B–8

3%

90%

2.7%

3%

90%

2.7%

February 2014

Factor
Unannounced
Inspections

Range
94%
100%
87%
93%
81%
86%
70%
80%
< 70%

Midpt.
value
97%
90%
84%
75%
35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Enforcement
Penalties

Description
Routinely conducted.
Sometimes done.
Done, but infrequently.
Rarely done.
Never done.
Agency has the authority to impose punitive
measures, including monetary fines, towards
violators such as in delegated Title V Operating
Permit programs.
Agency has the authority to impose punitive
measures, including monetary fines, towards
violators such as in delegated Title V Operating
Permit programs.
Agency has the authority to impose punitive
measures, including monetary fines, towards
violators such as in delegated Title V Operating
Permit programs.
Agency has the authority to impose punitive
measures, including monetary fines, towards
violators such as in delegated Title V Operating
Permit programs.
Agency does not have sufficient authority to
impose punitive measures towards violators.

Weight
3%

Value
Score
assigned to (= weight
MCAQD
× value)
97%
2.91%

3%

97%

2.91%

2%

75%

1.5%

2%

97%

1.94%

2%

97%

1.94%

C. Other factors (9 criteria, each assigned weighting of 2% of total):

Compliance
Certifications

Inspection
Frequency

EPA HPV
Enforcement

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

94%

100%

97%

87%

93%

90%

81%
70%

86%
80%
< 70%

84%
75%
35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Source subject to Title V or other type of
compliance certification.
Source subject to Title V or other type of
compliance certification.
Source not subject to any type of compliance
certification.
Source not subject to any type of compliance
certification.
Source not subject to any type of compliance
certification.
Source(s) are inspected once every 2 years or more
frequently.
Source(s) inspected every 3 years or more
frequently.
Source(s) inspected every 5 years or more
frequently.
Inspection of source(s) infrequent; > every 5 years.
Inspections rarely, if ever, performed.
Agency has sufficient resources to implement
EPA’s 12/22/98 HPV policy.
Agency’s resources allow it to implement EPA’s
12/22/98 HPV policy in most instances.
Agency’s resources allow it to implement EPA’s
12/22/98 HPV policy in most instances.
Agency’s resources allow it to implement EPA’s
12/22/98 HPV policy more often than not.
Resource constraints prohibit agency from
implementing EPA’s 12/22/98 HPV policy in most
instances.

2011 Ozone Precursor Emission Inventory

B–9

February 2014

Factor

Operator
Training

Media
Publicity

Midpt.
value

Range

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

0.8

75%

< 70%

35%

Description
Control equipment operators complete a formal
training program on use of the equipment; the
program is kept up to date and has been reviewed
by the regulatory agency.
Control equipment operators complete formal
training program, and such program is kept up to
date and available for review by the regulatory
agency upon request.
Control equipment operators complete some
amount of formal training.
Control equipment operators receive only on the
job training.
Control equipment operators receive no specific
training.

100%
93%
86%
80%
< 70%

97%
90%
84%
75%
35%

Media publicity of enforcement actions.
Media publicity of enforcement actions.
Media publicity of enforcement actions.
Media publicity of enforcement actions.
No media publicity of enforcement actions.

94%
87%
81%
70%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Regulatory
Workshops

Inspector
Training

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Regulatory workshops are available annually,
and/or the implementing agency mails regulatory
information packages each year.
Regulatory workshops are available every 1-2
years, and/or the implementing agency mails
regulatory information packages every 1-2 years.
Regulatory workshops are available every 2-3
years, and/or the implementing agency mails
regulatory information packages once every 2-3
years.
Regulatory workshop not routinely available, but
implementing agency mails regulatory information
packages out about once every 2-3 years.
Regulatory workshops not routinely available. The
implementing agency mails regulatory information
packages infrequently, if ever.
Inspectors must undergo 2 weeks of comprehensive basic training, and 1 to 2 weeks of source
specific training, and such training is updated each
year.
Inspectors must undergo 1 to 2 weeks of basic
training and 1 week of source specific training and
such training is updated every 1-2 years.
Inspectors must undergo 1 to 2 weeks of basic
training and 3 to 5 days of source specific training,
and such training is updated every 1-2 years.
Inspectors must undergo 1 to 2 weeks of basic
training and 1 to 3 days of source specific training,
and such training is updated every 1-2 years.
Inspectors must undergo less than 5 days of basic
training less than 3 days of source specific
training, and such training is updated only every 2
years or less frequently.

2011 Ozone Precursor Emission Inventory

B–10

Weight

Value
assigned to
MCAQD

Score(=
weight ×
value)

2%

75%

1.50%

2%

97%

1.94%

2%

97%

1.94%

2%

90%

1.80%

February 2014

Factor

Testing
Guidelines

Follow-up
Inspections

Midpt.
value

Range
94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

94%

100%

97%

87%

93%

90%

81%

86%

84%

70%

80%

75%

< 70%

35%

Description
Specific guidelines and schedule for testing and
test methods exist.
Specific guidelines on testing and test methods
exist, but no schedule for testing.
Specific guidelines on testing and test methods
exist, but no schedule for testing.
Specific guidelines on testing and test methods,
but no schedule for testing.
Only general guidance on testing, or no mention of
testing requirements.
Follow-up inspections always or almost always
conducted (90 % of the time or more).
Follow-up inspections usually conducted
(approximately 75% of the time).
Follow-up inspections sometimes conducted
(approximately 50% of the time).
Follow-up inspections infrequently conducted
(approximately 25% of the time).
Follow-up inspections rarely or never conducted
(10% of the time or less)

Overall rule effectiveness score for non-Title V facilities:

2011 Ozone Precursor Emission Inventory

B–11

Weight

Value
assigned to
MCAQD

Score(=
weight ×
value)

2%

97%

1.94%

2%

97%

1.94%

87.81%

February 2014

Appendix C. MOVES2010b Local Input Data and RunSpecs
In order to calculate the 2011 annual and ozone season-day onroad source emissions,
MOVES2010b was executed using local input data for each month of the year and each geographical area (the eight-hour ozone NAA and Maricopa County).
A portion of the MOVES2010b RunSpec Summary, RunSpec, and local input data for Maricopa
County are provided in this appendix as an example.

2011 Ozone Precursor Emission Inventory

C–1

February 2014

MOVES2010b RunSpec Summary (Maricopa County, December 2011)
* Output Database Server Name: [using default]
* Scale:
Domain/Scale: County
Calculation Type: Inventory
* Time Spans:
Time Aggregation Level: Hour
Years: 2011
Months: December
Days: Weekend & Weekdays
Hours: Start Hour 00:00 - 00:59 | End Hour 23:00 - 23:59
* Geographic Bounds:
Region: County
Selections: ARIZONA - Maricopa County
Domain Input Database: pei_mc_2011_may2011_m2010b_in_v1
* Vehicles/Equipment
On Road Vehicle Equipment:
Diesel Fuel - Combination Long-haul Truck
Diesel Fuel - Combination Short-haul Truck
Diesel Fuel - Intercity Bus
Diesel Fuel - Light Commercial Truck
Diesel Fuel - Motor Home
Diesel Fuel - Motorcycle
Diesel Fuel - Passenger Car
Diesel Fuel - Passenger Truck
Diesel Fuel - Refuse Truck
Diesel Fuel - School Bus
Diesel Fuel - Single Unit Long-haul Truck
Diesel Fuel - Single Unit Short-haul Truck
Diesel Fuel - Transit Bus
Gasoline - Combination Long-haul Truck
Gasoline - Combination Short-haul Truck
Gasoline - Intercity Bus
Gasoline - Light Commercial Truck
Gasoline - Motor Home
Gasoline - Motorcycle
Gasoline - Passenger Car
Gasoline - Passenger Truck
Gasoline - Refuse Truck
Gasoline - School Bus
Gasoline - Single Unit Long-haul Truck
Gasoline - Single Unit Short-haul Truck
Gasoline - Transit Bus
Compressed natural Gas (CNG) - Combination Long-haul
Truck
Compressed natural Gas (CNG) - Combination Short-haul
Truck
Compressed natural Gas (CNG) - Intercity Bus
Compressed natural Gas (CNG) - Light Commercial Truck
Compressed natural Gas (CNG) - Motor Home
Compressed natural Gas (CNG) - Motorcycle
Compressed natural Gas (CNG) - Passenger Car
Compressed natural Gas (CNG) - Passenger Truck
Compressed natural Gas (CNG) - Refuse Truck
Compressed natural Gas (CNG) - School Bus
Compressed natural Gas (CNG) - Single Unit Long-haul Truck
Compressed natural Gas (CNG) - Single Unit Short-haul Truck
Compressed natural Gas (CNG) - Transit Bus
* Road Type
Off-Network
Rural Restricted Access
Rural Unrestricted Access
Urban Restricted Access
Urban Unrestricted Access
* Pollutants and Processes

2011 Ozone Precursor Emission Inventory

Total Gaseous Hydrocarbons - Running Exhaust
Total Gaseous Hydrocarbons - Start Exhaust
Total Gaseous Hydrocarbons - Evap Permeation
Total Gaseous Hydrocarbons - Evap Fuel Vapor Venting
Total Gaseous Hydrocarbons - Evap Fuel Leaks
Total Gaseous Hydrocarbons - Crankcase Running Exhaust
Total Gaseous Hydrocarbons - Crankcase Start Exhaust
Total Gaseous Hydrocarbons - Crankcase Extended Idle Exhaust
Total Gaseous Hydrocarbons - Refueling Displacement Vapor Loss
Total Gaseous Hydrocarbons - Refueling Spillage Loss
Total Gaseous Hydrocarbons - Extended Idle Exhaust
Carbon Monoxide (CO) - Running Exhaust
Carbon Monoxide (CO) - Start Exhaust
Carbon Monoxide (CO) - Crankcase Running Exhaust
Carbon Monoxide (CO) - Crankcase Start Exhaust
Carbon Monoxide (CO) - Crankcase Extended Idle Exhaust
Carbon Monoxide (CO) - Extended Idle Exhaust
Oxides of Nitrogen (NOx) - Running Exhaust
Oxides of Nitrogen (NOx) - Start Exhaust
Oxides of Nitrogen (NOx) - Crankcase Running Exhaust
Oxides of Nitrogen (NOx) - Crankcase Start Exhaust
Oxides of Nitrogen (NOx) - Crankcase Extended Idle Exhaust
Oxides of Nitrogen (NOx) - Extended Idle Exhaust
Methane (CH4) - Running Exhaust
Methane (CH4) - Start Exhaust
Methane (CH4) - Crankcase Running Exhaust
Methane (CH4) - Crankcase Start Exhaust
Methane (CH4) - Crankcase Extended Idle Exhaust
Methane (CH4) - Refueling Displacement Vapor Loss
Methane (CH4) - Refueling Spillage Loss
Methane (CH4) - Extended Idle Exhaust
Non-Methane Hydrocarbons - Running Exhaust
Non-Methane Hydrocarbons - Start Exhaust
Non-Methane Hydrocarbons - Evap Permeation
Non-Methane Hydrocarbons - Evap Fuel Vapor Venting
Non-Methane Hydrocarbons - Evap Fuel Leaks
Non-Methane Hydrocarbons - Crankcase Running Exhaust
Non-Methane Hydrocarbons - Crankcase Start Exhaust
Non-Methane Hydrocarbons - Crankcase Extended Idle Exhaust
Non-Methane Hydrocarbons - Refueling Displacement Vapor Loss
Non-Methane Hydrocarbons - Refueling Spillage Loss
Non-Methane Hydrocarbons - Extended Idle Exhaust
Non-Methane Organic Gases - Running Exhaust
Non-Methane Organic Gases - Start Exhaust
Non-Methane Organic Gases - Evap Permeation
Non-Methane Organic Gases - Evap Fuel Vapor Venting
Non-Methane Organic Gases - Evap Fuel Leaks
Non-Methane Organic Gases - Crankcase Running Exhaust
Non-Methane Organic Gases - Crankcase Start Exhaust
Non-Methane Organic Gases - Crankcase Extended Idle Exhaust
Non-Methane Organic Gases - Refueling Displacement Vapor Loss
Non-Methane Organic Gases - Refueling Spillage Loss
Non-Methane Organic Gases - Extended Idle Exhaust
Total Organic Gases - Running Exhaust
Total Organic Gases - Start Exhaust
Total Organic Gases - Evap Permeation
Total Organic Gases - Evap Fuel Vapor Venting
Total Organic Gases - Evap Fuel Leaks
Total Organic Gases - Crankcase Running Exhaust
Total Organic Gases - Crankcase Start Exhaust
Total Organic Gases - Crankcase Extended Idle Exhaust
Total Organic Gases - Refueling Displacement Vapor Loss
Total Organic Gases - Refueling Spillage Loss
Total Organic Gases - Extended Idle Exhaust
Volatile Organic Compounds - Running Exhaust
Volatile Organic Compounds - Start Exhaust
Volatile Organic Compounds - Evap Permeation
Volatile Organic Compounds - Evap Fuel Vapor Venting
Volatile Organic Compounds - Evap Fuel Leaks
Volatile Organic Compounds - Crankcase Running Exhaust

C–2

February 2014

Volatile Organic Compounds - Crankcase Start Exhaust
Volatile Organic Compounds - Crankcase Extended Idle Exhaust
Volatile Organic Compounds - Refueling Displacement Vapor
Loss
Volatile Organic Compounds - Refueling Spillage Loss
Volatile Organic Compounds - Extended Idle Exhaust
* Manage Input Data Sets
Selections: / StageII_Input / Stage II Refueling Input
* Output
General Output:

2011 Ozone Precursor Emission Inventory

Output Database: pei_mc_2011_may2011_m2010b_out_v1
Units: Mass Units (Grams) | Energy Units (Joules) | Distance
Units (Miles)
Activity: Distance Traveled | Source Hours | Source Hours
Idling | Source Hours Operating | Source Hours
Parked | Population | Starts
Output Emissions Detail:
Always: Time (Month) | Location (NATION) | Pollutant
For All Vehicle/Equipment Categories: Fuel Type | Emission
Process
On Road: SCC

C–3

February 2014

MOVES2010b RunSpec (Maricopa County, December 2011)
<runspec>
<description><![CDATA[MC area for 2011, Emission Inventory]]></description>
<modelscale value="Inv"/>
<modeldomain value="SINGLE"/>
<geographicselections>
<geographicselection type="COUNTY" key="4013" description="ARIZONA - Maricopa County"/>
</geographicselections>
<timespan>
<year key="2011"/>
<month id="12"/>
<day id="2"/>
<day id="5"/>
<beginhour id="1"/>
<endhour id="24"/>
<aggregateBy key="Hour"/>
</timespan>
<onroadvehicleselections>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="11" sourcetypename="Motorcycle"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="21" sourcetypename="Passenger Car"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="31" sourcetypename="Passenger Truck"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="32" sourcetypename="Light Commercial Truck"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="41" sourcetypename="Intercity Bus"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="42" sourcetypename="Transit Bus"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="43" sourcetypename="School Bus"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="51" sourcetypename="Refuse Truck"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="52" sourcetypename="Single Unit Short-haul Truck"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="53" sourcetypename="Single Unit Long-haul Truck"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="54" sourcetypename="Motor Home"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="61" sourcetypename="Combination Short-haul Truck"/>
<onroadvehicleselection fueltypeid="1" fueltypedesc="Gasoline" sourcetypeid="62" sourcetypename="Combination Long-haul Truck"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="11" sourcetypename="Motorcycle"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="21" sourcetypename="Passenger Car"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="31" sourcetypename="Passenger Truck"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="32" sourcetypename="Light Commercial Truck"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="41" sourcetypename="Intercity Bus"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="42" sourcetypename="Transit Bus"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="43" sourcetypename="School Bus"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="51" sourcetypename="Refuse Truck"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="52" sourcetypename="Single Unit Short-haul
Truck"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="53" sourcetypename="Single Unit Long-haul
Truck"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="54" sourcetypename="Motor Home"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="61" sourcetypename="Combination Short-haul
Truck"/>
<onroadvehicleselection fueltypeid="2" fueltypedesc="Diesel Fuel" sourcetypeid="62" sourcetypename="Combination Long-haul
Truck"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="11"
sourcetypename="Motorcycle"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="21" sourcetypename="Passenger
Car"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="31" sourcetypename="Passenger
Truck"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="32" sourcetypename="Light
Commercial Truck"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="41" sourcetypename="Intercity
Bus"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="42" sourcetypename="Transit
Bus"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="43" sourcetypename="School
Bus"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="51" sourcetypename="Refuse
Truck"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="52" sourcetypename="Single Unit
Short-haul Truck"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="53" sourcetypename="Single Unit
Long-haul Truck"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="54" sourcetypename="Motor
Home"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="61" sourcetypename="Combination
Short-haul Truck"/>
<onroadvehicleselection fueltypeid="3" fueltypedesc="Compressed Natural Gas (CNG)" sourcetypeid="62" sourcetypename="Combination
Long-haul Truck"/>
</onroadvehicleselections>
<offroadvehicleselections>
</offroadvehicleselections>
<offroadvehiclesccs>
</offroadvehiclesccs>
<roadtypes>
<roadtype roadtypeid="1" roadtypename="Off-Network"/>
<roadtype roadtypeid="2" roadtypename="Rural Restricted Access"/>
<roadtype roadtypeid="3" roadtypename="Rural Unrestricted Access"/>
<roadtype roadtypeid="4" roadtypename="Urban Restricted Access"/>
<roadtype roadtypeid="5" roadtypename="Urban Unrestricted Access"/>
</roadtypes>
<pollutantprocessassociations>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="1" processname="Running
Exhaust"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="2" processname="Start
Exhaust"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="11" processname="Evap
Permeation"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="12" processname="Evap Fuel

2011 Ozone Precursor Emission Inventory

C–4

February 2014

Vapor Venting"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="13" processname="Evap Fuel
Leaks"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="15" processname="Crankcase
Running Exhaust"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="16" processname="Crankcase
Start Exhaust"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="17" processname="Crankcase
Extended Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="18" processname="Refueling
Displacement Vapor Loss"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="19" processname="Refueling
Spillage Loss"/>
<pollutantprocessassociation pollutantkey="1" pollutantname="Total Gaseous Hydrocarbons" processkey="90" processname="Extended
Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="2" pollutantname="Carbon Monoxide (CO)" processkey="1" processname="Running Exhaust"/>
<pollutantprocessassociation pollutantkey="2" pollutantname="Carbon Monoxide (CO)" processkey="2" processname="Start Exhaust"/>
<pollutantprocessassociation pollutantkey="2" pollutantname="Carbon Monoxide (CO)" processkey="15" processname="Crankcase Running
Exhaust"/>
<pollutantprocessassociation pollutantkey="2" pollutantname="Carbon Monoxide (CO)" processkey="16" processname="Crankcase Start
Exhaust"/>
<pollutantprocessassociation pollutantkey="2" pollutantname="Carbon Monoxide (CO)" processkey="17" processname="Crankcase
Extended Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="2" pollutantname="Carbon Monoxide (CO)" processkey="90" processname="Extended Idle
Exhaust"/>
<pollutantprocessassociation pollutantkey="3" pollutantname="Oxides of Nitrogen (NOx)" processkey="1" processname="Running
Exhaust"/>
<pollutantprocessassociation pollutantkey="3" pollutantname="Oxides of Nitrogen (NOx)" processkey="2" processname="Start
Exhaust"/>
<pollutantprocessassociation pollutantkey="3" pollutantname="Oxides of Nitrogen (NOx)" processkey="15" processname="Crankcase
Running Exhaust"/>
<pollutantprocessassociation pollutantkey="3" pollutantname="Oxides of Nitrogen (NOx)" processkey="16" processname="Crankcase
Start Exhaust"/>
<pollutantprocessassociation pollutantkey="3" pollutantname="Oxides of Nitrogen (NOx)" processkey="17" processname="Crankcase
Extended Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="3" pollutantname="Oxides of Nitrogen (NOx)" processkey="90" processname="Extended Idle
Exhaust"/>
<pollutantprocessassociation pollutantkey="5" pollutantname="Methane (CH4)" processkey="1" processname="Running Exhaust"/>
<pollutantprocessassociation pollutantkey="5" pollutantname="Methane (CH4)" processkey="2" processname="Start Exhaust"/>
<pollutantprocessassociation pollutantkey="5" pollutantname="Methane (CH4)" processkey="15" processname="Crankcase Running
Exhaust"/>
<pollutantprocessassociation pollutantkey="5" pollutantname="Methane (CH4)" processkey="16" processname="Crankcase Start
Exhaust"/>
<pollutantprocessassociation pollutantkey="5" pollutantname="Methane (CH4)" processkey="17" processname="Crankcase Extended Idle
Exhaust"/>
<pollutantprocessassociation pollutantkey="5" pollutantname="Methane (CH4)" processkey="18" processname="Refueling Displacement
Vapor Loss"/>
<pollutantprocessassociation pollutantkey="5" pollutantname="Methane (CH4)" processkey="19" processname="Refueling Spillage
Loss"/>
<pollutantprocessassociation pollutantkey="5" pollutantname="Methane (CH4)" processkey="90" processname="Extended Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="1" processname="Running
Exhaust"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="2" processname="Start
Exhaust"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="11" processname="Evap
Permeation"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="12" processname="Evap Fuel
Vapor Venting"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="13" processname="Evap Fuel
Leaks"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="15" processname="Crankcase
Running Exhaust"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="16" processname="Crankcase
Start Exhaust"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="17" processname="Crankcase
Extended Idle Exhaust"/>

2011 Ozone Precursor Emission Inventory

C–5

February 2014

<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="18" processname="Refueling
Displacement Vapor Loss"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="19" processname="Refueling
Spillage Loss"/>
<pollutantprocessassociation pollutantkey="79" pollutantname="Non-Methane Hydrocarbons" processkey="90" processname="Extended
Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="1" processname="Running
Exhaust"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="2" processname="Start
Exhaust"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="11" processname="Evap
Permeation"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="12" processname="Evap Fuel
Vapor Venting"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="13" processname="Evap Fuel
Leaks"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="15" processname="Crankcase
Running Exhaust"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="16" processname="Crankcase
Start Exhaust"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="17" processname="Crankcase
Extended Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="18" processname="Refueling
Displacement Vapor Loss"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="19" processname="Refueling
Spillage Loss"/>
<pollutantprocessassociation pollutantkey="80" pollutantname="Non-Methane Organic Gases" processkey="90" processname="Extended
Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="1" processname="Running Exhaust"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="2" processname="Start Exhaust"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="11" processname="Evap
Permeation"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="12" processname="Evap Fuel Vapor
Venting"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="13" processname="Evap Fuel
Leaks"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="15" processname="Crankcase Running
Exhaust"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="16" processname="Crankcase Start
Exhaust"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="17" processname="Crankcase
Extended Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="18" processname="Refueling
Displacement Vapor Loss"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="19" processname="Refueling
Spillage Loss"/>
<pollutantprocessassociation pollutantkey="86" pollutantname="Total Organic Gases" processkey="90" processname="Extended Idle
Exhaust"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="1" processname="Running
Exhaust"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="2" processname="Start
Exhaust"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="11" processname="Evap
Permeation"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="12" processname="Evap Fuel
Vapor Venting"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="13" processname="Evap Fuel
Leaks"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="15" processname="Crankcase
Running Exhaust"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="16" processname="Crankcase
Start Exhaust"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="17" processname="Crankcase
Extended Idle Exhaust"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="18" processname="Refueling
Displacement Vapor Loss"/>

2011 Ozone Precursor Emission Inventory

C–6

February 2014

<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="19" processname="Refueling
Spillage Loss"/>
<pollutantprocessassociation pollutantkey="87" pollutantname="Volatile Organic Compounds" processkey="90" processname="Extended
Idle Exhaust"/>
</pollutantprocessassociations>
<databaseselections>
<databaseselection servername="" databasename="StageII_Input" description="Stage II Refueling Input"/>
</databaseselections>
<internalcontrolstrategies>
<internalcontrolstrategy
classname="gov.epa.otaq.moves.master.implementation.ghg.internalcontrolstrategies.rateofprogress.RateOfProgressStrategy"><![CDATA
[
useParameters
No
]]></internalcontrolstrategy>
</internalcontrolstrategies>
<inputdatabase servername="" databasename="" description=""/>
<uncertaintyparameters uncertaintymodeenabled="false" numberofrunspersimulation="0" numberofsimulations="0"/>
<geographicoutputdetail description="LINK"/>
<outputemissionsbreakdownselection>
<modelyear selected="false"/>
<fueltype selected="true"/>
<emissionprocess selected="true"/>
<onroadoffroad selected="true"/>
<roadtype selected="true"/>
<sourceusetype selected="false"/>
<movesvehicletype selected="false"/>
<onroadscc selected="true"/>
<offroadscc selected="false"/>
<estimateuncertainty selected="false" numberOfIterations="2" keepSampledData="false" keepIterations="false"/>
<sector selected="false"/>
<engtechid selected="false"/>
<hpclass selected="false"/>
</outputemissionsbreakdownselection>
<outputdatabase servername="" databasename="pei_mc_2011_may2011_m2010b_out_v1" description=""/>
<outputtimestep value="Month"/>
<outputvmtdata value="true"/>
<outputsho value="true"/>
<outputsh value="true"/>
<outputshp value="true"/>
<outputshidling value="true"/>
<outputstarts value="true"/>
<outputpopulation value="true"/>
<scaleinputdatabase servername="localhost" databasename="pei_mc_2011_may2011_m2010b_in_v1" description=""/>
<pmsize value="0"/>
<outputfactors>
<timefactors selected="true" units="Months"/>
<distancefactors selected="true" units="Miles"/>
<massfactors selected="true" units="Grams" energyunits="Joules"/>
</outputfactors>
<savedata>
</savedata>
<donotexecute>
</donotexecute>
<generatordatabase shouldsave="false" servername="" databasename="" description=""/>
<donotperformfinalaggregation selected="false"/>
<lookuptableflags scenarioid="pei_mc_2011_may2011_m2010b_in_v1" truncateoutput="true" truncateactivity="true"/>
</runspec>

2011 Ozone Precursor Emission Inventory

C–7

February 2014

MOVES2010b Local Input Data (Maricopa County, December 2011)
[FuelFormulation]
Fuel
Fuel
Formulatio Subtyp
n
e
11100
12
11101
12
11102
13
11103
12
11104
14
11105
12
11106
11
11107
14
11108
11
11109
14
11110
13
11111
13
11112
12
21100
12
21101
12
21102
13
21103
12
21104
14
21105
12
21106
11
21107
14
21108
11
21109
14
21110
13
21111
13
21112
12
31000
20
31001
20
31002
20
31003
20
31004
20
31005
20
31006
20
31007
20
31008
20
31009
20
31010
20
31011
20
31012
20
30
30

RVP
8.02
8.81
8.79
10.7
6.94
8.02
6.54
6.80
6.64
6.69
8.16
8.49
8.53
8.02
8.81
8.79
10.7
6.94
8.02
6.54
6.80
6.64
6.69
8.16
8.49
8.53
0
0
0
0
0
0
0
0
0
0
0
0
0
0

MTBE
Sulfur ETOH Volum
Level Volume
e
20.2
10.
0
15.4
10.
0
14.7
10.
0
15.0
10.
0
24.6
10.
0
26.0
10.
0
22.0
10.
0
23.3
10.
0
27.2
10.
0
24.5
10.
0
19.3
10.
0
18.7
10.
0
16.3
10.
0
20.2
0.0
0
15.4
0.0
0
14.7
0.0
0
15.0
0.0
0
24.6
0.0
0
26.0
0.0
0
22.0
0.0
0
23.3
0.0
0
27.2
0.0
0
24.5
0.0
0
19.3
0.0
0
18.7
0.0
0
16.3
0.0
0
5.71
0
0
5.25
0
0
5.58
0
0
5.88
0
0
5.00
0
0
5.00
0
0
5.00
0
0
5.00
0
0
5.00
0
0
5.00
0
0
5.88
0
0
7.10
0
0
5.60
0
0
0
0
0

ETBE
Volume
0.00194
0
0
0
0.00428
0
0
0
0.02142
0
0
0
0
0.00194
0
0
0
0.00428
0
0
0
0.02142
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

TAME
Volume
0.05179
0
0
0
0.11395
0
0
0.36666
0.08571
0.11739
0
0
0
0.05179
0
0
0
0.11395
0
0
0.36666
0.08571
0.11739
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Aromati Olefin Benzen
c
Conten
e
Content
t
Content
19.6
9.2
1.2
17.5
6.5
0.9
20.1
9.1
0.9
31.9
14.
1.9
19.6
9.9
0.9
19.9
6.8
0.8
17.6
10.
0.7
21.4
10.
1.2
19.9
11.
0.8
19.2
10.
0.7
17.0
8.5
0.9
15.2
6.4
0.8
16.0
6.4
3.7
19.6
9.2
1.2
17.5
6.5
0.9
20.1
9.1
0.9
31.9
14.
1.9
19.6
9.9
0.9
19.9
6.8
0.8
17.6
10.
0.7
21.4
10.
1.2
19.9
11.
0.8
19.2
10.
0.7
17.0
8.5
0.9
15.2
6.4
0.8
16.0
6.4
3.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

e20
0
47.9
53.3
54.6
54.0
42.7
46.0
45.0
44.3
39.0
39.3
47.8
51.5
51.6
47.9
53.3
54.6
54.0
42.7
46.0
45.0
44.3
39.0
39.3
47.8
51.5
51.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0

e30
volToWt
0
PercentOxy
88.0
2.1717
90.7
3.7575
89.4
3.1457
86.0
3.5900
86.7
0.7805
90.0
3.7400
85.5
0.0000
86.0
0.1000
86.3
0.0171
85.8
0.0454
88.3
2.6418
90.1
3.2706
90.3
3.5806
88.0
2.1717
90.7
3.7575
89.4
3.1457
86.0
3.5900
86.7
0.7805
90.0
3.7400
85.5
0.0000
86.0
0.1000
86.3
0.0171
85.8
0.0454
88.3
2.6418
90.1
3.2706
90.3
3.5806
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

BioDiese
PAH
Cetane Conten
l
Index
Ester
t
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

T50
197.721
185.333
177.636
170
212.908
210
209
212
217
216.543
195.941
191.117
190.363
197.721
185.333
177.636
170
212.908
210
209
212
217
216.543
195.941
191.117
190.363
0
0
0
0
0
0
0
0
0
0
0
0
0
0

T90
309.431
295.25
302.727
317
315.856
297
320
322
319
321.282
310.647
300.294
298.545
309.431
295.25
302.727
317
315.856
297
320
322
319
321.282
310.647
300.294
298.545
0
0
0
0
0
0
0
0
0
0
0
0
0
0

[HPMSvTypeYear]
HPMSVtypeID
10
20
30
40
50
60

yearID
2011
2011
2011
2011
2011
2011

VMTGrowthFactor
0
0
0
0
0
0

HPMSBaseYearVMT
623037600.1
15806675171
12967244959
118381498.4
1281267928
1646318085

baseYearOffNetVMT
0
0
0
0
0
0

[SourceTypeYear]
yearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

sourceTypeID
11
21
31
32
41
42
43
51
52
53
54
61
62

sourceTypePopulation
75309
2044983
440595.7
172099
1172.42
718.58
7592.578
585.7895
21663.06
1344.71
3344.705
9859.552
8092.895

2011 Ozone Precursor Emission Inventory

C–8

February 2014

[FuelSupply]
countyID
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013

fuelYearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

[ZoneMonthHour]
monthGroupID
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
9
9
9
9
10
10
10
10
11
11
11
11
12
12
12
12

fuelFormulationID
21101
11101
31001
30
21102
11102
31002
30
21103
11103
31003
30
21104
11104
31004
30
21105
11105
31005
30
21106
11106
31006
30
21107
11107
31007
30
21108
11108
31008
30
21109
11109
31009
30
21110
11110
31010
30
21111
11111
31011
30
21112
11112
31012
30

2011 Ozone Precursor Emission Inventory

marketShare
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1
0.05
0.95
1
1

marketShareCV
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5

C–9

monthID
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

zoneID
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130
40130

HourID temperature relHumidity
1
48
62
2
47
65
3
47
64
4
47
64
5
46
66
6
46
66
7
45
68
8
46
67
9
48
62
10
52
54
11
55
48
12
57
43
13
59
40
14
60
38
15
61
36
16
62
35
17
61
37
18
58
42
19
56
47
20
54
51
21
53
52
22
52
56
23
50
59
24
49
60
1
48
62

February 2014

[SourceTypeAgeDistribution]
Source
TypeID
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31
31

YearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

AgeID
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

AgeFraction
0.029892
0.036417
0.083781
0.101569
0.116094
0.105884
0.08115
0.058941
0.067783
0.054942
0.046522
0.038838
0.031681
0.023471
0.018524
0.017472
0.014525
0.011157
0.010525
0.007262
0.005157
0.005263
0.005052
0.004631
0.004245
0.003891
0.003567
0.00327
0.002997
0.002748
0.002748
0.043696
0.053295
0.042596
0.068793
0.083192
0.080592
0.077392
0.070493
0.065393
0.061294
0.056294
0.051995
0.043696
0.034097
0.029997
0.022198
0.021098
0.015798
0.012199
0.009499
0.008099
0.006399
0.005299
0.004
0.003019
0.002278
0.001719
0.001298
0.000979
0.000739
0.022565
0.040367
0.036952
0.023272
0.060977
0.080902
0.086168
0.070426
0.071799
0.060662
0.054761
0.061661
0.055069
0.041776
0.034756
0.036143
0.02573
0.02484
0.022254
0.014775
0.010328
0.008996
0.007982
0.008785

Source
TypeID
31
31
31
31
31
31
31
31
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42

2011 Ozone Precursor Emission Inventory

YearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

AgeID
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14

AgeFraction
0.006661
0.005076
0.003888
0.003002
0.002329
0.001818
0.001418
0.036429
0.043709
0.037275
0.024506
0.063116
0.086828
0.091952
0.071425
0.069687
0.057689
0.051358
0.058053
0.055657
0.041337
0.03425
0.036441
0.02487
0.023712
0.02089
0.013959
0.009727
0.008543
0.007639
0.00826
0.006259
0.004777
0.00368
0.002847
0.002226
0.001755
0.001411
0.036162
0.038296
0.015698
0.027397
0.064494
0.149585
0.139386
0.09579
0.060294
0.043396
0.034397
0.044396
0.055294
0.052495
0.028097
0.027297
0.025797
0.024298
0.014999
0.009599
0.007199
0.006299
0.009299
0.006299
0.0048
0.003657
0.002786
0.002123
0.001617
0.001232
0.000939
0.002744
0.038296
0.015698
0.027397
0.064494
0.149585
0.139386
0.09579
0.060294
0.043396
0.034397
0.044396
0.055294
0.052495
0.028097
0.027297

C–10

Source
TypeID
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
52
52
52
52
52
52
52

YearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

AgeID
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6

AgeFraction
0.025797
0.024298
0.014999
0.009599
0.007199
0.006299
0.009299
0.006299
0.0048
0.003657
0.002786
0.002123
0.001617
0.001232
0.000939
0.002744
0.075389
0.040094
0.037195
0.085088
0.147379
0.151778
0.083488
0.051493
0.030696
0.020197
0.024996
0.063691
0.038794
0.030796
0.041094
0.017397
0.013008
0.00801
0.005722
0.003933
0.004121
0.004475
0.003412
0.002644
0.002026
0.001526
0.001172
0.000893
0.000686
0.000527
0.008281
0.075401
0.0401
0.0372
0.085101
0.147402
0.151802
0.083501
0.051501
0.0307
0.0202
0.025
0.063701
0.0388
0.0308
0.0411
0.0174
0.013199
0.008099
0.0059
0.003999
0.004199
0.004499
0.003399
0.002599
0.001988
0.00152
0.001162
0.000889
0.00068
0.00052
0.007638
0.066214
0.039334
0.03318
0.078132
0.128378
0.132775
0.079084

February 2014

Source
TypeID
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
52
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53
53

YearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

AgeID
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

AgeFraction
0.056074
0.038042
0.02878
0.034102
0.060507
0.038954
0.031317
0.039113
0.019306
0.016191
0.011791
0.008363
0.005691
0.005513
0.005414
0.004802
0.003655
0.00283
0.002259
0.00176
0.001429
0.001176
0.001073
0.02476
0.074869
0.040084
0.036613
0.08406
0.144792
0.148968
0.082261
0.050975
0.030557
0.02016
0.024955
0.062595
0.038177
0.030303
0.040308
0.017217
0.013996
0.008668
0.006817
0.004401
0.004658
0.004706
0.003492
0.002575
0.002017
0.001726
0.001332

Source
TypeID
53
53
53
53
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
61
61
61
61
61
61
61
61
61
61
61
61
61
61
61
61

2011 Ozone Precursor Emission Inventory

YearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

AgeID
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

AgeFraction
0.001106
0.000916
0.000861
0.015836
0.075419
0.04011
0.037209
0.085122
0.147438
0.151839
0.083521
0.051513
0.030708
0.020205
0.025006
0.063716
0.03881
0.030808
0.04111
0.017404
0.012531
0.007698
0.005268
0.003727
0.003917
0.004384
0.003365
0.002681
0.002082
0.001515
0.00117
0.000884
0.000678
0.000526
0.009633
0.075521
0.040164
0.03726
0.085237
0.147637
0.152044
0.083634
0.051583
0.030749
0.020232
0.02504
0.063802
0.038862
0.030849
0.041166
0.017428

C–11

Source
TypeID
61
61
61
61
61
61
61
61
61
61
61
61
61
61
61
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62

YearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

AgeID
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

AgeFraction
0.013144
0.00788
0.005826
0.003897
0.004157
0.004432
0.003239
0.002455
0.001916
0.001465
0.001114
0.000846
0.00063
0.000485
0.007306
0.075452
0.040127
0.037225
0.085158
0.147501
0.151904
0.083557
0.051535
0.030721
0.020214
0.025017
0.063744
0.038827
0.030821
0.041128
0.017412
0.013178
0.008015
0.005871
0.003959
0.00418
0.00447
0.003336
0.00254
0.001955
0.001495
0.001141
0.00087
0.000659
0.000505
0.007485

February 2014

[IMCoverage]
polProcess
ID
101
101
101
101
101
101
101
101
101
101
102
102
102
102
102
102
102
102
102
102
112
112
112
112
112
112
112
113
113
113
113
113
113
113
201
201
201
201
201
201
201
201
201
201
202
202
202
202
202
202
202
202
202
202
301
301
301
301
301
301
301
301
301
301
302
302
302
302
302
302
302
302
302
302
101
101
101
101
101
101
101
101
101
101
102
102
102
102
102
102
102

State
ID
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

County
ID
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013

yearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

sourceTypeID
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
31
31
32
32
52
21
21
31
31
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32

fuelTypeID
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

2011 Ozone Precursor Emission Inventory

IMProgramID
3
6
10
3
6
10
3
6
10
3
3
6
10
3
6
10
3
6
10
3
8
9
8
9
8
9
7
8
9
8
9
8
9
7
3
6
10
3
6
10
3
6
10
3
3
6
10
3
6
10
3
6
10
3
3
6
10
3
6
10
3
6
10
3
3
6
10
3
6
10
3
6
10
3
103
106
110
103
106
110
103
106
110
103
103
106
110
103
106
110
103

Beg
ModelYearID
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1996
1981
1996
1981
1996
1981
1967
1996
1981
1996
1981
1996
1981
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967

C–12

End
ModelYearID
1980
1995
2005
1980
1995
2005
1980
1995
2005
2005
1980
1995
2005
1980
1995
2005
1980
1995
2005
2005
2005
1995
2005
1995
2005
1995
2005
2005
1995
2005
1995
2005
1995
2005
1980
1995
2005
1980
1995
2005
1980
1995
2005
2005
1980
1995
2005
1980
1995
2005
1980
1995
2005
2005
1980
1995
2005
1980
1995
2005
1980
1995
2005
2005
1980
1995
2005
1980
1995
2005
1980
1995
2005
2005
1980
1995
2007
1980
1995
2007
1980
1995
2007
2007
1980
1995
2007
1980
1995
2007
1980

inspectFreq
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1
2
2
1
2
1
2
1
2
1
1
2
1
2
1
2
1
1
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1

Test
StandardsID useIMyn
13
N
33
N
51
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
43
N
44
N
43
N
44
N
43
N
44
N
41
N
43
N
44
N
43
N
44
N
43
N
44
N
41
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
33
N
51
N
13
N
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y

Compliance
Factor
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
95.8845
57.6164
64.12
90.0428
57.6164
64.12
90.0428
57.6164
64.12
90.0428
87.2032
57.6164
64.12
90.0428
57.6164
64.12
90.0428
57.6164

February 2014

polProcess
ID
102
102
102
112
112
112
112
112
112
112
113
113
113
113
113
113
113
201
201
201
201
201
201
201
201
201
201
202
202
202
202
202
202
202
202
202
202
301
301
301
301
301
301
301
301
301
301
302
302
302
302
302
302
302
302
302
302

State
ID
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

County
ID
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013

yearID
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011
2011

sourceTypeID
32
32
52
21
21
31
31
32
32
52
21
21
31
31
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32
32
32
52
21
21
21
31
31
31
32
32
32
52

fuelTypeID
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

2011 Ozone Precursor Emission Inventory

IMProgramID
106
110
103
108
109
108
109
108
109
107
108
109
108
109
108
109
107
103
106
110
103
106
110
103
106
110
103
103
106
110
103
106
110
103
106
110
103
103
106
110
103
106
110
103
106
110
103
103
106
110
103
106
110
103
106
110
103

Beg
ModelYearID
1981
1996
1967
1996
1981
1996
1981
1996
1981
1981
1996
1981
1996
1981
1996
1981
1981
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967
1967
1981
1996
1967
1981
1996
1967
1981
1996
1967

C–13

End
ModelYearID
1995
2007
2007
2007
1995
2007
1995
2007
1995
2007
2007
1995
2007
1995
2007
1995
2007
1980
1995
2007
1980
1995
2007
1980
1995
2007
2007
1980
1995
2007
1980
1995
2007
1980
1995
2007
2007
1980
1995
2007
1980
1995
2007
1980
1995
2007
2007
1980
1995
2007
1980
1995
2007
1980
1995
2007
2007

inspectFreq
2
2
1
2
2
2
2
2
2
1
2
2
2
2
2
2
1
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1
2
2
1
1
2
2
1
2
2
1
2
2
1

Test
StandardsID useIMyn
31
Y
51
Y
13
Y
43
Y
44
Y
43
Y
44
Y
43
Y
44
Y
41
Y
43
Y
44
Y
43
Y
44
Y
43
Y
44
Y
41
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y
31
Y
51
Y
13
Y

Compliance
Factor
64.12
90.0428
87.2032
83.814
64.12
83.814
64.12
83.814
64.12
86.2872
83.814
64.12
83.814
64.12
83.814
64.12
86.2872
57.6164
64.12
90.0428
57.6164
64.12
90.0428
57.6164
64.12
90.0428
87.2032
57.6164
64.12
90.0428
57.6164
64.12
90.0428
57.6164
64.12
90.0428
87.2032
57.6164
64.12
90.0428
57.6164
64.12
90.0428
57.6164
64.12
90.0428
87.2032
57.6164
64.12
90.0428
57.6164
64.12
90.0428
57.6164
64.12
90.0428
87.2032

February 2014

[RoadType]
roadTypeID
2
4

rampFraction
0.054636
0.111569

[RoadTypeDistribution]
sourceTypeID
11
11
11
11
11
21
21
21
21
21
31
31
31
31
31
32
32
32
32
32
41
41
41
41
41
42
42
42
42
42
43
43
43
43
43
51
51
51
51
51
52
52
52
52
52
53
53
53
53
53
54
54
54
54
54
61
61
61
61
61
62
62
62
62
62

roadTypeID
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5

roadTypeVMTFraction
0
0.013318
0.05643
0.290786
0.639467
0
0.021036
0.039609
0.296909
0.642446
0
0.050257
0.044142
0.371289
0.534312
0
0.050257
0.044142
0.371289
0.534312
0
0.030808
0.032603
0.500175
0.436415
0
0.030808
0.032603
0.500175
0.436415
0
0.030808
0.032603
0.500175
0.436415
0
0.043408
0.027296
0.52444
0.404856
0
0.043408
0.027296
0.52444
0.404856
0
0.043408
0.027296
0.52444
0.404856
0
0.043408
0.027296
0.52444
0.404856
0
0.081128
0.02854
0.528464
0.361868
0
0.081128
0.02854
0.528464
0.361868

2011 Ozone Precursor Emission Inventory

C–14

February 2014

[MonthVMTFraction]
sourceTypeID
11
21
31
32
41
42
43
51
52
53
54
61
62

isLeapYear
N
N
N
N
N
N
N
N
N
N
N
N
N

monthID
12
12
12
12
12
12
12
12
12
12
12
12
12

monthVMTFraction
0.083229
0.083229
0.083229
0.083229
0.083229
0.083229
0.083229
0.083229
0.083229
0.083229
0.083229
0.083229
0.083229

[DayVMTFraction]
Source Month Road
Day
TypeID ID
TypeID dayID VMTFraction
11
12
1
5
0.767488
21
12
1
5
0.767488
31
12
1
5
0.767488
32
12
1
5
0.767488
41
12
1
5
0.767488
42
12
1
5
0.767488
43
12
1
5
0.767488
51
12
1
5
0.767488
52
12
1
5
0.767488
53
12
1
5
0.767488
54
12
1
5
0.767488
61
12
1
5
0.767488
62
12
1
5
0.767488
11
12
2
5
0.768458
21
12
2
5
0.768458
31
12
2
5
0.768458
32
12
2
5
0.768458
41
12
2
5
0.768458
42
12
2
5
0.768458
43
12
2
5
0.768458
51
12
2
5
0.768458
52
12
2
5
0.768458
53
12
2
5
0.768458
54
12
2
5
0.768458
61
12
2
5
0.768458
62
12
2
5
0.768458
11
12
3
5
0.766507
21
12
3
5
0.766507
31
12
3
5
0.766507
32
12
3
5
0.766507
41
12
3
5
0.766507
42
12
3
5
0.766507
43
12
3
5
0.766507
51
12
3
5
0.766507
52
12
3
5
0.766507
53
12
3
5
0.766507
54
12
3
5
0.766507
61
12
3
5
0.766507
62
12
3
5
0.766507
11
12
4
5
0.768458
21
12
4
5
0.768458
31
12
4
5
0.768458
32
12
4
5
0.768458
41
12
4
5
0.768458
42
12
4
5
0.768458

Source Month Road
Day
TypeID ID
TypeID dayID VMTFraction
43
12
4
5
0.768458
51
12
4
5
0.768458
52
12
4
5
0.768458
53
12
4
5
0.768458
54
12
4
5
0.768458
61
12
4
5
0.768458
62
12
4
5
0.768458
11
12
5
5
0.766507
21
12
5
5
0.766507
31
12
5
5
0.766507
32
12
5
5
0.766507
41
12
5
5
0.766507
42
12
5
5
0.766507
43
12
5
5
0.766507
51
12
5
5
0.766507
52
12
5
5
0.766507
53
12
5
5
0.766507
54
12
5
5
0.766507
61
12
5
5
0.766507
62
12
5
5
0.766507
11
12
1
2
0.232512
21
12
1
2
0.232512
31
12
1
2
0.232512
32
12
1
2
0.232512
41
12
1
2
0.232512
42
12
1
2
0.232512
43
12
1
2
0.232512
51
12
1
2
0.232512
52
12
1
2
0.232512
53
12
1
2
0.232512
54
12
1
2
0.232512
61
12
1
2
0.232512
62
12
1
2
0.232512
11
12
2
2
0.231542
21
12
2
2
0.231542
31
12
2
2
0.231542
32
12
2
2
0.231542
41
12
2
2
0.231542
42
12
2
2
0.231542
43
12
2
2
0.231542
51
12
2
2
0.231542
52
12
2
2
0.231542
53
12
2
2
0.231542
54
12
2
2
0.231542
61
12
2
2
0.231542

2011 Ozone Precursor Emission Inventory

C–15

Source Month Road
Day
TypeID ID
TypeID dayID VMTFraction
62
12
2
2
0.231542
11
12
3
2
0.233493
21
12
3
2
0.233493
31
12
3
2
0.233493
32
12
3
2
0.233493
41
12
3
2
0.233493
42
12
3
2
0.233493
43
12
3
2
0.233493
51
12
3
2
0.233493
52
12
3
2
0.233493
53
12
3
2
0.233493
54
12
3
2
0.233493
61
12
3
2
0.233493
62
12
3
2
0.233493
11
12
4
2
0.231542
21
12
4
2
0.231542
31
12
4
2
0.231542
32
12
4
2
0.231542
41
12
4
2
0.231542
42
12
4
2
0.231542
43
12
4
2
0.231542
51
12
4
2
0.231542
52
12
4
2
0.231542
53
12
4
2
0.231542
54
12
4
2
0.231542
61
12
4
2
0.231542
62
12
4
2
0.231542
11
12
5
2
0.233493
21
12
5
2
0.233493
31
12
5
2
0.233493
32
12
5
2
0.233493
41
12
5
2
0.233493
42
12
5
2
0.233493
43
12
5
2
0.233493
51
12
5
2
0.233493
52
12
5
2
0.233493
53
12
5
2
0.233493
54
12
5
2
0.233493
61
12
5
2
0.233493
62
12
5
2
0.233493

February 2014

[HourVMTFraction] (SourceTypeID 21: Passenger Car)
Source Road
TypeID TypeID dayID hourID
21
1
5
1
21
1
5
2
21
1
5
3
21
1
5
4
21
1
5
5
21
1
5
6
21
1
5
7
21
1
5
8
21
1
5
9
21
1
5
10
21
1
5
11
21
1
5
12
21
1
5
13
21
1
5
14
21
1
5
15
21
1
5
16
21
1
5
17
21
1
5
18
21
1
5
19
21
1
5
20
21
1
5
21
21
1
5
22
21
1
5
23
21
1
5
24
21
2
5
1
21
2
5
2
21
2
5
3
21
2
5
4
21
2
5
5
21
2
5
6
21
2
5
7
21
2
5
8
21
2
5
9
21
2
5
10
21
2
5
11
21
2
5
12
21
2
5
13
21
2
5
14
21
2
5
15
21
2
5
16
21
2
5
17
21
2
5
18
21
2
5
19
21
2
5
20
21
2
5
21
21
2
5
22
21
2
5
23
21
2
5
24
21
3
5
1
21
3
5
2
21
3
5
3
21
3
5
4
21
3
5
5
21
3
5
6
21
3
5
7
21
3
5
8
21
3
5
9
21
3
5
10
21
3
5
11
21
3
5
12
21
3
5
13
21
3
5
14
21
3
5
15
21
3
5
16
21
3
5
17
21
3
5
18
21
3
5
19
21
3
5
20
21
3
5
21
21
3
5
22
21
3
5
23
21
3
5
24
21
4
5
1
21
4
5
2
21
4
5
3
21
4
5
4
21
4
5
5
21
4
5
6
21
4
5
7
21
4
5
8
21
4
5
9
21
4
5
10
21
4
5
11
21
4
5
12
21
4
5
13

hourVMT
Fraction
0.007957
0.005448
0.004973
0.006014
0.013468
0.034281
0.054676
0.06466
0.060292
0.052697
0.050973
0.054873
0.057626
0.059009
0.064762
0.06924
0.070039
0.07009
0.05904
0.04192
0.033428
0.029157
0.02144
0.013936
0.009807
0.006923
0.00651
0.007961
0.017302
0.042783
0.060321
0.059377
0.057361
0.055026
0.052104
0.05478
0.05683
0.059985
0.065538
0.065523
0.061668
0.059173
0.054281
0.040837
0.033031
0.030836
0.024921
0.017121
0.006081
0.003952
0.003413
0.004039
0.009578
0.025656
0.04895
0.07002
0.063264
0.050335
0.049826
0.054967
0.058433
0.058019
0.063976
0.073011
0.07853
0.081166
0.063868
0.043018
0.033831
0.027454
0.017909
0.010705
0.009807
0.006923
0.00651
0.007961
0.017302
0.042783
0.060321
0.059377
0.057361
0.055026
0.052104
0.05478
0.05683

Source Road
TypeID TypeID dayID hourID
21
4
5
14
21
4
5
15
21
4
5
16
21
4
5
17
21
4
5
18
21
4
5
19
21
4
5
20
21
4
5
21
21
4
5
22
21
4
5
23
21
4
5
24
21
5
5
1
21
5
5
2
21
5
5
3
21
5
5
4
21
5
5
5
21
5
5
6
21
5
5
7
21
5
5
8
21
5
5
9
21
5
5
10
21
5
5
11
21
5
5
12
21
5
5
13
21
5
5
14
21
5
5
15
21
5
5
16
21
5
5
17
21
5
5
18
21
5
5
19
21
5
5
20
21
5
5
21
21
5
5
22
21
5
5
23
21
5
5
24
21
1
2
1
21
1
2
2
21
1
2
3
21
1
2
4
21
1
2
5
21
1
2
6
21
1
2
7
21
1
2
8
21
1
2
9
21
1
2
10
21
1
2
11
21
1
2
12
21
1
2
13
21
1
2
14
21
1
2
15
21
1
2
16
21
1
2
17
21
1
2
18
21
1
2
19
21
1
2
20
21
1
2
21
21
1
2
22
21
1
2
23
21
1
2
24
21
2
2
1
21
2
2
2
21
2
2
3
21
2
2
4
21
2
2
5
21
2
2
6
21
2
2
7
21
2
2
8
21
2
2
9
21
2
2
10
21
2
2
11
21
2
2
12
21
2
2
13
21
2
2
14
21
2
2
15
21
2
2
16
21
2
2
17
21
2
2
18
21
2
2
19
21
2
2
20
21
2
2
21
21
2
2
22
21
2
2
23
21
2
2
24
21
3
2
1
21
3
2
2

hourVMT
Fraction
0.059985
0.065538
0.065523
0.061668
0.059173
0.054281
0.040837
0.033031
0.030836
0.024921
0.017121
0.006081
0.003952
0.003413
0.004039
0.009578
0.025656
0.04895
0.07002
0.063264
0.050335
0.049826
0.054967
0.058433
0.058019
0.063976
0.073011
0.07853
0.081166
0.063868
0.043018
0.033831
0.027454
0.017909
0.010705
0.020872
0.014804
0.013016
0.010079
0.011715
0.018691
0.027033
0.033174
0.040089
0.048519
0.05524
0.060009
0.064796
0.06555
0.064719
0.064355
0.064852
0.064713
0.061678
0.050477
0.043519
0.040777
0.035718
0.025605
0.020431
0.014508
0.012577
0.009828
0.011013
0.01751
0.025995
0.031456
0.038799
0.047714
0.054712
0.060251
0.065575
0.066506
0.065746
0.065312
0.065948
0.066767
0.064137
0.050196
0.042573
0.040589
0.036012
0.025845
0.021315
0.015101

Source Road
TypeID TypeID dayID hourID
21
3
2
3
21
3
2
4
21
3
2
5
21
3
2
6
21
3
2
7
21
3
2
8
21
3
2
9
21
3
2
10
21
3
2
11
21
3
2
12
21
3
2
13
21
3
2
14
21
3
2
15
21
3
2
16
21
3
2
17
21
3
2
18
21
3
2
19
21
3
2
20
21
3
2
21
21
3
2
22
21
3
2
23
21
3
2
24
21
4
2
1
21
4
2
2
21
4
2
3
21
4
2
4
21
4
2
5
21
4
2
6
21
4
2
7
21
4
2
8
21
4
2
9
21
4
2
10
21
4
2
11
21
4
2
12
21
4
2
13
21
4
2
14
21
4
2
15
21
4
2
16
21
4
2
17
21
4
2
18
21
4
2
19
21
4
2
20
21
4
2
21
21
4
2
22
21
4
2
23
21
4
2
24
21
5
2
1
21
5
2
2
21
5
2
3
21
5
2
4
21
5
2
5
21
5
2
6
21
5
2
7
21
5
2
8
21
5
2
9
21
5
2
10
21
5
2
11
21
5
2
12
21
5
2
13
21
5
2
14
21
5
2
15
21
5
2
16
21
5
2
17
21
5
2
18
21
5
2
19
21
5
2
20
21
5
2
21
21
5
2
22
21
5
2
23
21
5
2
24

hourVMT
Fraction
0.013457
0.010331
0.01242
0.019876
0.028075
0.034899
0.041383
0.049326
0.05577
0.059766
0.064014
0.064591
0.063689
0.063394
0.063753
0.062652
0.05921
0.050759
0.044469
0.040966
0.035423
0.025364
0.020431
0.014508
0.012577
0.009828
0.011013
0.01751
0.025995
0.031456
0.038799
0.047714
0.054712
0.060251
0.065575
0.066506
0.065746
0.065312
0.065948
0.066767
0.064137
0.050196
0.042573
0.040589
0.036012
0.025845
0.021315
0.015101
0.013457
0.010331
0.01242
0.019876
0.028075
0.034899
0.041383
0.049326
0.05577
0.059766
0.064014
0.064591
0.063689
0.063394
0.063753
0.062652
0.05921
0.050759
0.044469
0.040966
0.035423
0.025364

[AvgSpeedDistribution] (SourceTypeID 21: Passenger Car and RoadTypeID 2: Rural Restricted Access)
Source Road
Hour
TypeID TypeID DayID
21
2
15
21
2
15

avgSpeed
BinID
1
2

avgSpeed
Fraction
2.51E-05
0

Source Road
Hour
TypeID TypeID DayID
21
2
15
21
2
15

2011 Ozone Precursor Emission Inventory

avgSpeed
BinID
3
4

C–16

avgSpeed
Fraction
0
0

Source Road
Hour
TypeID TypeID DayID
21
2
15
21
2
15

avgSpeed
BinID
5
6

avgSpeed
Fraction
0
0

February 2014

Source Road
Hour
TypeID TypeID DayID
21
2
15
21
2
15
21
2
15
21
2
15
21
2
15
21
2
15
21
2
15
21
2
15
21
2
15
21
2
15
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
25
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
35
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
45
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
55
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65
21
2
65

avgSpeed
BinID
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13

avgSpeed
Fraction
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194

Source Road
Hour
TypeID TypeID DayID
21
2
65
21
2
65
21
2
65
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
75
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
85
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
95
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
105
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
115
21
2
125
21
2
125
21
2
125
21
2
125

2011 Ozone Precursor Emission Inventory

avgSpeed
BinID
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4

C–17

avgSpeed
Fraction
0.083438
0.102646
0.160812
1.98E-05
0
0
0
0
0
0
0
0
0.057069
0.140623
0.248507
0.169045
0.075169
0.111641
0.197927
1.98E-05
0
0
0
0
0
0
0
0
0.057069
0.140623
0.248507
0.169045
0.075169
0.111641
0.197927
1.98E-05
0
0
0
0
0
0
0
0
0.057069
0.140623
0.248507
0.169045
0.075169
0.111641
0.197927
1.78E-05
0
0
0
0
0
0
0
0
0.059729
0.129919
0.24385
0.049713
0.140357
0.191024
0.18539
1.78E-05
0
0
0
0
0
0
0
0
0.059729
0.129919
0.24385
0.049713
0.140357
0.191024
0.18539
1.78E-05
0
0
0

Source Road
Hour
TypeID TypeID DayID
21
2
125
21
2
125
21
2
125
21
2
125
21
2
125
21
2
125
21
2
125
21
2
125
21
2
125
21
2
125
21
2
125
21
2
125
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
135
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
145
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
155
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
165
21
2
175
21
2
175
21
2
175
21
2
175
21
2
175
21
2
175
21
2
175
21
2
175
21
2
175
21
2
175
21
2
175

avgSpeed
BinID
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11

avgSpeed
Fraction
0
0
0
0
0
0.059729
0.129919
0.24385
0.049713
0.140357
0.191024
0.18539
1.78E-05
0
0
0
0
0
0
0
0
0.059729
0.129919
0.24385
0.049713
0.140357
0.191024
0.18539
1.78E-05
0
0
0
0
0
0
0
0
0.059729
0.129919
0.24385
0.049713
0.140357
0.191024
0.18539
1.78E-05
0
0
0
0
0
0
0
0
0.059729
0.129919
0.24385
0.049713
0.140357
0.191024
0.18539
1.69E-05
0
0
0
0
0
0
0
0
0
0
0.000288
0.094046
0.274366
0.241766
0.389518
1.69E-05
0
0
0
0
0
0
0
0
0
0

February 2014

Source Road
Hour
TypeID TypeID DayID
21
2
175
21
2
175
21
2
175
21
2
175
21
2
175
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
185
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
195
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
205
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
215
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
225
21
2
235
21
2
235

avgSpeed
BinID
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2

avgSpeed
Fraction
0.000288
0.094046
0.274366
0.241766
0.389518
1.69E-05
0
0
0
0
0
0
0
0
0
0
0.000288
0.094046
0.274366
0.241766
0.389518
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0

Source Road
Hour
TypeID TypeID DayID
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
235
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
245
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
12
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
22
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
32
21
2
42
21
2
42
21
2
42
21
2
42
21
2
42
21
2
42
21
2
42
21
2
42
21
2
42

2011 Ozone Precursor Emission Inventory

avgSpeed
BinID
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9

C–18

avgSpeed
Fraction
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977

Source Road
Hour
TypeID TypeID DayID
21
2
42
21
2
42
21
2
42
21
2
42
21
2
42
21
2
42
21
2
42
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
52
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
62
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
72
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
82
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92
21
2
92

avgSpeed
BinID
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

avgSpeed
Fraction
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812

February 2014

Source Road
Hour
TypeID TypeID DayID
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
102
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
112
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
122
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
132
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
142
21
2
152
21
2
152
21
2
152
21
2
152
21
2
152

avgSpeed
BinID
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5

avgSpeed
Fraction
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0

Source Road
Hour
TypeID TypeID DayID
21
2
152
21
2
152
21
2
152
21
2
152
21
2
152
21
2
152
21
2
152
21
2
152
21
2
152
21
2
152
21
2
152
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
162
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
172
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
182
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
192
21
2
202
21
2
202
21
2
202
21
2
202
21
2
202
21
2
202
21
2
202
21
2
202
21
2
202
21
2
202

2011 Ozone Precursor Emission Inventory

avgSpeed
BinID
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10

C–19

avgSpeed
Fraction
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234

Source Road
Hour
TypeID TypeID DayID
21
2
202
21
2
202
21
2
202
21
2
202
21
2
202
21
2
202
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
212
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
222
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
232
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242
21
2
242

avgSpeed
BinID
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

avgSpeed
Fraction
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812
2.51E-05
0
0
0
0
0
0.019619
0.097646
0.131977
0.203234
0.087838
0.07357
0.039194
0.083438
0.102646
0.160812

February 2014

[AVFT] (SourceTypeID 42: Transit Bus)
Source
TypeID
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42

Model
Fuel
Eng
YearID TypeID TechID
1960
2
1
1961
2
1
1962
2
1
1963
2
1
1964
2
1
1965
2
1
1966
2
1
1967
2
1
1968
2
1
1969
2
1
1970
2
1
1971
2
1
1972
2
1
1973
2
1
1974
2
1
1975
2
1
1976
2
1
1977
2
1
1978
2
1
1979
2
1
1980
2
1
1981
2
1
1982
2
1
1983
2
1
1984
2
1
1985
2
1
1986
2
1
1987
2
1
1988
2
1
1989
2
1
1990
2
1
1990
3
1
1991
2
1
1991
3
1
1992
1
1
1992
2
1
1992
3
1
1993
1
1
1993
2
1
1993
3
1
1994
1
1
1994
2
1
1994
3
1
1995
1
1
1995
2
1
1995
3
1
1996
1
1
1996
2
1
1996
3
1
1997
1
1
1997
2
1
1997
3
1
1998
1
1
1998
2
1
1998
3
1
1999
1
1
1999
2
1
1999
3
1
2000
1
1
2000
2
1
2000
3
1
2001
1
1
2001
2
1
2001
3
1
2002
1
1
2002
2
1
2002
3
1
2003
1
1
2003
2
1
2003
3
1
2004
1
1
2004
2
1
2004
3
1
2005
1
1
2005
2
1

fuelEng
Fraction
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.993
0.007
0.982
0.018
0.01
0.944
0.046
0.01
0.914
0.076
0.01
0.905
0.085
0.01
0.837
0.153
0.01
0.892
0.098
0
1
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0.08
0.92
0
0.397059
0.602941
0
1

2011 Ozone Precursor Emission Inventory

Source
TypeID
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42

Model
Fuel
Eng
YearID TypeID TechID
2005
3
1
2006
1
1
2006
2
1
2006
3
1
2007
1
1
2007
2
1
2007
3
1
2008
1
1
2008
2
1
2008
3
1
2009
1
1
2009
2
1
2009
3
1
2010
1
1
2010
2
1
2010
3
1
2011
1
1
2011
2
1
2011
3
1
2012
1
1
2012
2
1
2012
3
1
2013
1
1
2013
2
1
2013
3
1
2014
1
1
2014
2
1
2014
3
1
2015
1
1
2015
2
1
2015
3
1
2016
1
1
2016
2
1
2016
3
1
2017
1
1
2017
2
1
2017
3
1
2018
1
1
2018
2
1
2018
3
1
2019
1
1
2019
2
1
2019
3
1
2020
1
1
2020
2
1
2020
3
1
2021
1
1
2021
2
1
2021
3
1
2022
1
1
2022
2
1
2022
3
1
2023
1
1
2023
2
1
2023
3
1
2024
1
1
2024
2
1
2024
3
1
2025
1
1
2025
2
1
2025
3
1
2026
1
1
2026
2
1
2026
3
1
2027
1
1
2027
2
1
2027
3
1
2028
1
1
2028
2
1
2028
3
1
2029
1
1
2029
2
1
2029
3
1
2030
1
1
2030
2
1

C–20

fuelEng
Fraction
0
0.089744
0.128205
0.782051
0.149533
0.850467
0
0
0.479592
0.520408
0.121212
0.030303
0.848485
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1

Source
TypeID
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42
42

Model
Fuel
Eng
YearID TypeID TechID
2030
3
1
2031
1
1
2031
2
1
2031
3
1
2032
1
1
2032
2
1
2032
3
1
2033
1
1
2033
2
1
2033
3
1
2034
1
1
2034
2
1
2034
3
1
2035
1
1
2035
2
1
2035
3
1
2036
1
1
2036
2
1
2036
3
1
2037
1
1
2037
2
1
2037
3
1
2038
1
1
2038
2
1
2038
3
1
2039
1
1
2039
2
1
2039
3
1
2040
1
1
2040
2
1
2040
3
1
2041
1
1
2041
2
1
2041
3
1
2042
1
1
2042
2
1
2042
3
1
2043
1
1
2043
2
1
2043
3
1
2044
1
1
2044
2
1
2044
3
1
2045
1
1
2045
2
1
2045
3
1
2046
1
1
2046
2
1
2046
3
1
2047
1
1
2047
2
1
2047
3
1
2048
1
1
2048
2
1
2048
3
1
2049
1
1
2049
2
1
2049
3
1
2050
1
1
2050
2
1
2050
3
1

fuelEng
Fraction
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0

February 2014

[CountyYear]
countyID
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013
4013

yearID
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050

refuelingVaporProgramAdjust
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46

refuelingSpillProgramAdjust
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46
0.46

2011 Ozone Precursor Emission Inventory

C–21

February 2014

Appendix D. Public Comment Period Documentation

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Public Workshop

Air Quality Department, Bob Huhn, PIO
The Maricopa County Air Quality Department is holding a public workshop to discuss the draft 2011
Periodic Emissions Inventory for Ozone Precursors, published in January 2014.
The inventory includes emissions estimates for volatile organic compounds (VOC), nitrogen oxides
(NOx) and carbon monoxide (CO). Emissions are calculated for both Maricopa County and the eighthour ozone nonattainment area. Annual totals as well as season-day emissions are provided for all
source categories.
The emissions inventory report will undergo a 30-day public review period. The document is available
in electronic format (PDF files) on the department’s website (see link below).
The department is accepting written comments on the draft emissions inventory report through the
close of business on Friday, February 21, 2014.
The public workshop is an informal meeting for all interested parties, is free of charge, and requires no
advance registration or RSVP.
*All visitors to the MCAQD offices at 1001 N. Central Ave, Phoenix, AZ are kindly requested to check in
at the reception area in Suite 125.
Date: 2/14/2014
Time: 2:00 PM
Registration Required: No
Fee: None
More
Info: http://www.maricopa.gov/aq/divisions/planning_analysis/emissions_inventory/reports/Default.aspx
Contact: Bob Downing
Emissions Inventory Unit Manager
602-506-6790
bdowning@mail.maricopa.gov
Location: Maricopa County Air Quality Department
Address:
1001 N. Central Ave. Suite 125
Phoenix, AZ 85004

Maricopa County Air Quality Department 1001 North Central Avenue, Suite 125, Phoenix AZ 85004 (602) 506-6010

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