2010 Air Monitoring Network Review Prepared by the Air Monitoring Division 2145 S. 11th Ave Phoenix, AZ 85007 Acknowledgements In 2010, the Maricopa County Air Quality Department’s Air Monitoring Division maintained 25 ambient air monitoring sites throughout Maricopa County. New events happening during the year included the roll-out of our Mobile Air Monitoring Program. The department took possession of its mobile monitoring vehicle and equipment in February 2009 and started to ramp-up the program by conducting training, fine-tuning the equipment, and finally by conducting several monitoring special projects. The Air Monitoring Division now operates with a full staff with some technicians pulling double duty in both ambient monitoring and mobile monitoring. The department would especially like to thank all of its air monitoring staff for the excellent job they do in maintaining Maricopa County’s air monitoring network. They are Ben Davis, Larry Seals, Del Hawkins, Gary Ensminger, Robert Dyer, Ronald Pope, John Neff, Tom Shorb, Dale Foster, Chris Hernandez, Hugh Tom, Charles Miller, Alex Herrera, Dan Speigelberg, Tom Dubishar, Michael Gardner and Reynaldo Santillano. In addition, the assistance of other agencies which provided data and helpful comments to this review is gratefully acknowledged. These include Arizona Department of Environmental Quality (ADEQ), Pinal County Air Quality Control District (PCAQCD) and the Maricopa Association of Governments (MAG). 2009 Maricopa County Air Quality Department Air Monitoring Division staff 2010 Air Monitoring Network Review 1 Maricopa County Air Quality Department Table of Contents ACKNOWLEDGEMENTS ................................................................................................................................................... 1 ABSTRACT ............................................................................................................................................................................ 5 DEFINITION OF TERMS .................................................................................................................................................... 6 CRITERIA POLLUTANT INFORMATION...................................................................................................................... 8 ABSTRACT OF POLLUTANTS .................................................................................................................................................. 8 CAUSES AND CHARACTERISTICS OF POLLUTANTS................................................................................................................. 8 Carbon Monoxide: ............................................................................................................................................................ 8 Lead: ................................................................................................................................................................................. 8 Nitrogen Dioxide: ............................................................................................................................................................. 9 Ozone: .............................................................................................................................................................................. 9 Particulate Matter: ............................................................................................................................................................ 9 Sulfur Dioxide: ............................................................................................................................................................... 10 NATIONAL AMBIENT AIR QUALITY STANDARDS ................................................................................................................ 10 ABSTRACT OF MARICOPA COUNTY AIR QUALITY DEPARTMENT POLLUTION MONITORING STRATEGIES ............ 12 NETWORK DESIGN .......................................................................................................................................................... 13 PURPOSE AND OBJECTIVE OF THE NETWORK ...................................................................................................................... 13 OVERVIEW OF THE MARICOPA COUNTY AIR QUALITY DEPARTMENT’S AIR MONITORING NETWORK ............................... 14 2010 SUMMARY OF NETWORK RESULTS AND REQUIRED INFORMATION ................................................... 18 DATA COMPLETENESS ........................................................................................................................................................ 18 CRITERIA POLLUTANT SUMMARY ....................................................................................................................................... 19 Carbon Monoxide (CO).................................................................................................................................................. 19 Lead (Pb) ........................................................................................................................................................................ 21 Nitrogen Dioxide (NO2) ................................................................................................................................................. 22 Ozone (O3)...................................................................................................................................................................... 24 Particulate Matter <=10 Microns (PM10)........................................................................................................................ 27 Particulate Matter <=2.5 Microns (PM2.5) ...................................................................................................................... 29 Sulfur Dioxide (SO2) ...................................................................................................................................................... 31 2010 NAAQS EXCEEDANCE AND VIOLATION SUMMARY ................................................................................................... 32 2010 OZONE EXCEEDANCE AND VIOLATION DETAILS ........................................................................................................ 32 2010 VIOLATIONS OF THE 24-HOUR PM10 STANDARD ........................................................................................................ 34 EXCEPTIONAL EVENTS ........................................................................................................................................................ 34 2010 EXCEEDANCES OF THE 24-HOUR PM2.5 STANDARD .................................................................................................... 35 POLLUTION TRENDS ............................................................................................................................................................ 36 Carbon Monoxide ........................................................................................................................................................... 36 Nitrogen Dioxide ............................................................................................................................................................ 36 Ozone ............................................................................................................................................................................. 36 Particulates ..................................................................................................................................................................... 37 Sulfur Dioxide ................................................................................................................................................................ 39 SPECIAL PROJECTS AND NETWORK CHANGES .................................................................................................... 40 SEASONAL MONITORS......................................................................................................................................................... 40 THE CONSIDERATION OF ADDITIONAL SITES/MONITORS .................................................................................................... 40 NEW SITES .......................................................................................................................................................................... 40 CLOSED SITES/MONITORS ................................................................................................................................................... 41 LEAD MONITORING ............................................................................................................................................................. 41 OTHER NETWORK CHANGES/SPECIAL PROJECTS/COMMENTS............................................................................................. 41 ƒ SALT RIVER CHARACTERIZATION STUDY .................................................................................................................. 41 ƒ AIR QUALITY FORECASTING ...................................................................................................................................... 42 ƒ AIR MONITORING WEBSITE ....................................................................................................................................... 42 MOBILE MONITORING PROGRAM ........................................................................................................................................ 43 ADDITIONAL COMMENTS ............................................................................................................................................. 44 2010 Air Monitoring Network Review 2 Maricopa County Air Quality Department ARIZONA DEPARTMENT OF ENVIRONMENTAL QUALITY NETWORK .................................................................................... 44 EPA OZONE MAPPING ........................................................................................................................................................ 44 MARICOPA COUNTY’S INTERACTIVE POLLUTION MAP ....................................................................................................... 45 REFERENCES ..................................................................................................................................................................... 47 APPENDIX I - MONITORING SITE DETAILS (PHOTOS AND SPECIFIC INFORMATION) .................... ERROR! BOOKMARK NOT DEFINED. BUCKEYE (BE) (04-013-4011) ...................................................................................... ERROR! BOOKMARK NOT DEFINED. CAVE CREEK (CC) (04-013-4008) ................................................................................ ERROR! BOOKMARK NOT DEFINED. CENTRAL PHOENIX (CP) (04-013-3002) ....................................................................... ERROR! BOOKMARK NOT DEFINED. DEER VALLEY (DV) (04-013-4018) .............................................................................. ERROR! BOOKMARK NOT DEFINED. DURANGO COMPLEX (DC) (04-013-9812) .................................................................... ERROR! BOOKMARK NOT DEFINED. DYSART (DY) (04-013-4010) ....................................................................................... ERROR! BOOKMARK NOT DEFINED. FALCON FIELD (FF) (04-013-1010)............................................................................... ERROR! BOOKMARK NOT DEFINED. FOUNTAIN HILLS (FH) (04-013-9704) .......................................................................... ERROR! BOOKMARK NOT DEFINED. GLENDALE (GL) (04-013-2001).................................................................................... ERROR! BOOKMARK NOT DEFINED. GREENWOOD (GR) (04-013-3010) ................................................................................ ERROR! BOOKMARK NOT DEFINED. HIGLEY (HI) (04-013-4006) .......................................................................................... ERROR! BOOKMARK NOT DEFINED. HUMBOLDT MOUNTAIN (HM) (04-013-9508)............................................................... ERROR! BOOKMARK NOT DEFINED. MESA (ME) (04-013-1003) ........................................................................................... ERROR! BOOKMARK NOT DEFINED. NORTH PHOENIX (NP) (04-013-1004)........................................................................... ERROR! BOOKMARK NOT DEFINED. PINNACLE PEAK (PP) (04-013-2005) ............................................................................ ERROR! BOOKMARK NOT DEFINED. RIO VERDE (RV) (04-013-9706) ................................................................................... ERROR! BOOKMARK NOT DEFINED. SOUTH PHOENIX (SP) (04-013-4003) ............................................................................ ERROR! BOOKMARK NOT DEFINED. SOUTH SCOTTSDALE (SS) (04-013-3003) ..................................................................... ERROR! BOOKMARK NOT DEFINED. TEMPE (TE) (04-013-4005)........................................................................................... ERROR! BOOKMARK NOT DEFINED. WEST 43RD AVENUE (WF) (04-013-4009) ..................................................................... ERROR! BOOKMARK NOT DEFINED. WEST INDIAN SCHOOL ROAD (WI) (04-013-0016) ....................................................... ERROR! BOOKMARK NOT DEFINED. WEST PHOENIX (WP) (04-013-0019) ............................................................................ ERROR! BOOKMARK NOT DEFINED. ZUNI HILLS (ZH) (04-013-4016)................................................................................... ERROR! BOOKMARK NOT DEFINED. APPENDIX II - EPA REQUIRED DATA ...........................................................ERROR! BOOKMARK NOT DEFINED. REQUIRED GENERAL INFORMATION ON MONITORING NETWORK ................................. ERROR! BOOKMARK NOT DEFINED. REQUIRED GENERAL STATEMENT REGARDING CHANGES TO THE PM2.5 NETWORK...... ERROR! BOOKMARK NOT DEFINED. NOTES REGARDING APPENDIX DATA ............................................................................. ERROR! BOOKMARK NOT DEFINED. APPENDIX III - PUBLIC NOTICE AND COMMENT INFORMATION ......ERROR! BOOKMARK NOT DEFINED. PUBLIC NOTICE PERIOD ................................................................................................ ERROR! BOOKMARK NOT DEFINED. NEWS RELEASE ............................................................................................................. ERROR! BOOKMARK NOT DEFINED. PUBLIC COMMENTS ....................................................................................................... ERROR! BOOKMARK NOT DEFINED. List of Tables Table 1 National Ambient Air Quality Standards .................................................................................................................. 10 Table 2 Site Monitoring Objectives ...................................................................................................................................... 13 Table 3 Spatial Measurement Scales ...................................................................................................................................... 13 Table 4 Maricopa County Ambient Air Monitoring Sites for 2010 ...................................................................................... 15 Table 5 Criteria Pollutants Monitored, by Site and Network ................................................................................................. 15 Table 6 Site Location ............................................................................................................................................................. 16 Table 7 Site Instrument Setup ................................................................................................................................................ 17 Table 8 2010 Criteria Pollutant Data Completeness............................................................................................................... 18 Table 9 2010 AQS Data Completeness .................................................................................................................................. 18 Table 10 2010 1-hour and 8-hour Average Carbon Monoxide Summary .............................................................................. 20 Table 11 2010 Sulfur Dioxide Summary ................................................................................................................................ 21 Table 12 2010 Nitrogen Dioxide Summary ........................................................................................................................... 22 Table 13 2010 8-hour Average Ozone Summary ................................................................................................................... 25 Table 14 3 Year Average of 8-Hour Ozone .......................................................................................................................... 26 Table 15 2010 PM10 Summary ............................................................................................................................................... 28 2010 Air Monitoring Network Review 3 Maricopa County Air Quality Department Table 16 2010 PM2.5 Summary (FRM Filter-based Monitors) ............................................................................................... 30 Table 17 2010 PM2.5 Data Summary (FEM Continuous Monitors) ....................................................................................... 30 Table 18 2010 PM2.5 3-Year Averages of 98th Percentile (FRM Monitors) ........................................................................... 30 Table 19 2010 PM2.5 3-Year Averages of Annual Means (FRM Monitors) ........................................................................... 30 Table 20 2010 Sulfur Dioxide Summary ................................................................................................................................ 31 Table 21 2010 NAAQS Exceedances and Violations Summary ............................................................................................ 32 Table 22 2010 Ozone 8-hour Average Exceedance Details ................................................................................................... 32 Table 23 2010 Ozone Violations ............................................................................................................................................ 33 Table 24 2010 PM10 24-hour Average Exceedance Details ................................................................................................... 33 Table 25 Violations of the 24-hr PM10 Standard .................................................................................................................... 34 Table 26 2010 PM2.5 Exceedances....................................................................................................................................... 35 Table 27 Seasonal Monitors .................................................................................................................................................. 40 Table 28 List of Temporary Monitoring Sites in the Salt River Characterization Study ....................................................... 42 Table 29 Air Quality Index .................................................................................................................................................... 45 List of Figures Figure 1 Maricopa County Air Monitoring Sites for 2010 ..................................................................................................... 14 Figure 2 2010 Carbon Monoxide Monitoring Sites................................................................................................................ 19 Figure 3 2010 Lead Monitoring Sites ..................................................................................................................................... 21 Figure 4 2010 Nitrogen Dioxide Monitoring Sites ................................................................................................................. 22 Figure 5 2010 Ozone Monitoring Sites .................................................................................................................................. 24 Figure 6 2010 PM10 Monitoring Sites (includes continuous and non-continuous sites)......................................................... 27 Figure 7 2010 PM2.5 Monitoring Sites (continuous and non-continuous) .............................................................................. 29 Figure 8 2010 Sulfur Dioxide Monitoring Sites ..................................................................................................................... 31 Figure 9 Map of temporary monitoring sites in the Salt River Characterization study. ......................................................... 42 Figure 10 EPA AIRNow Website .......................................................................................................................................... 44 Figure 11 Interactive Website Data Trends Page ................................................................................................................... 46 List of Charts Chart 1 2008-2010 8-hr Avg. Carbon Monoxide Maximum Values ...................................................................................... 36 Chart 2 2008-2010 Nitrogen Dioxide Annual Average Readings .......................................................................................... 36 Chart 3 2008-2010 Ozone 4th High 8-hr Average ................................................................................................................. 37 Chart 4 2008-2010 PM10 24-hr Average Maximum Values ................................................................................................... 37 Chart 5 2008-2010 PM10 Annual Average ............................................................................................................................. 38 Chart 6 2008-2010 PM2.5 Annual Average............................................................................................................................. 38 Chart 7 2008-2010 PM2.5 98th Percentile ................................................................................................................................ 39 Chart 8 2008-2010 Sulfur Dioxide Annual Average .............................................................................................................. 39 2010 Air Monitoring Network Review 4 Maricopa County Air Quality Department ABSTRACT This 2010 Annual Air Monitoring Network Review is respectfully submitted by the Maricopa County Air Quality Department1 (MCAQD) to the United States Environmental Protection Agency (US EPA) Region 9. The Air Monitoring Network Review evaluates the adequacy of the ambient air monitoring network with respect to the monitoring objectives and spatial scales. This annual assessment is required by 40 CFR Part 58, Subpart B. Network changes, special projects, and 3-year data summaries are included in the review. This network review is also preliminary to our annual data certification with the US EPA and helps us assess the quality of our data before submitting for data certification. This network review has the secondary purpose of informing the public of the criteria air pollutants that can affect their health, how MCAQD monitors these criteria pollutants, and what the actual readings are so that our citizens can make informed decisions regarding their lifestyles. 1 The functions of the former Air Quality Division of the Maricopa County Environmental Services Department (MCESD) were transferred to the newly-created Air Quality Department in November 2004. 2010 Air Monitoring Network Review 5 Maricopa County Air Quality Department DEFINITION OF TERMS ADEQ: AQI: AQS: Attainment: AWT: CFR: Class I: CO: Continuous monitoring: Criteria Pollutants: Delta T: Design Value: EPA: Exceptional Events: FDMSTEOM: FEM: Filter-based Monitor FRM: HAPs MAG: MCAQD: Arizona Department of Environmental Quality. Air Quality Index. An index that is applicable to all pollutants which show the concentration of pollutant relative to its respective standard. When the AQI reaches 100 the concentration has exceeded the NAAQS. Environmental Protection Agency’s Air Quality System This refers to the NAAQS used to comply with the federal Clean Air Act. After several years of no violations of the NAAQS, the EPA can classify the area as in attainment for that pollutant. Average Weekday Traffic count. Code of Federal Regulations. Federally designated park or wilderness area with mandated visibility protection. Carbon monoxide. A method of monitoring air pollutants that is continually measuring the quantity of the pollutant, either gaseous or particulate. Continuous monitors can be used to obtain real-time or short-term averages of pollutants. Six pollutants (CO, Lead, NO2, O3, Particulates, and SO2) that have NAAQS established by the US EPA. Difference between two levels of temperature measurements. Delta T is measured in the MCAQD network at heights of 2 and 10 meters. A higher temperature at the upper level indicates a temperature inversion. A design value is a statistic that describes the air quality status of a given area relative to the level of the NAAQS. For a concentration-based standard, the air quality design value is simply the standard-related test statistic. The design value of a pollutant monitoring network is the highest sample value in the network used to compare to the NAAQS; e.g. the 24-hour PM2.5 design value for the network is the monitor with the highest 3-year average of the 98th percentile. U. S. Environmental Protection Agency. An uncontrollable event caused by natural sources of pollution or an event that is not expected to recur at a given location. The ADEQ makes the determination of which events to classify as exceptional; they then petition the EPA for acceptance of the classification. If the EPA accepts the petition, the measured pollution event will not be used in determination of compliance with the NAAQS. Filter Dynamics Measurement System-Tapered Element Oscillating Microbalance. A continuous particulate measuring instrument used by MCAQD to measure PM2.5. Federal Equivalency Method. An official method, i.e. equipment and procedure, of monitoring air pollution that has been determined to produce results similar to the Federal Reference Method (FRM). A method of monitoring particulate pollution that involves exposing a pre-weighed filter to a specific flow volume of air to capture the particulates in the air. The filters are then post-weighed to determine the weight of particulates per volume, e.g. µg/m3. Filter-based monitors used by MCAQD are all FRM monitors. Federal Reference Method. An official method, i.e. equipment and procedure, of monitoring air pollution that has been tested and determined to produce results that accurately measure air pollution with acceptable precision. These methods are the baseline that all other methods, e.g. Federal Equivalency Methods (FEM), refer to. Hazardous air pollutants. An air-born chemical that has been listed in the federal Clean Air Act and has an associated standard or process requirement determined for it. Maricopa Association of Governments Maricopa County Air Quality Department. 2010 Air Monitoring Network Review 6 Maricopa County Air Quality Department µg/m3: MSA: NAAQS: NCORE: NO2: NOX: O3: Pb: PM: PM2.5: PM10: PPB: PPM: Primary Standard: Secondary Standard: SIP: SLAMS: SO2: SPM: SSI: TEOM VOC: Microgram per cubic meter. Metropolitan Statistical Area. A geographical area designated by the federal government based on the concept of a core area with a large population nucleus, plus adjacent communities having a high degree of economic and social integration with that core. The MCAQD operates within the Phoenix-Mesa MSA which includes portions of Maricopa and Pinal County. National Ambient Air Quality Standards. A health and welfare-based standard that is set by the US EPA to qualify allowable levels of criteria pollutants. National Core Multi-Pollutant Site. A national network of multi-pollutant monitoring sites used to represent the nation as a whole. There are currently ~75 NCORE sites (1-3 per state plus Washington DC, Virgin Islands, and Puerto Rico) located in both urban and rural areas. Nitrogen dioxide. Nitrogen oxides. Sum of nitric oxide (NO), NO2, and other nitrogen-containing compounds. Ozone. Lead. Particulate matter. Material suspended in the air in the form of minute solid particles or liquid droplets. Particulate matter of 2.5 Microns in diameter or smaller Particulate matter of 10 Microns in diameter or smaller. Parts per billion. Parts per million. One portion of the NAAQS. These standards are designed to protect the public health. One portion of the NAAQS. These standards are designed to protect the public health. State Implementation Plan. SIPs are a collection of state and local regulations and plans to achieve healthy air quality under the Clean Air Act. State and Local Air Monitoring Station. The SLAMS consist of a network of approximately 5,000 monitoring stations nationwide whose size and distribution is largely determined by the needs of State and local air pollution control agencies to meet their respective State implementation plan (SIP) requirements. Other types of monitoring stations include NCORE (national core) and SPM (special purpose) monitors. Maricopa County does not currently operate any NCORE sites and only operates one SPM site. Sulfur dioxide. Special purpose monitor. Special Purpose Monitoring Stations provide for special studies needed by the State and local agencies to support State implementation plans and other air program activities. The SPMs are not permanently established and can be adjusted easily to accommodate changing needs and priorities. Size Selective Inlet. SSI High Volume Samplers are filter-based instruments used by MCAQD to measure PM10. Tapered Element Oscillating Microbalance. A continuous particulate measuring instrument used by MCAQD to measure PM10. Volatile organic compounds. VOCs are chemical compounds that can easily vaporize and enter the atmosphere. There are many natural and artificial sources of VOCs; solvents and gasoline make up some of the largest artificial sources. VOCs will react with NOx in the presence of sunlight to create ground-level ozone pollution. 2010 Air Monitoring Network Review 7 Maricopa County Air Quality Department CRITERIA POLLUTANT INFORMATION Abstract of Pollutants Certain air pollutants, called “criteria air pollutants,” are common throughout the United States. These pollutants can cause health problems, harm the environment, and cause property damage. These criteria pollutants are so named since the US EPA has regulations, called the National Ambient Air Quality Standards (NAAQS), on allowable levels of these substances using health-based criteria. One set of limits, called “primary standards,” protect health, while another set of “secondary standards”, are designed to protect property and the environment. The US EPA names the following pollutants as criteria pollutants: carbon monoxide (CO), lead (Pb), nitrogen dioxide (NO2), ozone (O3), particulates (PM10 & PM2.5), and sulfur dioxide (SO2). MCAQD operates monitors for the following criteria pollutants: carbon monoxide, ozone, particulates, nitrogen dioxide, and sulfur dioxide. In addition, the department began to monitor for lead in July 2010 to meet new federal requirements. Lead hasn’t been monitored in Maricopa County since 1997. Causes and Characteristics of Pollutants Carbon Monoxide: CO is the most widely distributed and most commonly occurring air pollutant. Total emissions of CO to the atmosphere exceed all other pollutants combined, on a weight basis. Fortunately, CO does not persist in the atmosphere, but is quickly converted to carbon dioxide (CO2). CO can reach dangerous levels in localized areas or hotspots such as heavily traveled intersections or city streets. In addition, CO has been implicated in ozone formation. Most people are familiar with CO and are aware that automobiles produce this deadly odorless and colorless gas. In Maricopa County, more than 70% of all anthropogenic CO comes from motor vehicle emissions. In fact, this gas is produced almost anytime something is burned. All substances that are living (plants, animals) or that were once living (wood, coal, oil, gasoline) are composed of carbon compounds. If these substances are burned in the presence of sufficient oxygen, the carbon is converted to CO2 gas. If, as is often the case, not enough oxygen is present, carbon monoxide gas is produced. Carbon monoxide’s danger lies in the extremely strong affinity that hemoglobin has for it. Hemoglobin, the special oxygen-transporting material in the red blood cell, has approximately 200 times stronger affinity for CO than for oxygen. Therefore, if both CO and O2 are present the bonding between the CO and hemoglobin will prevent the O2 from exchanging within a person’s body. This puts a heavy burden on people with heart disease and can aggravate angina, but even healthy people can suffer from harmful side effects from CO. In 2010 Maricopa County achieved its 14th consecutive year of compliance with the eight-hour CO standard. Lead: Lead is a metal found naturally in the environment as well as in manufactured products. The major sources of lead emissions have historically been motor vehicles (such as cars and trucks) and industrial sources. Due to the phase out of leaded gasoline, metals processing is the major source of lead emissions to the air today. The highest levels of lead in air are generally found near lead smelters. General aviation airports are also a significant source of lead, as general aviation fuel still contains lead additives. Other stationary sources are waste incinerators, utilities, and lead-acid battery manufacturers. In the early 1970s, EPA set national regulations to gradually reduce the lead content in gasoline. In 1975, unleaded gasoline was introduced for motor vehicles equipped with catalytic converters. EPA banned the use of leaded gasoline in highway vehicles in December 1995. Primarily as a result of EPA's regulatory efforts to remove lead from gasoline, levels of lead in the air have decreased by 94 percent between 1980 and 1999. Following the removal of lead from automotive fuel, levels of airborne lead in Maricopa County were drastically reduced. Because concentrations were consistently below national levels, Maricopa County was 2010 Air Monitoring Network Review 8 Maricopa County Air Quality Department allowed to discontinue ambient air monitoring for lead in 1997. However, recent changes in the lead monitoring regulations have brought the need to resume monitoring activities in Maricopa County. In July 2010, MCAQD opened a new lead monitoring site at Deer Valley airport. Deer Valley airport is the busiest general aviation airport in the county, and thus the largest expected source of lead emissions. Results from the first six months of monitoring have shown that ambient levels of lead are still well below the air quality standard, even with the much more stringent regulations. Nitrogen Dioxide: NO2 belongs to a family of highly reactive gases called nitrogen oxides. These gases are formed when fuel is burned at high temperatures, and are emitted primarily from automobile exhaust and power plants. Exposure to nitrogen dioxide can irritate the lungs and lower resistance to respiratory infections, particularly in people with existing respiratory illness such as asthma. Maricopa County is currently in attainment status for NO2. Ozone: O3 is a naturally occurring compound in which three oxygen atoms combine together. This is an unstable combination, and ozone is continually going through a natural cycle of being formed and then converting back to the more stable “normal” double oxygen compound (O2). The cycle occurs fairly rapidly. In the stratosphere (six miles and more above the earth), naturally occurring ozone has a beneficial effect of screening out harmful ultraviolet light from the sun. However, ground-level ozone is a pollutant and is a component of the regional smog that affects the valley. Ozone is not directly emitted into the air, but rather forms in a complex reaction that involves heat, sunlight, and a “soup” of toxic pollutants, especially volatile organic compounds (VOCs). Some of the most common sources of VOCs are gasoline vapors, chemical solvents, and combustion products of fuels and consumer products. Ozone is created by sunlight acting on nitrates (NOX) and VOCs from motor vehicles and stationary sources, and can be carried hundreds of miles from their origins. Ozone affects the respiratory system in people and animals, and also affects the growth of plants. Maricopa County is currently in non-attainment for Ozone pollution, although the number of violations of the standard had been decreasing in recent years. However, in February 2008, the EPA lowered the NAAQS for ozone from 0.08 ppm to 0.075 ppm. Many of the ozone monitoring sites were in borderline compliance with the older standard and now are exceeding the new standard. Strategies will have to be developed to lower ambient ozone levels into compliance with the new standard, improving air quality for all. Particulate Matter: Particulate matter is the term for solid or liquid particles found in the air. Particle pollution is made up of a number of components, including acids (such as nitrates and sulfates), organic chemicals, metals, and soil or dust particles. While some particles are large or dark enough to be seen as soot or smoke, others can only be seen through an electron microscope. In 1987 the EPA replaced the Total Suspended Particulates (TSP) air quality standard with a standard for PM10 (particles measuring ten microns or less). Health research studies have found that PM10 has the ability to reach the lower regions of the respiratory tract, and thus can affect the respiratory system in both humans and animals. Particulates with high acid levels can cause damage to manmade materials and reduce visibility. The size of particles is directly linked to their potential for causing health problems. EPA is concerned about particles that are 10 micrometers in diameter or smaller because those are the particles that generally pass through the throat and nose and enter the lungs. Once inhaled, these particles can affect the heart and lungs and cause serious health effects. EPA groups particle pollution into two categories: x "Coarse particles," such as those found near roadways and dusty industries, range in size from 2.5 to 10 microns in diameter. x "Fine particles," such as those found in smoke and haze, have diameters smaller than 2.5 microns. These particles can be directly emitted from sources such as forest fires, or they can form when gases emitted from power plants, industries and automobiles react in the air. 2010 Air Monitoring Network Review 9 Maricopa County Air Quality Department Maricopa County is currently in non-attainment for PM10 (although we are in attainment for PM2.5), nor have we met the requirements set forth in our State Implementation Plan (SIP). As a result of this, the EPA is implementing a 5% reduction of emissions plan, including the possibility of sanctions. This plan, which is required by the Clean Air Act, will continue until Maricopa County can bring the particulate matter pollution into compliance. Sulfur Dioxide: SO2 is emitted (in gaseous form) largely from burning high-sulfur coal, oil, and diesel fuel. Because this gas is usually found in association with particulate pollution, as SO2 is the precursor for fine sulfate particles, separating the health effects of these two pollutants is difficult. Together SO2 and PM2.5 make up a major portion of the pollutant load in many cities, acting separately and in concert to threaten public health. SO2 contributes to respiratory illness, particularly in children and the elderly, and aggravates existing heart and lung diseases. SO2 contributes to the formation of acid rain, and it contributes to the formation of atmospheric particles that cause visibility impairment, most noticeably in national parks. SO2 and the pollutants formed from SO2, such as sulfate particles, can be transported over long distances and deposited far from the point of origin. This means that problems with SO2 are not confined to areas where it is emitted. Maricopa County is in attainment for Sulfur Dioxide. National Ambient Air Quality Standards The EPA Office of Air Quality Planning and Standards (OAQPS) manages programs to improve air quality in areas where the current quality is unacceptable and to prevent deterioration in areas where the air is relatively free of contamination. To accomplish this task, OAQPS establishes the National Ambient Air Quality Standard (NAAQS) for each of the criteria pollutants (see Table 1). There are two types of standards. Primary standards protect against adverse health effects; secondary standards protect against welfare effects, such as damage to farm crops and vegetation and/or damage to buildings. Because different pollutants have different effects, the NAAQS are also different. Some pollutants have standards for both long-term and short-term averaging times. The short-term standards are designed to protect against acute, or short-term, health effects, while the long-term standards are established to protect against chronic health effects. Table 1 lists the NAAQS for the six criteria pollutants. Table 1 National Ambient Air Quality Standards Pollutant Carbon Monoxide Lead Nitrogen Dioxide PM10 PM2.5 Ozone Sulfur Oxides Primary Standards 9 ppm 35 ppm 0.15 µg/m3 1.5 µg/m3 0.053 ppm Averaging Times 8-houra 1-houra Rolling 3-Month Average Quarterly Average Annual (Arithmetic Mean) Secondary Standard None None Same as Primary Same as Primary Same as Primary 100 ppb 150 µg /m3 15 µg/m3 35 µg/m3 0.075 ppm 0.03 ppm 0.14 ppm 75 ppb 1-hourb 24-hourc Annuald (Arithmetic Mean) 24-houre 8-hourf Annual (Arithmetic Mean) 24-houra 1-hourg 3-houra Same as Primary Same as Primary Same as Primary Same as Primary ------------------0.5 ppm 2010 Air Monitoring Network Review 10 Maricopa County Air Quality Department a Not to be exceeded more than once per year. b To attain this standard, the 3-year average of the 98th percentile of the daily maximum 1-hour average at each monitor within an area must not exceed 100 ppb. c Not to be exceeded more than once per year on average over 3 years. d To attain this standard, the 3-year average of the annual arithmetic mean PM2.5 concentrations from single or multiple community-oriented monitors must not exceed 15 µg/m3. e To attain this standard, the 3-year average of the 98th percentile of 24-hour concentrations at each population-oriented monitor within an area must not exceed 35 µg/m3. f To attain this standard, the 3-year average of the fourth-highest daily maximum 8-hour average ozone concentrations measured at each monitor within an area over each year must not exceed 0.075 ppm. g To attain this standard, the 3-year average of the 99th percentile of the daily maximum 1-hour average at each monitor within an area must not exceed 75 ppb. 2010 Air Monitoring Network Review 11 Maricopa County Air Quality Department Abstract of MARICOPA COUNTY AIR QUALITY DEPARTMENT Pollution Monitoring Strategies MCAQD monitors for these criteria pollutants by maintaining twenty-five ambient air-monitoring sites throughout Maricopa County. The dates that the sites were established range from 1961 (Central Phoenix) to 2009 (Zuni Hills). Land use patterns around these sites vary from heavy populated urban areas to sparsely populated rural settings. Site elevations range from 845 feet above sea level (Buckeye) to 5190 feet above sea level at the top of Humboldt Mountain. Not all pollutants are measured at all sites; some sites measure most of the pollutants, while others only measure one or two pollutants. The following section will detail how the department designs its air monitoring network to obtain representative samples of these air pollutants. Following this will be details of the results obtained from our 2010 sampling season. 2010 Air Monitoring Network Review 12 Maricopa County Air Quality Department NETWORK DESIGN Purpose and Objective of the Network The purpose of the ambient air monitoring network is to assess the extent of air pollution, ensure compliance with national legislation, evaluate control options, and provide data for air quality modeling. In general, six basic monitoring objectives and five measuring scales are used to determine the network design (see Table 2 and Table 3). Additional considerations such as availability of power, accessibility to site, security, geographic location, and fiscal and personnel resources are also addressed in determining the feasibility of the network design. Table 2 Site Monitoring Objectives 1. 2. 3. 4. 5. Determine highest concentrations expected to occur in the area covered by the network. Determine representative concentrations in areas of high population density. Determine the impact on ambient pollution levels of significant sources or source categories. Determine general background concentration levels. Determine the extent of regional pollutant transport from populated areas, with regards to the secondary standards (such as visibility impairment and effects on vegetation). 6. Determine the welfare-related impacts in more rural and remote areas. To establish or evaluate a site, one must link its monitoring objectives to the physical location of the site. This can be done by matching the spatial scale, which represents the sample of air around the monitor where pollutant concentrations are reasonably uniform, with the most appropriate monitoring objective. Thus, spatial scale represents the physical dimensions of the air parcel around the monitor, and monitoring objective represents the overall purpose of the monitor. Combining the proper spatial scale with the monitoring objective explains why air monitoring sites are located in particular areas. Table 3 Spatial Measurement Scales Scale Defined parameter (radius) Micro Scale Middle Scale Neighborhood Scale Urban Scale Regional Scale 0 to 100 meters 100 to 500 meters 0.5 to 4 kilometers 4 to 50 kilometers 10 to 100s of kilometers Since it is physically and fiscally impossible to monitor air quality in every location, representative samples must be obtained. The optimal locations for obtaining these samples are determined by using the monitoring objectives and the spatial measurement scales described above. For example, there might be numerous locations where the highest concentration of carbon monoxide may occur. Using these principles, only one or two sites will be established to represent all of the high-concentration areas. The same reasoning can be used for different types of pollutants. This does not mean that the number of monitoring sites is fixed. To the contrary, the network must be dynamic enough to maintain a current representative sample of the air quality. 2010 Air Monitoring Network Review 13 Maricopa County Air Quality Department Overview of the Maricopa County Air Quality Department’s Air Monitoring Network The Phoenix Metropolitan Area has a population of over 3.9 million people (2008 US Census estimate). The EPA has mandated a minimum number of monitors required to properly represent this population. MCAQD has designed its network, using the concepts of scale and objective mentioned previously, to meet and in most cases exceed these EPA requirements (see “Required General Information on Monitoring Network” in Appendix II). Altogether, the department operated a network of 25 monitoring sites in 2010. The following image details the location of these sites and gives the abbreviation symbols used by Maricopa County. Table 4 and Table 5, which follows, gives the AQS code assigned to each site and details which criteria pollutant is monitored at which site along with the monitor designation, respectively. Table 6 and Table 7 give more specific information about the location of the sites and the types and numbers of monitors at each site, respectively. Figure 1 Maricopa County Air Monitoring Sites for 2010 2010 Air Monitoring Network Review 14 Maricopa County Air Quality Department Table 4 Maricopa County Ambient Air Monitoring Sites for 2010 Site Name Blue Point Buckeye Cave Creek Central Phoenix Deer Valley Durango Complex Dysart Falcon Field Fountain Hills Glendale Greenwood Higley Humboldt Mountain Site Abbr. BP BE CC CP DV DC DY FF FH GL GR HI HM AQS Code 04-013-9702 04-013-4011 04-013-4008 04-013-3002 04-013-4018 04-013-9812 04-013-4010 04-013-1010 04-013-9704 04-013-2001 04-013-3010 04-013-4006 04-013-9508 Site Name Mesa North Phoenix Pinnacle Peak Rio Verde South Phoenix South Scottsdale Tempe West Chandler West 43rd Ave. W. Indian School Rd. West Phoenix Mesa Zuni Hills Site Abbr. ME NP PP RV SP SS TE WC WF WI WP ME ZH AQS Code 04-013-1003 04-013-1004 04-013-2005 04-013-9706 04-013-4003 04-013-3003 04-013-4005 04-013-4004 04-013-4009 04-013-0016 04-013-0019 04-013-1003 04-013-4016 Table 5 Criteria Pollutants Monitored, by Site and Network Site Blue Point Buckeye Cave Creek Central Phoenix Deer Valley Durango Complex Dysart Falcon Field Fountain Hills Glendale Greenwood Higley Humboldt Mountain Mesa North Phoenix Pinnacle Peak Rio Verde South Phoenix South Scottsdale Tempe West Chandler West 43rd Ave. W. Indian School Rd. West Phoenix Zuni Hills CO Pb SLAMS SLAMS O3 SLAMS SLAMS SLAMS SLAMS PM2.5 PM10 NO2 SLAMS SLAMS SLAMS SLAMS SO2 SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS SPM SLAMS SLAMS=State and Local Monitoring Station; SPM=Special Purpose Monitoring Station 2010 Air Monitoring Network Review 15 Maricopa County Air Quality Department Table 6 Site Location Site Latitude Longitude Site Location BP BE CC CP DV DC DY FF FH GL GR HI HM ME NP PP RV SP SS TE WC WF WI WP ZH 33.54549 -111.60925 33.37005 -112.62070 33.82169 -112.01739 33.45793 -112.04601 33.684627 -112.08635 33.42650 -112.11814 33.63713 -112.34184 33.45223 -111.73331 33.61103 -111.72529 33.56936 -112.19153 33.46093 -112.11748 33.31074 -111.72255 33.98280 -111.79870 33.41045 -111.86507 33.56033 -112.06626 33.71231 -111.85272 33.71881 -111.67183 33.40316 -112.07533 33.47968 -111.91721 33.4124 -111.93473 33.29898 -111.88431 33.40642 -112.14434 33.49462 -112.13098 33.48385 -112.14257 33.686738 -112.294171 Usery Pass & Bush Highway MC85 & HWY 85 32nd St. & Carefree Highway 19th St & Roosevelt 10th Ave. & Deer Valley Rd. 27th Ave. & Durango St. Bell Rd. & Dysart Rd. McKellips & Greenfield Palisades & Fountain Hills Blvd. 59th Ave & W. Olive 27th Ave. & Interstate 10 Higley Rd. & Chandler Blvd Top of Humboldt Mountain Broadway Rd. & Alma School Rd. 7th Street & Dunlap Avenue Pima Rd & Pinnacle Peak Forest Rd & Del Ray Ave. Central Ave. & Broadway Scottsdale Rd. & Thomas Rd. College Ave. & Apache Blvd. Ellis St. & Frye Rd. 43rd Ave. & Broadway Rd. 33rd Ave. & Indian School Rd. 39th Ave. & Earll Dr. 109th Ave & Deer Valley Rd. 2010 Air Monitoring Network Review 16 AQS Code 04-013-9702 04-013-4001 04-013-4008 04-013-3002 04-013-4018 04-013-9812 04-013-4010 04-013-1010 04-013-9704 04-013-2001 04-013-3010 04-013-4006 04-013-9508 04-013-1003 04-013-1004 04-013-2005 04-013-9706 04-013-4003 04-013-3003 04-013-4005 04-013-4004 04-013-4009 04-013-0016 04-013-0019 04-013-4016 Maricopa County Air Quality Department 22 17 13 5 2 15 5 21 12 24 2 3 12 4 4 2 163 2010 Air Monitoring Network Review Chart Current as of 12/31/10 17 Maricopa County Air Quality Department Total # of Sites: 25 * = Instruments operate seasonally. Seasonal ozone monitoring was discontinued in October 2010; all ozone monitors will run 12 months from this time forward. Sites BE BP CC CP DV DC DY FF FH GL GR HI HM ME NP PP RV SP SS TE WC WF WI WP ZH Active Instr. #Active Delta PM-2.5 PM-10 PM-2.5 PM-10 Lead Room RH Filter Filter Cont. Wind O3 CO NOX SO2 Press Temp Temp Temp Rain Cont. Filter Instruments 9 1 1 * 1* 1 1 1 1 1 1 1 1 1 1 4 1 1 * 1 1 1 1 6 1 1 1 1 1 1 1 1 1 9 2 2 1 1 1 1 1 1 1 7 1 1 * 1* 1 1 1 1 1 8 1 1 * 1 1 1 5 1 1 1 1 1 1 6 1 1 * 1* 1 1 1 1 1 8 1 1 1 1 1 1 1 7 1 1 1 1 1 1 6 1 * 1 1 1 4 1 1* 1 1 1 1 1 1 8 1 1 1* 1 1 1 1 1 8 1 1 1 3 1 * 1 2 1 1 1* 1 1 1 1 1 1 1 10 1 1 1* 1 1 1 1 1 1 2 11 1 1 1* 1 1 1 1 7 1 1 * 1* 1 1 1 1 1 8 1 1 1 1 1 1 6 1 1 1 3 1 1 1 1 1 1 1 1 1 1 2 12 1 1 1 1 4 AIR MONITORING NETWORK OPERATIONS Table 7 Site Instrument Setup 2010 SUMMARY OF NETWORK RESULTS AND REQUIRED INFORMATION Data Completeness Before any data set can be considered valid it must first pass a data recovery test that consists of determining the ratio of actual samples to scheduled samples by quarter. This ratio must be greater than 75% for a data set to pass the first validity test. After all validation tests have been passed, the data can be used to determine compliance with the NAAQS. The following is a summary of the annual data completeness for all criteria pollutants (Table 8). Note that CO, O3, NO2, and SO2 samples are all from continuous monitors and are therefore hourly-averaged samples. PM monitors are either continuous, and therefore hourly-averaged, or filter-based and daily-averaged. Filters are sampled for 24 hours every 3rd day (PM2.5) or every 6th day (PM10). Table 8 2010 Criteria Pollutant Data Completeness Carbon Monoxide Number of Actual Samples Number of Scheduled Samples 74960 76416 98.1% 42 46 91.3% 41639 43800 95.1% 114881 116304 98.8% 390 396 98.5% 16256 17640 92.2% 180 183 98.4% 103365 105120 98.3% 17101 17520 97.6% 368814 377425 Lead Nitrogen Dioxide Ozone PM2.5 (1 in 3 day) PM2.5 (continuous) PM10 (1 in 6 day) PM10 (continuous) Sulfur Dioxide Total Data Completeness (Actual/Schedule) 97.7% Table 9 displays the official data completeness score as reported from the EPA’s AQS database. This score only includes criteria pollutants that are entered into AQS and is reflective of appropriate sampling schedules. Maricopa County Air Quality considers this score the ‘official’ data completeness number. Table 9 2010 AQS Data Completeness AQS Data Completeness for Maricopa County Air Quality 97.5% 2010 Air Monitoring Network Review 18 Maricopa County Air Quality Department Criteria Pollutant Summary Carbon Monoxide (CO) Figure 2 2010 Carbon Monoxide Monitoring Sites During 2010, thirteen CO monitors were reported as operational to the US EPA Air Quality System (AQS) (Figure 2). All CO monitors are classified as SLAMS (Table 5). In June 2010, MCAQD was required to close the West Indian school site as the City of Phoenix Fire Department closed the building housing the site. Due to the close proximity of the West Phoenix CO monitor, it was decided to close West Indian School and allow West Phoenix to assume representation of the area. Proper documentation was submitted to the EPA, which agreed with the decision to close the site. There are two primary standards for CO, the 8-hour average and the 1-hour average. The 8-hour primary standard is 9 ppm and the 1-hour primary standard is 35 ppm. A violation of the standard is any two exceedances in a calendar year. For calendar year 2010, no exceedances of the CO 1-hour or 8-hour standards were recorded at any MCAQD monitoring sites (see Table 10). 2010 Air Monitoring Network Review 19 Maricopa County Air Quality Department Table 10 2010 1-hour and 8-hour Average Carbon Monoxide Summary CO 8-hour Number Average Max. of (PPM); Date: Hour Samples 5043 0.6; 01/07:22 CO 8-hour Average 2nd High (PPM); Date: Hour 0.6; 11/17:21 Number of Exceedances of 1/8-Hour average 0 2.4; 12/04:01 2.2; 12/25:02 0 5018 0.9; 02/24:22 0.6; 02/25:04 0 8.9; 09/06:10 5014 3.0; 09/06:13 1.5; 09/06:10 0 4.3; 12/25:03 3.9; 12/25:02 8623 3.0; 12/25:04 2.3; 01/01:05 0 Mesa 2.0; 11/27:22 2.0; 11/27:23 4600 1.4; 11/28:02 1.4; 12/05:01 0 N. Phoenix 2.9; 12/28:08 2.4; 12/03:18 5020 1.7; 12/03:23 1.6; 12/10:00 0 S. Phoenix South Scottsdale Tempe West Chandler W. Indian School W. Phoenix 4.4; 01/01:00 4.3; 01/01:01 5039 3.1; 01/01:05 3.1; 12/25:04 0 2.1; 12/02:19 2.0; 12/14:19 5008 1.6; 12/03:00 1.6; 12/04:01 0 3.4; 09/04:19 2.4; 12/03:22 4942 1.9; 12/04:01 1.6; 11/28:02 0 2.0; 12/03:20 2.0; 12/03:21 5038 1.9; 12/04:02 1.6; 12/03:01 0 3.7; 01/08:08 3.3; 01/08:07 4300 2.3; 01/08:00 2.3; 01/10:01 0 4.3; 01/12:07 4.2; 01/12:08 8638 3.3; 12/03:01 3.2; 12/04:02 0 CO 1-hour Average Max. (PPM); Date: Hour 1.9; 11/17:19 CO 1-hour Average 2nd High (PPM); Date: Hour 1.3; 11/13:07 C. Phoenix 3.2; 12/01:07 3.2; 12/24:23 8677 Dysart 2.0; 02/24:20 1.8; 02/24:22 Glendale 9.0; 09/06:11 Greenwood Site Buckeye Note: this table is read as the bold number representing the data followed by the date and time, e.g. 0.7; 01/10:18 is read as: 0.7 PPM on January 10 in the 6 o’clock PM (18:00) hour. 2010 Air Monitoring Network Review 20 Maricopa County Air Quality Department Lead (Pb) Figure 3 2010 Lead Monitoring Sites Following the introduction of unleaded gasoline in the early 1990’s, ambient air concentrations of lead fell to such a low level that Maricopa County was given permission to discontinue monitoring for this pollutant. However, the lead NAAQS was drastically lowered by a new regulation in 2008, and this caused concern to begin monitoring for this pollutant again to ensure that the new standard is being met. In July of 2010 a new lead monitoring site was opened near the Deer Valley airport in north Phoenix. Deer Valley Airport, as one of the busiest general aviation airports in the region, is assumed to be the largest point source of lead within Maricopa County. The new lead NAAQS have two primary standards, a rolling three-month average and a quarterly average. The three month average is violated by an exceedance of 0.15 Pg/m3 and the quarterly average is violated by an exceedance of 1.5Pg/m3. Table 11 2010 Sulfur Dioxide Summary Site 24-hour Max. (Pg/m3); Date: Hour 24-hour 2nd High (Pg/m3); Date: Hour Max. Quarterly Average (Pg/m3) Number of Samples Deer Valley 0.066; 12/04:00 0.051; 09/17:21 .0274; 4th Qtr 29 Note: this table is read as the bold number representing the data followed by the date and time, e.g. 0.024; 06/30:05 is read as: 0.024 PPM on June 30 in the 5 o’clock AM (05:00) hour. 2010 Air Monitoring Network Review 21 Maricopa County Air Quality Department Nitrogen Dioxide (NO2) Figure 4 2010 Nitrogen Dioxide Monitoring Sites All parts of Maricopa County are in attainment for nitrogen dioxide. During 2010, five NO2 monitors were operational and were reported in AQS (Figure 4). All NO2 monitors are designated as SLAMS (see Table 5). Compliance with the NO2 standard is achieved when the annual arithmetic mean concentration in a calendar year is less than or equal to 53 ppb. A new hourly standard for NO2 began in 2010; this regulation states that the 3year average of the 98th percentile cannot exceed 100 ppb. For calendar year 2010, no exceedances of the NO2 annual or 1-hour standard were recorded at Maricopa County monitoring sites (Error! Reference source not found.). Table 12 2010 Nitrogen Dioxide Summary Site NO2 Avg. 1-hour Max. (PPB); Date: Hour NO2. 1-hour 98th Percentile (PPB) 3-Year Avg. of 98th Percentile (PPB) # of 1-hour Samples Annual Average (PPB) Buckeye 45.0; 01/26:06 35.0 38.3 8339 7.6 Central Phoenix 69.0; 09/30:19 59.0 64.0 8435 18.8 Greenwood 79.0; 01/04:07 68.0 70.3 8340 24.5 South Scottsdale 66.0; 09/30:19 53.0 54.0 8154 13.9 West Phoenix 67.0; 01/12:08 55.0 56.7 8371 17.7 2010 Air Monitoring Network Review 22 Maricopa County Air Quality Department Note: this table is read as the bold number representing the data followed by the date and time, e.g. 0.041; 11/10:17 is read as: 0.041 PPM on November 10 in the 5 o’clock PM (17:00) hour. 2010 Air Monitoring Network Review 23 Maricopa County Air Quality Department Ozone (O3) Figure 5 2010 Ozone Monitoring Sites During 2010, seventeen ozone monitors were reported as operational in AQS (Figure 5). All of the ozone monitors are classified as SLAMS (Table 5). The 1-hour average ozone standard was revoked by the EPA on June 15, 2005, and has been replaced by the 8-hour average standard for compliance purposes. On March 12, 2008, the EPA lowered the eight-hour ozone NAAQS from 0.080 to 0.075 ppm. Compliance with the standard is determined by averaging the 4th highest eight-hour average over a three-year period. This three-year average must be less than or equal to 0.075 ppm. There were 31 exceedances of the eight hour primary standard for ozone in 2010. Table 13 presents the 2010 data summary for eight-hour ozone at department monitoring sites. Also in 2010, there was one violation of the eight-hour primary standard (the 8-hour average NAAQS for ozone is violated when the three-year average of the fourth high is greater than 0.075 ppm (Table 14). 2010 Air Monitoring Network Review 24 Maricopa County Air Quality Department Table 13 2010 8-hour Average Ozone Summary Site Blue Point 8-hour max. (PPM); Date: Hour .076; 05/27:12 2nd High (PPM); Date: Hour .072; 06/22:12 3rd High (PPM); Date: Hour .068; 05/26:11 4th High (PPM); Date: Hour .068; 09/30:11 Number of Days t 0.075 1 Buckeye .066; 06/29:09 .066; 07/24:11 .065; 06/23:10 .064; 06/24:09 0 Cave Creek .078; 06/22:12 .074; 06/23:12 .074; 09/29:11 .074; 09/30:11 1 Central Phoenix .078; 06/29:11 .077; 06/23:10 .075; 08/22:12 .072; 06/22:11 2 Dysart .082; 06/29:09 .075; 05/16:11 .073; 09/03:11 .071; 06/22:11 1 Falcon Field .074; 06/23:11 .073; 06/24:11 .072; 06/22:11 .070; 09/30:11 0 Fountain Hills .081; 06/22:11 .078; 05/27:11 .078; 06/23:11 .074; 09/29:12 3 Glendale .083; 06/29:12 .077; 06/23:10 .077; 09/03:12 .074; 06/22:11 3 Humboldt Mt. .074; 06/22:14 .071; 06/23:03 .070; 04/14:21 .070; 04/15:00 0 North Phoenix .085; 06/23:10 .084; 06/29:12 .081; 06/24:10 .079; 06/22:11 6 Pinnacle Peak .080; 06/22:12 .079; 09/29:10 .079; 09/30:12 .077; 06/23:12 4 Rio Verde .078; 06/22:12 .073; 06/23:12 .072; 05/26:12 .071; 06/15:11 1 South Phoenix .076; 06/23:10 .075; 06/24:11 .075; 06/29:11 .074; 08/23:10 1 South Scottsdale .084; 06/23:10 .078; 06/22:11 .078; 06/29:11 .076; 06/24:10 4 Tempe .075; 06/23:10 .072; 06/22:11 .068; 05/15:11 .068; 06/29:11 0 West Chandler .083; 06/23:10 .076; 05/15:11 .075; 06/24:10 .074; 05/27:11 2 West Phoenix .082; 06/29:11 .078; 06/23:11 .075; 06/22:11 .075; 06/28:11 2 Note: this table is read as the bold number representing the data followed by the date and time, e.g. 0.073; 4/30:12 is read as: 0.073 PPM on April 30 in the 12 o’clock PM (12:00) hour. 2010 Air Monitoring Network Review 25 Maricopa County Air Quality Department Table 14 3 Year Average of 8-Hour Ozone Site 2008 4 th High (PPM) 2009 4 th High (PPM) 2010 4 th High (PPM) 3 Yr. Avg. of 4th High (PPM)* Blue Point 0.074 0.069 .068 0.070 Buckeye 0.068 0.062 .064 0.065 Cave Creek 0.078 0.070 .074 0.074 Central Phoenix 0.072 0.069 .072 0.071 Dysart 0.066 0.069 .071 0.069 Falcon Field 0.075 0.065 .070 0.070 Fountain Hills 0.079 0.069 .074 0.074 Glendale 0.074 0.068 .074 0.072 Humboldt Mt. 0.077 0.067 .070 0.071 North Phoenix 0.080 0.072 .079 0.077# Pinnacle Peak 0.073 0.070 .077 0.073 Rio Verde 0.079 0.068 .071 0.073 South Phoenix 0.076 0.067 .074 0.072 South Scottsdale 0.076 0.072 .076 0.075 Tempe 0.078 0.067 .068 0.071 West Chandler 0.077 0.070 .074 0.074 West Phoenix 0.078 0.068 .075 0.074 *Note that this average value has been truncated (not rounded) to the third significant digit. #Indicates violation of the NAAQS. 2010 Air Monitoring Network Review 26 Maricopa County Air Quality Department Particulate Matter <=10 Microns (PM10) Figure 6 2010 PM10 Monitoring Sites (includes continuous and non-continuous sites) During 2010, fifteen PM10 monitors were reported as operational in AQS (Figure 6). All PM10 monitors are classified as SLAMS; except for Zuni Hills which is classified as a Special Purpose (SP) monitor (Table 5). Note that twelve of these PM10 sites operate continuous monitors which collect hourly-averaged data; the other three are non-continuous filter-based monitors which collect 24-hour averaged data on a 1-in-6 day schedule. The 24-hour Primary standard for PM10 is 150 µg/m3 (155 µg/m3 with mathematical rounding). This standard is violated when the expected number of exceedance for the calendar year is more than one. A formula, as detailed in 40 CFR 50, is used to determine the expected number of exceedances. The formula takes into account the number of days sampling occurred and the number of valid samples collected. A 3-year average of these estimated days is then used to determine compliance. On December 18, 2006 new monitoring rules from the EPA revoked the PM10 annual primary standard, although the annual average is still displayed below for informational purposes (Table 15). For calendar year 2010, there was only one site that exceeded the PM10 24-hour standard, which is down from ten exceedances in 2009, and there were six sites that violated the PM10 24-hour standard (described in Table 24 and Table 25). 2010 Air Monitoring Network Review 27 Maricopa County Air Quality Department Table 15 2010 PM10 Summary Site Name Buckeye (continuous) Central Phoenix (continuous) Durango Complex (continuous) Dysart (continuous) Glendale (continuous) Greenwood (continuous) Higley (continuous) Mesa North Phoenix South Phoenix (continuous) South Scottsdale West Chandler (continuous) 24-hr 24-hr Number of Average Average Annual 24-hour Max 2nd High NAAQS Expected Average #Exceptional (Pg/m3) (Pg/m3) Exceedances Exceedances (Pg/m3) Events Number of Samples 113 107 0 0 34.1 0 8692 106 63 0 0 27.4 0 8693 111 106 0 0 36.2 0 8412 81 92 63 62 0 0 0 0 21.5 22.9 0 0 8697 8648 158* 135 1 1.045 34.9 0 8630 83 86 44 80 39 39 0 0 0 0 0 0 30.1 17.4 19.3 0 0 0 8607 58 61 120 112 0 0 35.0 0 8678 37 29 0 0 17.4 0 61 76 71 0 0 23.3 0 8593 112 107 0 0 39.4 0 8412 86 86 0 0 29.8 0 8675 70 51 0 0 20.7 0 8628 rd West 43 Ave (continuous) West Phoenix (continuous) Zuni Hills (continuous) *Indicates an exceedance of the standard. Note that some data have the potential for being classified as exceptional events (see Definition of Terms for explanation of exceptional events). In accordance with the EPA’s exceptional events policy, once approved these data are not used in determining compliance with the NAAQS. Values in Table 15 are from official AQS reports as of the date of publishing this review; exceptional events that have not yet been approved by the EPA will not affect these values until they are approved. The process of approving exceptional events can take over a year after the exceedance day, so some values in Table 15 could change upon EPA approval of an exceptional event petition. At the time of publishing this review, no exceedances have been petitioned for exceptional event status. Note that the ADEQ takes the lead in the determination and petitioning of exceptional events. On July 2, 2002 (67 FR 44369), EPA found the state implementation plan (SIP) for the Metropolitan Phoenix (Maricopa County), Arizona serious PM10 non-attainment area to be inadequate to attain the 24-hour particulate (PM10) air quality standard at the Salt River monitoring site. Under authority from the Clean Air Act, EPA has required a SIP revision to be submitted by the State of Arizona to correct the inadequacy. In 2004 the Arizona Department of Environmental Quality submitted a SIP addressing the inadequacies in the Salt River Area to the EPA. As of December 31, 2010, Maricopa County has not come into compliance with the NAAQS for PM10. As a result of this, the EPA is requiring a 5% plan which began in 2008. This required Maricopa County to submit an approved plan to reduce the annual PM10 emissions of Maricopa County by 5% until the standard is met. Failure to comply with this plan or to meet the NAAQS for PM10 will result in further 5% reductions annually, and could result in sanctions from the EPA. 2010 Air Monitoring Network Review 28 Maricopa County Air Quality Department Particulate Matter <=2.5 Microns (PM2.5) Figure 7 2010 PM2.5 Monitoring Sites (continuous and non-continuous) Currently MCAQD operates collocated filter-based compliance PM2.5 monitors at the West Phoenix site and single filter-based monitors at the Mesa and South Phoenix site (Figure 7). These compliance PM2.5 monitors all use sample filters and are non-continuous in nature. On July 1, 2007, the department took over weighing the sample filters, a process that was previously done by the ADEQ. All filters are processed and weighed in our internal laboratory. In addition to the filter-based monitors, the department operates three continuous PM2.5 monitors at the Durango, South Phoenix, and West Phoenix sites. These continuous monitors have recently been reclassified as Federal Equivalency Methods (FEM), so their data are applicable to comparison with the national standards. All monitors are identified as SLAMS (Table 5). Note that the PM2.5 network is much smaller than the PM10 network. The reason for this is that historically more concern and resources have been given to PM10, since Maricopa County is not in attainment for this pollutant (Maricopa County is currently in attainment for PM2.5). According to federal regulations, Maricopa County does operate slightly more than the required minimum number of PM2.5 monitors for the MSA (see Appendix II). The Air Monitoring Division continually assesses if the existing network adequately represents the air quality (PM2.5) in Maricopa County. One result from these ongoing assessments has been the addition of the continuous PM2.5 monitors. There are also plans expand the PM2.5 network in 2011 by adding a new monitoring site in the North Phoenix area. On December 18, 2006, the EPA implemented new primary standards for PM2.5. These new rules changed the 24hour average standard from 65 Pg/m3 to 35 Pg/m3. The annual average standard of 15 Pg/m3 remains unchanged. Compliance with the 24-hour standard is determined by taking the 3-year average of the 98th percentile at each monitoring site. Compliance with the Annual standard is determined by taking the 3-year average of the spatially averaged annual means. In 2010, there were seven exceedances of the 24-hour standard at FRM or FEM 2010 Air Monitoring Network Review 29 Maricopa County Air Quality Department monitors at three different sites, though two of the exceedances from the filter-based monitors coincide with continuous monitors that were operating at the same site. There were no violations of the 24-hour standard or the annual standard. Data is summarized in Table 16 and Table 17. Averages used for determining compliance with the NAAQS are shown in Table 18 and Table 19. Table 16 2010 PM2.5 Summary (FRM Filter-based Monitors) 24-hr Avg. 24-hr Avg. Max 2nd High (Pg/m3) (Pg/m3) 14.0 11.9 Site Name Mesa 98th Percentile Value 11.8 Annual Avg. Number of Samples (Pg/m3) 6.25 120 South Phoenix 63.4* 24.1 24.0 9.23 121 West Phoenix 53.3* 21.8 21.6 8.36 121 *Indicates an exceedance of the standard. Table 17 2010 PM2.5 Data Summary (FEM Continuous Monitors) Site Name Durango Complex (continuous) South Phoenix (continuous) West Phoenix (continuous) 98th Percentile Annual Avg. Number of Value (Pg/m3) Samples 1-hr Avg. Max (Pg/m3) 1-hr Avg. 2nd High (Pg/m3) 64.1* 27.2 24.3 10.16# 5770 82.6* 50.3* 24.4 7.98# 4914 55.3* 43.5* 22.0 7.60# 5572 *Indicates an exceedance of the standard. #The continuous FEM PM2.5 monitors were started up in July 2010 and do not constitute a 75% data completeness rate for 2010 annual averages. Table 18 2010 PM2.5 3-Year Averages of 98th Percentile (FRM Monitors) Site Name Mesa South Phoenix West Phoenix 2008 98th Percentile Value 14.5 10.9 10.6 2009 98th Percentile Value 17.2 34.5 29.4 2010 98th Percentile Value 11.8 24.0 21.6 98th Percentile 3-Year Average 14.5 23.1 20.5 Table 19 2010 PM2.5 3-Year Averages of Annual Means (FRM Monitors) Site Name Mesa South Phoenix West Phoenix 2008 Annual Mean 8.50 10.90 10.60 2010 Air Monitoring Network Review 2009 Annual Mean 7.30 11.00 10.36 30 2010 Annual Mean 6.25 9.23 8.36 3-Year Average of the Annual Mean 7.35 10.38 9.77 Maricopa County Air Quality Department Sulfur Dioxide (SO2) Figure 8 2010 Sulfur Dioxide Monitoring Sites Maricopa County is in attainment for SO2. During 2010, two SO2 monitors were operational and were reported in AQS (Figure 8). Both of these monitors were designated SLAMS (see Table 5). Sulfur Dioxide has an Annual and 24-hour average primary standard, plus a new 1-hour standard. There is also a 3-hour average secondary standard. A violation of the primary standard occurs when the annual mean exceeds 30 ppb, a 24-hour average of 140 ppb is exceeded more than once per calendar year, or the 3-year average of the 99th percentile of the daily maximum 1-hour average exceeds 75 ppb. A violation of the 3-hour average secondary standard occurs when a 3-hour average of 500 ppb is exceeded more than once per year. For calendar year 2008, no exceedances of the SO2 Annual, 24-hour, or 3-hour standard were recorded at Maricopa County monitoring sites (see Table 20). Table 20 2010 Sulfur Dioxide Summary Site 1-hour 1-hour 3-hour 3-hour 24-hour 24-hour Max. 2nd High Max. 2nd High Max. 2nd High Annual Number (PPB); (PPB); (PPB); (PPB); (PPB); (PPB); Avg. of Date: Hour Date: Hour Date: Hour Date: Hour Date: Hour Date: Hour (PPB) Samples Central 12; 10; 10; 10; 5; 5; 2 8475 Phoenix 12/01:07 01/07:21 12/02:23 12/03:23 01/07:00 12/01:00 South 14; 11; 9; 6; 3; 3; 1 8626 Scottsdale 09/03:10 11/14:10 09/03:11 07/11:08 12/02:00 12/06:00 Note: this table is read as the bold number representing the data followed by the date and time, e.g. 10; 06/30:05 is read as: 10 PPB on June 30 in the 5 o’clock AM (05:00) hour. 2010 Air Monitoring Network Review 31 Maricopa County Air Quality Department 2010 NAAQS Exceedance and Violation Summary The following is a summary of the number, types and dates of exceedances and violations of the NAAQS for 2010 (Table 21). Table 21 2010 NAAQS Exceedances and Violations Summary Carbon Monoxide No exceedances or violations of the 1-hr or 8-hr NAAQS standard were logged. Nitrogen Dioxide No exceedances or violations of NAAQS were logged. There were 10 unique days when at least one monitor exceeded the standard. There were 31 individual exceedances of the 8-hour standard which occurred at 13 different sites. There was one violation of the 8-hour standard. Ozone PM10 PM2.5 Sulfur Dioxide There was one unique day when at least one monitor exceeded the standard and one individual exceedance of the 24-hour standard. There were two unique days when at least 1 FRM or FEM monitor exceeded the standard. There were five individual exceedances of the 24-hour standard which took place at three different sites. There were no violations of the 24-hour or annual standards. No exceedances or violations of NAAQS were logged. 2010 Ozone Exceedance and Violation Details Table 22 details the dates and values for exceedances of the 8-hour ozone standard. The standard is 0.075 ppm for an eight hour average. Table 23 details violations of the 8-hour ozone standard. Violations are calculated with a three-year average of the fourth-highest annual 8-hour value, if this three-year average is greater than 0.075 ppm than the site violates the standard. Table 22 2010 Ozone 8-hour Average Exceedance Details Site Blue Point Cave Creek Central Phoenix Dysart Fountain Hills Glendale North Phoenix Pinnacle Peak 2010 Air Monitoring Network Review Date 5/27/10 6/22/10 6/23/10 6/29/10 6/29/10 5/27/10 6/22/10 6/23/10 6/23/10 6/29/10 9/3/10 5/15/10 6/22/10 6/23/10 6/24/10 6/28/10 6/29/10 6/22/10 6/23/10 9/29/10 9/30/10 Value (ppm) 0.076 0.078 0.077 0.078 0.082 0.078 0.081 0.078 0.077 0.083 0.077 0.076 0.079 0.085 0.081 0.078 0.084 0.080 0.077 0.079 0.079 32 Maricopa County Air Quality Department Rio Verde South Phoenix South Scottsdale 6/22/10 6/23/10 6/22/10 6/23/10 6/24/10 6/29/10 5/15/10 6/23/10 6/23/10 6/29/10 West Chandler West Phoenix 0.078 0.076 0.078 0.080 0.076 0.078 0.076 0.083 0.078 0.082 Table 23 2010 Ozone Violations Site North Phoenix Value (ppm) 0.077 2010 Exceedances of the 24-Hour PM10 Standard Table 24 details the site and date of exceedances of the 24-hour PM10 standard. Note that this table includes all exceedances, even those that will be or are in the process of being classified as exceptional events (at the time of publishing this report no exceedances have been petitioned to be classified as exceptional, though this could change in the future). Exceptional events are not used in calculating compliance with the NAAQS. Table 24 2010 PM10 24-hour Average Exceedance Details Site Greenwood 2010 Air Monitoring Network Review Value (µg/m3) 159.3 Date 10/15/10 33 Maricopa County Air Quality Department 2010 Violations of the 24-Hour PM10 Standard The 24hr NAAQS for particulates is violated when the rate of expected occurrence of exceedances (samples greater than or equal to 155 µg/m3) is greater than one over three consecutive years (Table 25) (40 CFR Part 50.6 (a)). Table 25 Violations of the 24-hr PM10 Standard 2008 Site Buckeye 2009 2010 24-hr 24-hr 24-hr Rate of Max. Expected Max. Expected Max. Expected Expected (µg/m3) Exceedances (µg/m3) Exceedances (µg/m3) Exceedances Exceedances 4.022 3.022 113 0 223‡ 439‡ 2.3 Central Phoenix Durango Complex Dysart 133 0 153 0 106 0 247‡ 2 277‡ 3 111 0 75 0 227‡ 1 81 0 0.3 80 0 196 5.412 92 0 1.8 Greenwood 133 0 229‡ 1.011 158 1.045 0.7 Higley 132 0 275‡ 2.136 83 0 0.7 Mesa 71 0 87 0 86 0 0.0 North Phoenix 87 0 69 0 44 0 0.0 South Phoenix 230‡ 2 250‡ 3 120 0 1.7 South Scottsdale 91 0 135 0 37 0 0.0 West Chandler West 43rd Avenue West Phoenix 66 0 220‡ 6.412 76 0 2.1 278‡ 5.011 317‡ 7 112 0 113 0 210 1.022 86 0 0.3 Zuni Hills N/A N/A 0# 70 0 N/A# Glendale 27# 0 1.7 4.0  Indicates violation of the standard. # Indicates <75% data available. ‡ Indicates Exceptional Events occurred at this site. The listed value is the highest official AQS reading at time of publication. Exceptional Events Table 25 lists the official records in AQS (at time of publication) for exceedances and violations. However, as was previously noted on page 27, some of these 2008-2010 exceedance days could be petitioned to be classified as exceptional events and a request made to the EPA to remove them from official consideration as compliance data. EPA approval of these requests can take over a year. At the time of this publication there have not been any petitions for the classification of 2010 PM10 exceedances as exceptional. 2010 Air Monitoring Network Review 34 Maricopa County Air Quality Department 2010 Exceedances of the 24-Hour PM2.5 Standard The 24-hour NAAQS for PM2.5 is 35 µg/m3; if the 24-hour block average (midnight-to-midnight) surpasses this value than it is counted as an exceedance. The 24-hour standard is violated when the three year average of the 98th percentile exceeds 35 µg/m3. There were no violations in 2010. Table 26 2010 PM2.5 Exceedances Site Durango South Phoenix West Phoenix Date 12/25/10 12/24/10 12/25/10 12/25/10 12/24/10 12/25/10 12/25/10 2010 Air Monitoring Network Review Value (ppm) 64.1 50.3 82.6 63.4 50.3 43.5 53.3 35 Method Continuous FEM Continuous FEM Continuous FEM Filter-based FRM Continuous FEM Continuous FEM Filter-based FRM Maricopa County Air Quality Department Pollution Trends The following charts depict the most recent three-year trends (2008-2010) for each criteria pollutant. See Table 4 for explanations of site abbreviations. Carbon Monoxide 10 9 8 PPM 7 2008 6 2009 5 4 2010 3 2 Standard < 9.0 1 0 BE CP DY GL GR ME NP SP SS TE WC WI WP Chart 1 2008-2010 8-hr Avg. Carbon Monoxide Maximum Values Nitrogen Dioxide 60.0 50.0 2008 40.0 2009 PPB 2009 30.0 Standard 53 ppb 20.0 10.0 0.0 BE CP GR SS WP Chart 2 2008-2010 Nitrogen Dioxide Annual Average Readings Ozone 2010 Air Monitoring Network Review 36 Maricopa County Air Quality Department 0.090 0.080 PPM 0.070 0.060 2008 0.050 2009 0.040 2010 0.030 Standard <0.075 0.020 0.010 0.000 BP BE CC CP DY FF FH GL HM NP PP RV SP SS TE WC WP Chart 3 2008-2010 Ozone 4th High 8-hr Average Particulates 500 450 400 ug/m3 350 2008 300 2009 250 2010 200 Standard <155 150 100 50 0 BE CL CP DC DY GL GR HI ME NP SP SS WC WF WP ZH Chart 4 2008-2010 PM10 24-hr Average Maximum Values 2010 Air Monitoring Network Review 37 Maricopa County Air Quality Department 60.0 50.0 ug/m3 40.0 2008 2009 30.0 2010 20.0 10.0 0.0 BE CL CP DC DY GL GR HI ME NP SP SS WC WF WP ZH Chart 5 2008-2010 PM10 Annual Average 16 14 12 2008 ug/m3 10 2009 8 2010 6 Standard <15 4 2 0 DC ME SP WP Chart 6 2008-2010 PM2.5 Annual Average 2010 Air Monitoring Network Review 38 Maricopa County Air Quality Department 40 35 30 2008 ug/m3 25 2009 20 2010 15 Standard <35 ppm 10 5 0 DC ME SP WP Chart 7 2008-2010 PM2.5 98th Percentile Sulfur Dioxide 35 30 30 30 25 2008 PPB 20 2009 15 2010 10 5 Standard 30 PPB 1.7 1.6 1.7 1.3 1.2 1.3 0 CP SS Chart 8 2008-2010 Sulfur Dioxide Annual Average 2010 Air Monitoring Network Review 39 Maricopa County Air Quality Department Special Projects and Network Changes Air quality issues such as the SIP, natural events policy, and permits for new sources are diverse and controversial subjects for the citizens of Maricopa County. Since no policies can be made without high-quality monitoring data, MCAQD’s Air Monitoring Division strives to provide the most reliable and relevant air monitoring data to the public. The following is a list of projects and changes that have occurred during the year 2010. Seasonal Monitors The department continues to run some of its carbon monoxide (CO) monitors and ozone (O3) monitors on a seasonal basis (Table 27), though there have been changes in the seasonal operation of O3 monitors (see below). Having part of the network operating seasonally allows the county to upgrade instruments, perform preventive maintenance, extend the life expectancy of the instruments, reduce replacement costs, and better utilize its QA and QC resources on the remaining instruments. During the off-season the number of CO and O3 monitors operating still exceeds the minimum EPA requirements. Table 27 Seasonal Monitors Seasonal Carbon Monoxide Monitors ( Operational Sept. 1 – Apr. 1) Seasonal Ozone Monitors (Operational Apr. 1 – Nov. 1) Buckeye Dysart Glendale Mesa North Phoenix South Phoenix South Scottsdale Tempe West Chandler Buckeye Cave Creek Dysart Falcon Field Glendale Humboldt Mountain Rio Verde Tempe West Chandler MCAQD has decided to return all O3 monitors to full-year service; this change took place in November 2010 and all O3 monitors in the network operated during November and December 2011. The new lower NAAQS for O3, and the anticipation that the standard would be lowered even further in the near future, prompted the department to switch to full-year monitoring to ensure that any possible exceedances will be recorded. The Consideration of Additional Sites/Monitors The department continues to evaluate the PM10 network for possible additional sites for determining the impact on ambient pollution levels of significant sources or source categories. The significant sources would include industry and agriculture. The allocation of both financial and personnel resources continue to remain significant obstacles to the establishment of new monitoring sites. New Sites MCAQD opened a new SLAMS lead monitoring site in the north Phoenix area that was named Deer Valley (04013-4018). This site is detailed in the lead monitoring section below. 2010 Air Monitoring Network Review 40 Maricopa County Air Quality Department MCAQD also completed a 5-year assessment of the monitoring network in 2010. This assessment identified several different areas that would benefit from the addition of a new monitoring site. It also identified several existing monitors that would be more beneficial if they were moved to another existing site. Based off of the results of the Network Assessment, it has been decided to open a new monitoring site in the North Phoenix/Deer Valley area. This site will contain O3, PM10, and PM2.5 monitors. MCAQD is also planning on opening a new site in Avondale to close a gap of monitoring coverage in the west valley area. The temporary Avondale site from the Salt River Characterization study is being strongly considered as being made this permanent site. It is anticipated that this site will contain O3 and PM10 monitors. Closed Sites/Monitors In July 2010 the West Indian School Road site was permanently closed. This site, which monitored CO and wind parameters, was located within a City of Phoenix Fire Department training center. The City of Phoenix sold the building and MCAQD was required to move all equipment out before the end of June 2010. After discussion of whether to close the site permanently or move it to another location, it was decided that nearby CO sites (West Phoenix (04-013-0019), and the ADEQ’s JLG Supersite (04-013-9998)) adequately represented the area, so the site was closed. Proper documentation regarding closing the site was sent to the EPA, which agreed with our assessment and decision. The South Scottsdale SO2 monitor was also closed at the end of December 2010. This monitor was moved to the existing Durango Complex site and began operating in January 2011. The five-year network assessment identified the South Scottsdale SO2 monitor as being ineffective, so it was decided to move it to the Durango area which has a larger concentration of SO2 sources. Lead Monitoring In conjunction with the recent strengthening of the lead NAAQS, EPA is improving the existing national lead monitoring network by requiring monitors to be placed in areas with sources such as industrial facilities that emit one ton or more per year (tpy) of lead and in urban areas with more than 500,000 people. In 1997, the EPA allowed MCAQD to stop monitoring for airborne lead because the data showed values were far below the standard. With the new more stringent standard, the department will once again monitor for airborne lead. MCAQD located a new lead monitoring site at the Deer Valley airport in North Phoenix, which was chosen because federal emissions inventories have indicated that the Deer Valley Airport emits more than one tpy of lead. This is due to the lead contained in the general aviation fuel (Deer Valley is a general aviation airport). The site began operation in July 2010 and has two co-located filter-based lead monitors which operate on a 1-in6 day schedule. Other Network Changes/Special Projects/Comments ƒ Salt River Characterization Study MCAQD is participating in a joint PM10 assessment project with the Maricopa Association of Governments (MAG) and the Arizona Department of Environmental Quality (ADEQ). This project will seek to identify the source of PM10 emissions within the Salt River area of the southwest valley. MCAQD setup several monitoring sites beginning early in 2010. Table 28 gives information on these sites, while Figure 9 displays a map of these monitoring sites in the southwest valley. These temporary sites are expected to operate until mid-2011. 2010 Air Monitoring Network Review 41 Maricopa County Air Quality Department Table 28 List of Temporary Monitoring Sites in the Salt River Characterization Study Site# 1 2 Site Name 43rd & Broadway 51st Avenue Location 4740 S. 43rd Ave, Phoenix 51st Avenue & Roeser, Phoenix Date Installed 4/1/2010 5/12/2010 3 4 67th Avenue Avondale 5 Arlington 67th Avenue & Southern 5/7/2010 Avondale Blvd & Gila River, 5/4/2010 Avondale 9410 S. 355th Avenue, Arlington 2/17/2010 Installed Monitors PM10 PM10, Wind Speed and Direction PM10 PM10, Wind Speed and Direction PM10 Figure 9 Map of temporary monitoring sites in the Salt River Characterization study. ƒ Air Quality Forecasting ADEQ, in conjunction with the MCAQD, has developed a year-round air quality forecasting capability for the Phoenix metropolitan area. ADEQ takes the lead on air quality forecasting and issuing of High Pollution Advisories, while the MCAQD provides monitoring data and designates No-Burn Days. ƒ Air Monitoring Website The department is continuing its distribution of air monitoring data to the public by posting one-hour continuous data on the Internet (see “Maricopa County Interactive Pollution Map” section below). Additionally, the department participates in the EPA Ozone Mapping AIRNow website (see ADDITIONAL COMMENTS). The corresponding websites are as follows: 2010 Air Monitoring Network Review 42 Maricopa County Air Quality Department Maricopa County Air Quality Dept: http://aqwww.maricopa.gov/AirMonitoring/SitePollutionMap.aspx AIRNow: http://www.epa.gov/airnow Mobile Monitoring Program The department received approval in late 2006 from the Maricopa County Board of Supervisors to start a Mobile Monitoring program. This program enables the department to do more source-specific air monitoring (as opposed to the ambient monitoring that we have historically performed); the ability to track down sources of air pollutants; the ability to collect and analyze hazardous air-pollutant (HAP) samples; and the ability to perform stack testing of permitted sources. The program is useful for collecting and analyzing scientific data for various projects, including assisting our compliance division in the enforcement of air pollution control regulations. The equipment for this program includes a vehicle outfitted with air monitoring and analytical equipment. Monitoring and sampling equipment consists of various meteorological, criteria pollutant, and HAP monitors, as well as stack testing equipment. Analytical equipment includes a portable Gas-Chromatograph/Mass Spectrometer (GCMS) and geographical positioning systems. Air monitoring equipment has also been placed in a mobile trailer that can be quickly moved to areas to operate independently. We also have the ability to use geographical information systems to build geo-referenced models of sampled pollutants. In late 2008, the department hired an engineer to operate the vehicle and GCMS. The vehicle was delivered to MCAQD in February 2009. MCAQD has since developed quality control procedures for the Mobile Monitoring program and we spent much of 2010 assisting our compliance division with complaint investigations, performing educational outreach, and assisting in the development of the Salt River characterization study. 2010 Air Monitoring Network Review 43 Maricopa County Air Quality Department ADDITIONAL COMMENTS Arizona Department of Environmental Quality Network The ADEQ operates its own monitoring network within the State of Arizona, including some sites within Maricopa County. In addition to these state-run sites, ADEQ also utilizes several MCAQD sites to operate their own monitoring equipment. The ADEQ does a variety of ambient pollution, air toxics, visibility, and meteorological monitoring. One of the main sites in Maricopa County that is operated by ADEQ is the JLG Supersite in central Phoenix. The Supersite is a National Core multi-pollutant monitoring station (NCore) and is part of the national monitoring network (MCAQD’s monitors, on the other hand, are part of the State and Local Air Monitoring network (SLAMS)). For more information about the state’s network or the NCore JLG Supersite consult the ADEQ’s Annual Network Plan on their website at: http://www.azdeq.gov/function/forms/reports.html. EPA Ozone Mapping The AIRNow website (http://www.epa.gov/airnow) provides real-time air pollution (ozone and PM2.5) maps for major metropolitan areas around the United States, including the Phoenix Metropolitan Area. MCAQD has participated in the program since 2001. MCAQD, in cooperation with ADEQ and the Pinal County Air Pollution Control District, has expanded the area that the maps cover. This area now includes sites as far east as Queen Creek, as far south as Casa Grande, and as far west as Palo Verde. This website can be used as a tool for which the public can plan their daily activities and limit their exposure to air pollution. Eight-hour average peak ozone concentration maps and real-time eight-hour ozone animation maps are provided. Colors on the map indicate different concentrations of ozone pollution. The onehour average values are given in parts per billion. The eight-hour averages are converted into Air Quality Index (AQI) numbers. The AQI is based on the NAAQS. The index was developed to convert pollution measurements into a common index that the general public can more easily understand. Figure 10 EPA AIRNow Website Different colors on the map correspond to different categories of air quality and health impacts (Table 29). 2010 Air Monitoring Network Review 44 Maricopa County Air Quality Department Table 29 Air Quality Index 0 – 50 51 – 100 Color Air Quality Designation Green Good Yellow Moderate 101 – 150 Orange 151 – 200 Red Unhealthy for Sensitive Groups Unhealthy 201 – 300 301 – 500 Purple Maroon Very Unhealthy Hazardous Index Health Impact No harmful effects expected. Unusually sensitive people should consider limiting prolonged outdoor exertion. Active children & adults, people with respiratory disease (i.e., asthma) should limit prolonged outdoor exertion. Everyone should observe caution. Avoid prolonged outdoor exertion. Avoid all outdoor exertion. Use extreme caution outdoors Everyone should avoid all outdoor exertion. The animated map is updated every hour from 8am to 8pm seven days a week. Updates to the site will be made during the ozone season (April through October). Maricopa County’s Interactive Pollution Map In the spirit of our mission statement of “Protecting our most vital natural resource”, MCAQD brought real-time pollution data to the Internet in late 2006. All of the department’s continuous data are available to the public through an interactive map (Figure 11). The air pollutants that are available include CO, Ozone, NO2, SO2, and Particulates. Wind Speed and Direction information is also available. Seasonal monitors are noted on the website and the data display will inform the user which monitors are currently active. Data can be accessed at the web address: http://aqwww.maricopa.gov/AirMonitoring/SitePollutionMap.aspx. Data are displayed using actual readings, as well as AQI numbers. Relevant rolling averages are also displayed. In addition, a trend chart is provided so that the previous 24-hours can be detailed. On a separate page, a 30-day pollution history is displayed for each site. One of the major problems in providing “real-time” pollution data to a public medium is providing quality data. The data available on the Internet goes through an automated quality assurance check program before it is released; however, some invalid data can slip through. Normal quality assurance checks take between one and three months. Consequently, information provided at this site should be used for informational purposes only and should not be relied on for comparison with NAAQS. 2010 Air Monitoring Network Review 45 Maricopa County Air Quality Department Figure 11 Interactive Website Data Trends Page 2010 Air Monitoring Network Review 46 Maricopa County Air Quality Department REFERENCES 1. Code of Federal Regulations, Chapter 40, Part 50 and 58, 1997 2. EPA’s AirData (AQS) information: http://www.epa.gov/air/data/index.html 3. EPA’s NAAQS Info: http://www.epa.gov/air/criteria.html 4. SIP Information: http://www.adeq.state.az.us/environ/air/plan/index.html 5. EPA’s Air Program Information: http://www.epa.gov/rgytgrnj/programs/artd/air/quality/quality.htm 6. Maricopa County Air Quality Department Air Monitoring Map: http://aqwww.maricopa.gov/AirMonitoring/SitePollutionMap.aspx. 7. AIRNow: http://airnow.gov/ 8. Criteria Pollutant Information: http://www.epa.gov/air/urbanair/6poll.html 9. Maricopa County Air Quality Department Prior Network Reviews: http://www.maricopa.gov/aq/divisions/monitoring/network.aspx. 2010 Air Monitoring Network Review 47 Maricopa County Air Quality Department APPENDIX I - Monitoring Site Details (Photos and Specific Information) 2010 Air Monitoring Network Review 48 Maricopa County Air Quality Department Blue Point (BP) (04-013-9702) Location: Bush Highway and Usery Pass Rd., Maricopa County Spatial Scale: Urban Monitoring Objective: Maximum Ozone Concentration Site Description: The Blue Point site became operational in July 1995 and is located in a Maricopa County Sheriff’s Sub-Station in Tonto National Forest. This site represents the maximum ozone concentration, and urban-scale downwind transport conditions. This site is located approximately 40 miles east of the Phoenix metropolitan area. Ozone is the only criteria pollutant monitored at this SLAMS station. Wind speed and direction are also monitored at the site. Ozone 2008 0.076* 1 0.070 Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm O3 Three year average of 4th High 2009 0.073 0 0.067 2010 0.076* 1 0.070 *Indicates an exceedance of the standard. 2010 Air Monitoring Network Review 49 Maricopa County Air Quality Department Buckeye (BE) (04-013-4011) Location: US 85 & MC 85, Buckeye Spatial Scale: Neighborhood and Urban (NO2) Monitoring Objective: Population Exposure and Source Oriented (NO2) Site Description: The Buckeye site was established on August 1, 2004. This site is a SLAMS location for carbon monoxide, ozone, PM10, and NO2 criteria pollutants. The site is located in the Maricopa County Department of Transportation Southwest Facility. The immediate area is agriculture and encroaching residential development. The NO2 monitors at this site are classified with the Source Oriented objective; the sources are complexes of power plants that are located approximately 15 miles to the west. The PM10 monitor at this site was changed from a 1-in-6 day to hourly schedule as of October 1, 2004. Carbon Monoxide Ozone PM10 Nitrogen Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) O3 Three year avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Annual NO2 Avg. (PPB) NO2 1-hour Average 98th Percentile 2008 0.5 0 0.071 0 0.066 223*‡ 4‡ 43.2 9.21 45.0 2009 0.6 0 0.069 0 0.064 439*‡ 3‡ 38.9 8.52 35.0 2010 0.6 0 0.066 0 0.065 113 0 34.1 7.65 35.0 *Indicates an exceedance of the standard. #Indicates <75% data recovery. ‡Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2010 Air Monitoring Network Review 50 Maricopa County Air Quality Department Cave Creek (CC) (04-013-4008) Location: 32nd St. & Carefree Highway, Cave Creek Spatial Scale: Urban Monitoring Objective: Maximum Ozone Concentration Site Description: The Cave Creek site became operational in August 2001 and is located in the Maricopa County Cave Creek Recreation Area (Park Office). This site was chosen through discussions on modifying the ozone network for the 2005 8-hr ozone standard. Ozone is the only criteria pollutant monitored at this SLAMS station. Wind speed and direction are also monitored at the site. Ozone Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) O3 Three year average of 4th High 2008 0.080* 8 0.078# 2009 0.073 0 0.075 2010 0.078* 1 0.074 *Indicates an exceedance of the standard. #Indicates a violation of the standard. 2010 Air Monitoring Network Review 51 Maricopa County Air Quality Department Central Phoenix (CP) (04-013-3002) Location: 19th St. and Roosevelt Spatial Scale: Neighborhood Monitoring Objective: High Population Exposure and Highest Concentration (NO2 and SO2) Site Description: The Central Phoenix site has been in existence for over four decades and has provided a longterm historical database with a high rate of data recovery. The site is representative of high population exposure (greater than 5000 people per square mile) in the central Phoenix area. This site is a SLAMS location for carbon monoxide, ozone, PM10, SO2 and NO2 criteria pollutants. Carbon Monoxide Ozone PM10 Nitrogen Dioxide Sulfur Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) O3 Three year avg. of 4th High Max. 24-hr PM10 Avg. Continuous (µg/m3) Number exceedances Continuous 24-hr PM10 Annual PM10 Avg. Continuous (µg/m3) Annual NO2 Avg. (PPB) NO2 1-hour Average 98th Percentile (PPB) Max. 24-hr SO2 Avg. (PPB) Number of Exceedances SO2 Annual SO2 Avg. (PPB) 2008 2.6 0 0.078* 1 0.074 133 0 35.3 21.52 67.0 4 0 1.7 2009 2.2 0 0.074 0 0.070 153 0 34.5 20.90 66.0 5 0 1.6 2010 2.4 0 0.078* 2 0.071 106 0 27.4 18.82 59.0 5 0 1.7 *Indicates an exceedance of the standard. 2010 Air Monitoring Network Review 52 Maricopa County Air Quality Department Deer Valley (DV) (04-013-4018) Location: 7th Avenue & Deer Valley Rd. Spatial Scale: Middle Monitoring Objective: Source Oriented Site Description: The Deer Valley site is located on the grounds of the Deer Valley Airport in north Phoenix. This site was started because changes in the lead NAAQS necessitates that MCAQD begin lead monitoring again (lead monitoring was discontinued in 1997 because ambient concentrations were consistently much lower than the standard at that time). Deer Valley Airport is one of the busiest general aviation airports in Maricopa County; since general aviation fuel still contains lead additives, this is thought to be the largest single source of lead in the county. Lead 2008 N/A N/A N/A Max. 24-hr Pb Avg. (µg/m3) Pb #Daily Exceedances >0.15 µg/m3 Pb Maximum Quarterly Average 2009 N/A N/A N/A 2010 0.066 0 0.0274* *Incomplete data, only two quarters of data are available for calendar year 2010. 2010 Air Monitoring Network Review 53 Maricopa County Air Quality Department Durango Complex (DC) (04-013-9812) Location: 27th Ave and Durango St. Spatial Scale: Middle Monitoring Objective: Highest Concentration Site Description: This site is located in the Maricopa County Flood Control District storage yard one mile northwest from the former Salt River site, which was closed in 2002. Sampling began on January 6, 1999 with the intent to replace the Salt River site. However, in 2000 the EPA determined that the site is not equivalent to the Salt River site, which prompted the opening of the West 43rd Avenue site. Continuous particulate monitors (SLAMS PM10 and PM2.5) are located at this site. Note that the PM2.5 monitor is a continuous FDMS-TEOM monitor, which was not a FEM monitor before 2010, so data from before then was not used for NAAQS compliance purposes. There are also meteorological monitors (wind speed/direction and atmospheric pressure) located at the site. PM10 PM2.5 Max. 24-hr PM10 Avg. Continuous (µg/m3) Number exceedances Continuous 24-hr PM10 Annual PM10 Avg. Continuous (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) No. of daily exceedances Annual PM2.5 Avg. (µg/m3) 98th Percentile Value (µg/m3) 2008 248*‡ 2‡ 48.2 121.5* 2009 277*‡ 3‡ 44.5 213.0* @ @ 13.4@ 11.81@ @ @ 2010 111 0 36.2 64.1* 1 10.16# 24.3 *Indicates an exceedance of the standard. ‡Indicates exceptional events at this site. Listed value is the highest official current AQS reading. #Indicates <75% data completeness. @The PM2.5 monitor at Durango was not an official FEM monitor until 2010, so values recorded before do not count toward compliance standards. 2010 Air Monitoring Network Review 54 Maricopa County Air Quality Department Dysart (DY) (04-013-4010) Location: Bell Rd. & Dysart Rd., Surprise Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: The Dysart site was established in July 2003. It is located at the Maricopa County Facility Maintenance Yard at the corner of Bell Rd. and Dysart Rd. The site is in a growing population area in the northwest valley. The land use around the site consists of subdivisions of single family homes, commercial, and industrial. The site is approx. one mile west of the Agua Fria riverbed. Seasonal carbon monoxide, seasonal ozone, and PM10 (all SLAMS) are the criteria pollutants monitored at this station. In September 2009 the PM10 monitor was upgraded from a 1-in-6 day scheduled monitor to a continuous-monitoring TEOM. This upgrade took place in accordance with regulations due to a PM10 exceedance which occurred at the site. Carbon Monoxide Ozone PM10 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2008 1.0 0 0.074 0 0.067 75 0 25.1 2009 1.0 0 0.077 0 0.066 227*‡ 1 24.2 2010 0.9 0 0.082* 1 0.069 81 0 21.5 *Indicates an exceedance of the standard. ‡Indicates exceptional events at this site. Listed value is the highest official current AQS reading. #Indicates <75% data recovery. 2010 Air Monitoring Network Review 55 Maricopa County Air Quality Department Falcon Field (FF) (04-013-1010) Location: Greenfield and McKellips Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: Ozone is the seasonal SLAMS criteria pollutant monitored at this station. Monitoring began in June of 1989. The site is located near an airfield in a fire station within a growing residential area. Ozone Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year avg. of 4th High 2008 0.079* 3 0.075 2009 0.069 0 0.071 2010 0.074 0 0.070 *Indicates an exceedance of the standard. 2010 Air Monitoring Network Review 56 Maricopa County Air Quality Department Fountain Hills (FH) (04-013-9704) Location: Fountain Hills Blvd. and Palisades Blvd. Spatial Scale: Neighborhood Monitoring Objective: Maximum Ozone Concentrations Site Description: The site, located at a Fountain Hills fire station, became operational in April of 1996 and monitors ozone (SLAMS) and wind speed and direction. The site is located approximately 15 miles downwind from the Phoenix metropolitan area and represents the high downwind concentrations on the fringes of the central basin district along the predominant summer/fall daytime wind direction. Ozone Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year avg. of 4th High 2008 0.080* 7 0.079# 2009 0.075 0 0.074 2010 0.081* 3 0.074 *Indicates an exceedance of the standard. #Indicates a violation of the standard. 2010 Air Monitoring Network Review 57 Maricopa County Air Quality Department Glendale (GL) (04-013-2001) Location: 59th Ave. and Olive Ave. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: The Glendale site was established over three decades ago and is located on the grounds of Glendale Community College in a populous residential area. Homes, various strip malls, food establishments, and parks surround the site. Seasonal carbon monoxide, seasonal Ozone, and PM10 (all SLAMS) are the criteria pollutants monitored at this station. In September 2009 the PM10 monitor was upgraded from a 1-in-6 day filterbased monitor to a continuous-monitoring TEOM. This upgrade took place in accordance with regulations due to a PM10 exceedance which occurred at the site. Carbon Monoxide Ozone PM10 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2008 1.6 0 0.079* 3 0.074 80 0 26.5 2009 1.3 0 0.076* 1 0.071 196* 1 28.5 2010 3.0 0 0.083* 3 0.072 92 0 22.9 *Indicates an exceedance of the standard. 2010 Air Monitoring Network Review 58 Maricopa County Air Quality Department Greenwood (GR) (04-013-3010) Location: 27th Ave. and I-10, Phoenix Spatial Scale: Middle Monitoring Objective: Population Exposure Site Description: Monitoring began at this site in December 1993. The station is bordered on the north by Interstate 10, on the west and south by neighborhood homes, and to the east by Greenwood Cemetery. Interstate 17 is approximately one mile to the east of the site. Carbon monoxide, NO2, and PM10 are the criteria pollutants monitored at this SLAMS facility. This site was converted to continuous PM10 monitoring in the beginning of 2006. Carbon Monoxide PM10 Nitrogen Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Annual NO2 Avg. (PPB) NO2 1-hour Average 98th Percentile (PPB) 2008 2.7 0 133 0 42.6 25.98 73.0 2009 2.6 0 229*‡ 1 41.2 25.23 70.0 2010 3.0 0 158* 1 34.9 24.52 68.0 *Indicates an exceedance of the standard. ‡Indicates exceptional events at this site. Listed value is the highest official current AQS reading. 2010 Air Monitoring Network Review 59 Maricopa County Air Quality Department Higley (HI) (04-013-4006) Location: Higley Rd. and Williams Field Rd., Gilbert Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: Originally, in 1994, ADEQ set up this site to monitor for background particulate concentrations near the urban limits of Maricopa County. Since then, urban expansion has enveloped the site, so it no longer serves its original intended purpose. The Department installed a (1-in-6 day) PM10 (SLAMS) in the second quarter of 2000. The data from this site was compared to the Chandler site and was found to be comparable. Since the City of Chandler requested that the department remove the Chandler site on 12/31/05, this site has taken over the role of that site. As of October 2004 the 1-in-6 day PM10 monitor was replaced with an hourly continuous PM10 monitor in accordance with 40 CFR 50, Appendix K. This continuous monitor samples on the neighborhood scale with a monitoring objective of high population exposure. PM10 Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2008 133 0 40.2 2009 275*‡ 2‡ 38.4 2010 83 0 30.1 *Indicates an exceedance of the standard. ‡Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2010 Air Monitoring Network Review 60 Maricopa County Air Quality Department Humboldt Mountain (HM) (04-013-9508) Location: Humboldt Mountain Summit Spatial Scale: Regional Monitoring Objective: Maximum Ozone Concentrations Site Description: This site became operational in August 1995. The Humboldt Mountain site is located on Federal Aviation Agency property, in a National Forest Service building in the Tonto National Forest. This site is located approximately 40 miles north-northeast of the Phoenix metropolitan area at an elevation of 5190 feet. Ozone is the only criteria pollutant that is monitored at this SLAMS site. Ozone Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year avg. of 4th High 2008 0.080* 6 0.078# 2009 0.076* 1 0.074 2010 0.074 0 0.071 *Indicates an exceedance of the standard. #Indicates a violation of the standard. 2010 Air Monitoring Network Review 61 Maricopa County Air Quality Department Mesa (ME) (04-013-1003) Location: Broadway Rd. and Brooks Ave. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: This site is located at Brooks Reservoir at the western edge of the city near the Tempe border. It is centered in an area that contains residential, industrial, and a small amount of agricultural activity. An open field borders the site on the west with commercial development to the north, and light industry east and south of the site. Carbon monoxide, PM2.5, and PM10 are the criteria pollutants monitored at this SLAMS site. The department started operation of the PM2.5 Federal Reference Method monitor in May 2005. Carbon Monoxide PM10 PM2.5 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) Number of Daily Exceedances Annual PM2.5 Avg. (µg/m3) 98th Percentile Value (µg/m3) 2010 Air Monitoring Network Review 62 2008 1.4 0 71 0 22.4 24.0 0 8.50 14.5 2009 1.5 0 87 0 22.8 19.2 0 7.30 17.2 2010 1.4 0 86 0 17.4 14.0 0 6.25 11.8 Maricopa County Air Quality Department North Phoenix (NP) (04-013-1004) Location: 7th St. and Butler Ave. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: This site is located in the Sunnyslope area of North Phoenix. Sunnyslope is an older established neighborhood, primarily residential. High-density population surrounds the site. CO, ozone, and PM10 (all SLAMS) are monitored at this site, along with delta temperature (temperature inversion). Carbon Monoxide Ozone PM10 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2008 1.3 0 0.083* 9 0.081# 88 0 25.1 2009 1.3 0 0.076* 1 0.076# 69 0 23.8 2010 1.7 0 0.0.85* 6 0.077# 44 0 19.3 *Indicates an exceedance of the standard. #Indicates a violation of the standard 2010 Air Monitoring Network Review 63 Maricopa County Air Quality Department Pinnacle Peak (PP) (04-013-2005) Location: Pima Rd & Pinnacle Peak Spatial Scale: Urban Monitoring Objective: Maximum Ozone Concentrations Site Description: This SLAMS site for ozone is located on the roof of a golf course country club and is surrounded by residential homes. It is located in a geographic area of low-density population (less than 2500 people per square mile). In the current and previous years, ozone exceedances have been recorded due to transport of ozone and precursors from more urbanized areas of metropolitan Phoenix. Ozone Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year Avg. of 4th High 2008 0.080* 2 0.074 2009 0.079* 1 0.072 2010 0.080* 4 0.073 *Indicates an exceedance of the standard 2010 Air Monitoring Network Review 64 Maricopa County Air Quality Department Rio Verde (RV) (04-013-9706) Location: Forest Rd. and Del Ray Ave. Spatial Scale: Urban Monitoring Objective: Maximum Ozone Concentrations Site description: This ozone site became operational in spring of 1997. The monitor is located at the fire station / County Sheriff’s office sub-station located in a residential area surrounded by the desert of Tonto National Forest. The site is eight miles north of the Fountain Hills SLAMS station, on the edge of a Class I Wilderness Area. Ozone Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year Avg. of 4th High 2008 0.081* 7 0.080# 2009 0.071 0 0.075 2010 0.078* 1 0.073 *Indicates an exceedance of the standard #Indicates a violation of the standard. 2010 Air Monitoring Network Review 65 Maricopa County Air Quality Department South Phoenix (SP) (04-013-4003) Location: Central Ave. and Broadway Rd. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: The site was opened at its current location in October 1999. The site is at the edge of a high population area, but also borders on a mixture of residential and commercial (retail stores, food establishments, and office parks) land use. The station has two high population areas (>5000 people per square miles) north and west of the site. Carbon monoxide, ozone, and PM10 (all SLAMS) are the criteria pollutants monitored at this station. The department started operation of a PM2.5 FRM filter-based monitor in May 2005. A continuous Thermo Scientific 1405 PM2.5 monitor started operation at this site in December 2008. This monitor is classified as a Federal Equivalent Method (FEM), and therefore the data can be used for compliance purposes within AQS, though the FRM monitor is still considered the primary PM2.5 monitor at the site. Carbon Monoxide Ozone PM10 PM2.5 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) Number of Daily Exceedances Annual PM2.5 Avg. (µg/m3) 98th Percentile value (µg/m3) 2008 2.2 0 0.079* 4 0.072 230*‡ 2‡ 45.2 24.4 0 10.9 10.9 2009 2.6 0 0.075 0 0.071 250*‡ 3‡ 44.1 71.3* 2 11.0 34.5 2010 3.1 0 0.076* 1 0.072 120 0 35.0 63.4* (82.6*)# 1 (2)# 9.23 (7.98)# 24.0 *Indicates an exceedance of the standard. ‡Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. #First number is filter-based monitor; second number (in parenthesis) is continuous monitor. 2010 Air Monitoring Network Review 66 Maricopa County Air Quality Department South Scottsdale (SS) (04-013-3003) Location: Thomas Rd. and Miller Rd. Spatial Scale: Neighborhood, Urban (NO2) Monitoring Objective: Population Exposure Site Description: The South Scottsdale site is located at a City of Scottsdale Fire Station. The area surrounding the site is residential with a density of 2500 to 5000 persons per square mile. This site is located 12 miles east of metropolitan Central Phoenix. Carbon monoxide, ozone, NO2, SO2, and PM10 (all SLAMS) are the criteria pollutants monitored at this station. Carbon Monoxide Ozone PM10 Nitrogen Dioxide Sulfur Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Annual NO2 Avg. (PPB) NO2 1-hour Average 98th Percentile (PPB) Max. 24-hr SO2 Avg. (PPB) Number of Exceedances SO2 Annual SO2 Avg. (PPB) 2008 1.5 0 0.079* 6 0.077# 92 0 25.1 14.61 57.0 5 0 1.3 2009 1.4 0 0.074 0 0.075 135 0 25.5 13.86 52.0 6 0 1.2 2010 1.6 0 0.084* 4 0.075 37 0 17.4 13.92 53.0 3 0 1.3 *Indicates an exceedance of the standard. #Indicates a violation of the standard. 2010 Air Monitoring Network Review 67 Maricopa County Air Quality Department Tempe (TE) (04-013-4005) Location: Apache Blvd. & College Ave. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: The site was established in 2000 to fill in a spatial gap between the metropolitan Phoenix area and the city of Mesa. Ozone and carbon monoxide (both SLAMS) are monitored at the site. Wind speed and direction and delta temperature (temperature inversion) meteorological parameters are also monitored at this site. Carbon Monoxide Ozone Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year Avg. of 4th High 2008 1.8 0 0.082* 6 0.077# 2009 2.9 0 0.070 0 0.073 2010 1.9 0 0.075 0 0.071 *Indicates an exceedance of standard. #Indicates a violation of the standard. 2010 Air Monitoring Network Review 68 Maricopa County Air Quality Department West Chandler (WC) (04-013-4004) Location: Frye Rd. and Ellis St. Spatial Scale: Neighborhood, Middle (PM10) Monitoring Objective: Population Exposure Site Description: This site was first established in January 1995. The site was moved one half mile to the southeast in May 2000 when the Chandler fire station that hosts it relocated. A wide range of land uses surround the site including residential, agriculture, and heavy industry (semiconductor manufacturing plants and liquid air storage). Carbon monoxide, ozone, and PM10 are the criteria pollutants monitored at this SLAMS site. In September 2009 the PM10 monitor was upgraded from a 1-in-6 day scheduled monitor to a continuousmonitoring TEOM. This upgrade took place in accordance with regulations due to a PM10 exceedance which occurred at the site. Carbon Monoxide Ozone PM10 Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #Daily Exceedances >0.075 ppm (as of 2008) Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2008 1.4 0 0.079* 5 0.076# 66 0 22.9 2009 1.7 0 0.072 0 0.073 220*‡ 2‡ 27.9 2010 1.9 0 0.083* 2 0.074 76 0 23.3 *Indicates an exceedance of the standard. ‡Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. #Indicates a violation of the standard. 2010 Air Monitoring Network Review 69 Maricopa County Air Quality Department West 43rd Avenue (WF) (04-013-4009) Location: 43rd Ave. & Broadway Rd. Spatial Scale: Middle Monitoring Objective: Highest Concentrations Site Description: Monitoring began at the site in the 2nd quarter of 2002. This site is located at a Maricopa County Department of Transportation storage lot and is surrounded by a combination of heavy industry and residential homes. The site has one continuous TEOM PM10 monitor and a temperature inversion monitor, as well as other meteorological instruments. The main purpose of the site is to measure maximum concentration PM10 and to determine the impact on ambient pollution levels of significant sources or source categories. The sources around the site include sand and gravel operations, auto and metal recycling facilities, landfills, paved and unpaved haul roads, and cement casting. PM10 2008 278*‡ 6‡ 57.0 Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2009 317*‡ 7‡ 50.7 2010 112 0 39.4 *Indicates an exceedance of the standard. ‡Indicates Exceptional Events at this site. Listed value is the highest official current AQS reading. 2010 Air Monitoring Network Review 70 Maricopa County Air Quality Department West Indian School Road (WI) (04-013-0016) Location: 35th Avenue and Indian School Road Spatial Scale: Micro Monitoring Objective: Population Exposure Site Description: This site was located at a City of Phoenix Firefighter Training Center. This site was opened in December 1980 and was used to monitor micro-scale maximum concentrations based on high vehicular traffic. The Average Weekday Traffic (AWT) volume past this location on Indian School Road is estimated to be approximately 55,000 vehicles/day. The site was also in close proximity to Grand Ave. and 35th Ave., which have AWT volumes of about 35,000 vehicles/day. Carbon monoxide was monitored at this SLAMS site. The data collected at this site was very similar to that collected at the nearby West Phoenix site, which is neighborhood scale and just under two kilometers away. This implies that this micro-scale site was no longer necessary as this area is representative of the other neighborhood scale site. The City of Phoenix sold the training center building and MCAQD was required to move all monitoring equipment out by the end of June 2010. It was decided to close the site, not move it, because the West Phoenix site adequately represents this area. Carbon Monoxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO 2008 2.8 0 2009 4.2 0 2010 2.3* 0 *Site only operated from January to June 2010. 2010 Air Monitoring Network Review 71 Maricopa County Air Quality Department West Phoenix (WP) (04-013-0019) Location: 39th Ave. and Earll Dr. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure, Highest Concentration (PM2.5) Site Description: This site became operational in 1984. It is located about one-mile southwest of the West Indian School Road micro-scale CO monitor. The spatial scale for the West Phoenix site is neighborhood. It is located in an area of stable, high-density residential population. CO, PM10, O3, and NO2 (All SLAMS) are the criteria pollutants monitored at this site. The department also operates collocated PM2.5 FRM filter-based monitors and a continuous PM2.5 FEM monitor (SLAMS) at this site. Carbon Monoxide Ozone PM10 PM2.5 Nitrogen Dioxide Max. 8-hr CO Avg. (PPM) Number exceedances 8-hr CO Max. 8-hr O3 Avg. (PPM) O3 #of Daily Exceedances >0.075 ppm (as of 2008) Three year Avg. of 4th High Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) Max. 24-hr PM2.5 Avg. (µg/m3) Number of Daily Exceedances Annual PM2.5 Avg. (µg/m3) 98th Percentile Value Annual NO2 Avg. (PPB) NO2 1-hour Average 98th Percentile (PPB) 2008 3.1 0 0.081* 4 0.078# 113 0 37.8 29.1 0 10.60 10.6 18.51 60.0 2009 4.6 0 0.082 1 0.073 210* 1 35.9 81.2* 2 10.36 29.4 16.90 55.0 2010 4.3 0 0.082* 2 0.074 86 0 29.8 53.3* (55.3*)# 1 (2)# 8.36 (7.60)# 21.6 17.72 55.0 *Indicates an exceedance of the standard. #Indicates a violation of the standard. #First number is filter-based monitor; second number (in parenthesis) is continuous monitor. 2010 Air Monitoring Network Review 72 Maricopa County Air Quality Department Zuni Hills (ZH) (04-013-4016) Location: 1099th Ave. and Deer Valley Road. Spatial Scale: Neighborhood Monitoring Objective: Population Exposure Site Description: This site was opened in December 2009 and is located on the campus of the Zuni Hills elementary school, which is approximately 1.7 miles to the northeast from the now closed Coyote Lakes monitor. Coyote Lakes was a source-oriented, middle scale PM10 site that was situated in the Agua Fria River bottom adjacent to sand and gravel mines; Zuni Hills replaces this with a population-oriented neighborhood scale site that is situated on the higher-elevation river bank. This site will theoretically be able to represent the air quality for a larger area and a greater number of people. PM10 Max. 24-hr PM10 Avg. (µg/m3) Number exceedances 24-hr PM10 Annual PM10 Avg. (µg/m3) 2008 N/A N/A N/A 2009 27 0 16.1# 2010 70 0 20.7 #Indicates <75% data completeness. 2010 Air Monitoring Network Review 73 Maricopa County Air Quality Department APPENDIX II - EPA REQUIRED DATA Details compliance with requirements of 40CFR58 §58.10 and Appendices A, C, D, and E 2010 Air Monitoring Network Review 74 Maricopa County Air Quality Department Required General Information on Monitoring Network Pollutant MSA Carbon Monoxide 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa 6200 PhoenixMesa Ozone Nitrogen Dioxide PM2.5 PM10 Sulfur Dioxide MSA 2010 Maximum Design Pop.* Values 3,954,598 1-Hour: 9.0 ppm 8-Hour: 3.3 ppm 3,954,598 1-hour: 0.079 ppm #Monitors #Monitors Required Operating** 0 12 2 17 3,954,598 1-hour: 0.0790 ppm Annual: 0.0245 ppm 3,954,598 24-hour: 24.3 µg/m3 Annual: 10.2 µg/m3 3,954,598 24-hour: 279 µg/m3 Estimated Exceedances: 1 3,954,598 24-hour: 0.0054 ppm Annual: 0.00174 ppm 0 5 3 4 6-10 16 0 2 *Based on the 2008 United States Census population estimate. **Only includes monitors operated by the Maricopa County Air Quality Department; does not include monitors operated by other agencies within the MSA. Required General Statement Regarding Changes to the PM2.5 Network In the event the department needed to move or change a violating PM2.5 monitor the following procedure would be followed: The department would hold a public hearing regarding the requested change. Details and documentation of the requested change, as well as all public comments, would then be forwarded to the EPA for approval. Any action on the department’s part will be dependent on EPA approval. Please note that the previous statement is general in nature and is required to be placed in the annual network review by 40CFR58. The department does not currently have any violating PM2.5 monitors, nor does it have any proposals to move any PM2.5 monitors. Notes regarding appendix data Analysis Method (filters only) refers to the method used to process filter-based particulate samples. Distance from Supporting Structure refers to those sample probes that are attached to a supporting structure, such as the side of a building. In most cases the sample probe is located above the supporting structure, in which case the entry will say N/A. Distance from Obstructions refers to those obstructions, both on the roof and off the roof, which are located higher than the probe. In the case of a nearby obstruction being higher than the probe, details of its location will be listed in the entry. If there are no obstructions higher than the probe, then the entry will be N/A. Last Annual Performance Evaluation Date refers to the performance evaluations detailed in 40CFR58, Appendix A, §3.2.2. These performance evaluations are performed by an agency outside of MCAQD. At least 25% of the network should be evaluated once per calendar quarter. 2010 Air Monitoring Network Review 75 Maricopa County Air Quality Department Last Two Semi-Annual Flow Rate Audit Dates refers to the performance evaluations detailed in 40CFR58, Appendix A, §3.2.4. These performance evaluations are performed by an agency outside of MCAQD at least once every six months. Probe Sample Line Material refers to the material makeup of the intake sample lines. Pollutant Sample Residence Time refers to the amount of time that it takes a sample of air to travel between the probe inlet and the monitor. This residence time is calculated by a formula that is based on the sample line diameter and length and the flow rate of the air intake. It is important to keep this residence time low so as to prevent gases in the air sample from reacting with the sample line material or with other gases in the sample; e.g. ozone could react with nitrogen oxide in the air sample if the residence time exceeds 20 seconds. This measurement only applies to NO2, SO2, and O3 monitors. 2010 Air Monitoring Network Review 76 Maricopa County Air Quality Department BLUE POINT County ID: BP AQS ID: 04-013-9702 Address: Bush Highway & Usery Pass Road, Maricopa County Coordinates: 33.54549N – 111.60925W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 77 Ozone Continuous N/A No N/A 27 6 Yes Pending for July 2011 Bi-Weekly N/A API M400 01/01/1993 SLAMS FEM Max Ozone Concentration Urban Jan-Dec Yes N/A 5.3 meters 360º Teflon 7.6 sec N/A N/A N/A N/A Bush Highway 160 meters, South 1,000 Paved Maricopa County Air Quality Department BUCKEYE County ID: BE AQS ID: 04-013-4011 Address: 26449 W 100th DR, Buckeye Coordinates: 33.37005N – 111.62070W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Distance from Supporting Structure Probe Sample Line Material Pollutant Sample Residence Time Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A No N/A CO Continuous N/A No N/A NO2 Continuous N/A No N/A PM10 Continuous N/A No N/A 21 5 Yes 14 1 Yes 25 7 Yes 24 2 Yes Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 N/A Bi-Weekly API M400 API M300 API M200 08/01/2004 SLAMS FEM 08/01/2004 SLAMS FRM 08/01/2004 SLAMS FRM Thermo TEOM 1400AB 08/01/2004 SLAMS FEM Population Exposure Neighborhood Apr-Dec* Yes Population Exposure Neighborhood Sep-Mar Yes Source Oriented Urban Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A 4 meters 360º N/A Teflon 4.0 sec N/A N/A 14 meters, N US Hwy 85 31 meters, N 3,000 Paved N/A 4 meters 360º N/A Teflon N/A N/A N/A 14 meters, N US Hwy 85 31 meters, N 3,000 Paved N/A 4 meters 360º N/A Teflon 4.0 sec N/A N/A 14 meters, N US Hwy 85 31 meters, N 3,000 Paved N/A 4.5 meters 360º N/A N/A N/A N/A N/A 14 meters, N US Hwy 85 31 meters, N 3,000 Paved *Seasonal ozone monitors have been changed to year round operation in October 2010. 2010 Air Monitoring Network Review 78 Maricopa County Air Quality Department CAVE CREEK County ID: CC AQS ID: 04-013-4008 Address: 37019 N Lava Lane, Phoenix Coordinates: 33.82169N – 112.01739W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A No N/A 19 4 Yes Pending for July 2011 Bi-Weekly N/A API M400 07/20/2001 SLAMS FEM Max Ozone Concentration Urban Apr-Dec* Yes N/A 4.8 meters 360º Teflon 10.2 sec N/A N/A N/A 20 meters, E 32nd Street 240 meters, NE 1,000 Paved *Seasonal ozone monitors have been changed to year round operation in October 2010. 2010 Air Monitoring Network Review 79 Maricopa County Air Quality Department CENTRAL PHOENIX County ID: CP AQS ID: 04-013-3002 Address: 1645 E Roosevelt, Phoenix Coordinates: 33.45793N - 112.04601W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A No CO Continuous N/A No NO2 Continuous N/A No SO2 Continuous N/A No PM10 Continuous N/A No N/A N/A N/A N/A N/A 26 26 26 26 24 5 4 4 6 2 Yes Yes Yes Yes Yes Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 N/A Bi-Weekly API M400 API M300 API M200 API M100 Thermo TEOM 1400AB 06/01/1967 SLAMS FEM 10/01/1966 SLAMS FRM 01/01/1967 SLAMS FRM 01/01/1965 SLAMS FEM 04/01/1985 SLAMS FEM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Highest Concentration Neighborhood Jan-Dec Yes Highest Concentration Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A N/A N/A N/A N/A 11.3 meters 360º Teflon 9.0 sec N/A N/A N/A N/A 16th Street 88 meters, W 24,000 Roosevelt St. 75 meters, N Unknown Paved 11.3 meters 360º Teflon N/A N/A N/A N/A N/A 16th Street 88 meters, W 24,000 Roosevelt St. 75 meters, N Unknown Paved 11.3 meters 360º Teflon 9.0 sec N/A N/A N/A N/A 16th Street 88 meters, W 24,000 Roosevelt St. 75 meters, N Unknown Paved 11.3 meters 360º Teflon 10.0 sec N/A N/A N/A N/A 16th Street 88 meters, W 24,000 Roosevelt St. 75 meters, N Unknown Paved 11.3 meters 360º N/A N/A N/A N/A N/A N/A 16th Street 91 meters, W 24,000 Roosevelt St. 75 meters, N Unknown Paved 2010 Air Monitoring Network Review 80 Maricopa County Air Quality Department DEER VALLEY County ID: DV AQS ID: 04-013-4018 Address: 1030 West Deer Valley Road, Phoenix Coordinates: 33.684627N -112.08635W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover Lead 1 in 6 day Filters sent out to independent laboratory for weighing No N/A 46 (collocated) 0* Yes* Pending for July 2011 N/A Semi-Annual Hi-Q TSP Sampler 07/01/2010 SLAMS FRM Source Oriented Middle Scale Jan-Dec Yes 2.7 meters 4.1 meters 360º N/A N/A N/A N/A N/A N/A Deer Valley 300 meters, S 6,452 Paved *Calibrating instrument was damaged by manufacturer. A new calibrator was received in early 2011 and accuracy checks have been resumed. 2010 Air Monitoring Network Review 81 Maricopa County Air Quality Department DURANGO COMPLEX County ID: DC AQS ID: 04-013-9812 Address: 2702 RC Esterbrooks Blvd, Phoenix Coordinates: 33.42650N -112.11814W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 82 PM10 Continuous N/A No N/A PM2.5 Continuous N/A No Yes 22 2 Yes Pending for July 2011 N/A Bi-Weekly 16 1 Yes Pending for July 2011 N/A Bi-Weekly Thermo TEOM 1400AB 07/01/1999 SLAMS FEM Thermo FDMSTEOM 1400AB 07/01/2005 SLAMS FEM Highest Concentration Middle Jan-Dec Yes Highest Concentration Middle Jan-Dec Yes N/A 3.9 meters 360º N/A 4.8 meters 360º N/A N/A N/A N/A N/A N/A 14 meters, S 27th Ave 78 meters, E 16,000 Paved N/A N/A N/A N/A 14 meters, S 27th Ave 76 meters, E 16,000 Paved Maricopa County Air Quality Department DYSART County ID: DY AQS ID: 04-013-4010 Address: 16825 N Dysart Rd, Surprise Coordinates: 33.63713N – 112.34184W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A No N/A CO Continuous N/A No N/A PM10 Continuous N/A No N/A 18 3 Yes 12 3 Yes 24 2 Yes Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 N/A Monthly API M400 API M300 7/21/2003 SLAMS FEM 09/01/2003 SLAMS FRM Thermo TEOM 1400AB 07/14/2003 SLAMS FRM Population Exposure Neighborhood Apr-Dec* Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes N/A 3.3 meters 360º Teflon 4.8 sec N/A N/A N/A N/A Dysart 17 meters, W 12,000 Bell Rd 495 meters, N 43,000 Paved/Gravel N/A 3.3 meters 360º Teflon N/A N/A N/A N/A N/A Dysart 17 meters, W 12,000 Bell Rd 495 meters, N 43,000 Paved/Gravel N/A 2.6 meters 360º N/A N/A N/A N/A N/A N/A Dysart 12 meters, W 12,000 Bell Rd 460 meters, N 43,000 Paved/Gravel *Seasonal ozone monitors have been changed to year round operation in October 2010. 2010 Air Monitoring Network Review 83 Maricopa County Air Quality Department FALCON FIELD County ID: FF AQS ID: 04-013-1010 Address: 4530 E McKellips Rd, Mesa Coordinates: 33.45223N – 111.73331W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A No N/A 23 4 Yes Pending for July 2011 Bi-Weekly N/A API M400 06/01/1989 SLAMS FEM Population Exposure Neighborhood Apr-Dec* Yes N/A 9.3 meters 360º Teflon 16.4 sec N/A N/A N/A N/A McKellips 58 meters, S 29,000 Paved *Seasonal ozone monitors have been changed to year round operation in October 2010. 2010 Air Monitoring Network Review 84 Maricopa County Air Quality Department FOUNTAIN HILLS County ID: FH AQS ID: 04-013-9704 Address: 16426 E Palisades Blvd, Fountain Hills Coordinates: 33.61103N – 111.72529W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 85 Ozone Continuous N/A No N/A 22 5 Yes Pending for July 2011 Bi-Weekly N/A API M400 04/01/1996 SLAMS FEM Max Ozone Concentration Neighborhood Jan-Dec Yes N/A 4.3 meters 360º Teflon 4.8 sec N/A Canopy 1 meter higher than probe, located 9 meters to the south N/A 15 meters, W Palisades Blvd 70 meters, SW 8,000 Paved Maricopa County Air Quality Department GLENDALE County ID: GL AQS ID: 04-013-2001 Address: 6001 W Olive, Glendale Coordinates: 33.56936N – 112.19153W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A No N/A CO Continuous N/A No N/A PM10 Continuous N/A No N/A 19 3 Yes Pending for July 2011 Bi-Weekly N/A 13 2 Yes Pending for July 2011 Bi-Weekly N/A 24 2 Yes Pending for July 2011 N/A Monthly API M400 API M300 01/01/1974 SLAMS FEM 01/01/1974 SLAMS FRM Thermo TEOM 1400AB 07/01/1987 SLAMS FRM Population Exposure Neighborhood Apr-Dec* Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes N/A 6.0 meters 360º Teflon 15.5 sec N/A N/A N/A N/A Olive Ave 225 meters, S 25,000 59th Ave 475 meters, E 30,500 Paved N/A 6.0 meters 360º Teflon N/A N/A N/A N/A N/A Olive Ave 225 meters, S 25,000 59th Ave 475 meters, E 30,500 Paved N/A 7.4 meters 360º N/A N/A N/A N/A N/A N/A Olive Ave 227 meters, S 25,000 59th Ave 430 meters, E 30,500 Paved *Seasonal ozone monitors have been changed to year round operation in October 2010. 2010 Air Monitoring Network Review 86 Maricopa County Air Quality Department GREENWOOD County ID: GR AQS ID: 04-013-3010 Address: 1128 N 27th Ave., Phoenix Coordinates: 33.46093N – 112.11748W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review CO Continuous N/A No N/A NO2 Continuous N/A No N/A PM10 Continuous N/A No N/A 26 3 Yes Pending for July 2011 Bi-Weekly N/A 28 5 Yes Pending for July 2011 Bi-Weekly N/A 24 2 Yes Pending for July 2011 N/A Bi-Weekly API M300 API M200 11/01/1993 SLAMS FRM 11/01/1993 SLAMS FRM Thermo TEOM 1400AB 11/01/1993 SLAMS FEM Population Exposure Middle Jan-Dec Yes Population Exposure Middle Jan-Dec Yes Population Exposure Middle Jan-Dec Yes N/A 4.2 meters 360º Teflon N/A N/A N/A N/A 20 meters, NW 27th Ave 10 meters, E 18,500 I-10 85 meters, N 229,000 Paved N/A 4.2 meters 360º Teflon 4.3 sec N/A N/A N/A 20 meters, NW 27th Ave 10 meters, E 18,500 I-10 85 meters, N 229,000 Paved N/A 4.4 meters 360º N/A N/A N/A N/A N/A 20 meters, NW 27th Ave 10 meters, E 18,500 I-10 85 meters, N 229,000 Paved 87 Maricopa County Air Quality Department HIGLEY County ID: HI AQS ID: 04-013-4006 Address: 15400 South Higley Road, Gilbert Coordinates: 33.31074N – 111.72255W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 88 PM10 Continuous N/A No N/A 24 2 Yes Pending for July 2011 N/A Bi-Weekly Thermo TEOM 1400AB 07/01/2000 SLAMS FEM Population Exposure Neighborhood Jan-Dec Yes N/A 2.9 meters 360º N/A N/A N/A N/A N/A N/A Higley Rd 117 meters, E 11,500 Williams Field Rd 410 meters, S 11,500 Paved Maricopa County Air Quality Department HUMBOLDT MOUNTAIN County ID: HM AQS ID: 04-013-9508 Address: Seven Springs Rd-FAA Radar Station, Tonto National Forest Coordinates: 33.98280N – 111.79870W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A No N/A 22 3 Yes Pending for July 2011 Bi-Weekly N/A API M400 01/01/1993 SLAMS FEM Max Ozone Concentration Regional Apr-Dec* Yes N/A 4.5 meters 360º Teflon 6.2 sec N/A N/A N/A N/A N/A (Remote mountaintop site, only reachable by small access road) N/A N/A Dirt/Vegetated *Seasonal ozone monitors have been changed to year round operation in October 2010. 2010 Air Monitoring Network Review 89 Maricopa County Air Quality Department MESA County ID: ME AQS ID: 04-013-1003 Address: 310 S Brooks, Mesa Coordinates: 33.41045N – 111.86507W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review CO Continuous N/A No N/A PM2.5 1 in 3 day Filters Weighed In-House No Yes PM10 1 in 6 day Filters Weighed In-house No N/A 13 3 Yes Pending for July 2011 Bi-Weekly N/A N/A 2 Yes Pending for July 2011 N/A Every 6 Weeks N/A 1 Yes Pending for July 2011 N/A Quarterly API M400 01/01/1978 SLAMS FEM Thermo 2025 04/28/2005 SLAMS FRM Anderson SSI 01/23/1990 SLAMS FRM Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A 7 meters 360º Teflon N/A N/A N/A N/A N/A Broadway Rd. 305 meters, S 33,000 Paved/Gravel N/A 6.9 meters 360º N/A N/A N/A N/A N/A N/A Broadway Rd. 305 meters, S 33,000 Paved/Gravel 3.3 meters 6.2 meters 360º N/A N/A N/A N/A N/A N/A Broadway Rd. 305 meters, S 33,000 Paved/Gravel 90 Maricopa County Air Quality Department NORTH PHOENIX County ID: NP AQS ID: 04-013-1004 Address: 601 E Butler Dr., Phoenix Coordinates: 33.56033N – 112.06626W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review Ozone Continuous N/A CO Continuous N/A No N/A No N/A PM10 1 in 6 day Filters Weighed In-House No N/A 25 5 Yes 16 1 Yes N/A 1 Yes Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 N/A Quarterly API M400 01/01/1975 SLAMS FEM API M300 01/01/1974 SLAMS FRM Anderson SSI 01/05/1990 SLAMS FRM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes N/A 4.6 meters 360º Teflon 5.0 sec N/A N/A N/A N/A 7th Street 75 meters, E 32,000 Gravel N/A 4.6 meters 360º Teflon N/A N/A N/A N/A N/A 7th Street 75 meters, E 32,000 Gravel N/A 4.4 meters 360º N/A N/A N/A N/A N/A N/A 7th Street 75 meters, E 32,000 Gravel 91 Maricopa County Air Quality Department PINNACLE PEAK County ID: PP AQS ID: 04-013-2005 Address: 25000 N Windy Walk, Scottsdale Coordinates: 33.71231N – 111.85272W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 92 Ozone Continuous N/A No N/A 26 5 Yes Pending for July 2011 Bi-Weekly N/A API M400 02/01/1988 SLAMS FEM Max Ozone Concentration Urban Jan-Dec Yes N/A 11.9 meters 360º Teflon 20.0 sec N/A N/A N/A N/A Happy Valley Rd. 61 meters, S 16,000 Paved/Grass Maricopa County Air Quality Department RIO VERDE County ID: RV AQS ID: 04-013-9706 Address: 25608 N Forest Rd., Rio Verde Coordinates: 33.71881N – 111.67183W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A No N/A 19 3 Yes Pending for July 2011 Bi-Weekly N/A API M400 01/01/1997 SLAMS FEM Max Ozone Concentration Urban Apr-Dec* Yes N/A 6.2 meters 360º Teflon 9.7 sec N/A N/A N/A 16 meters, S Forest Rd 43 meters, E Unknown Paved *Seasonal ozone monitors have been changed to year round operation in October 2010. 2010 Air Monitoring Network Review 93 Maricopa County Air Quality Department SOUTH PHOENIX County ID: SP AQS ID: 04-013-4003 Address: 33 W Tamarisk, Phoenix Coordinates: 33.40316N – 112.07533W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover Ozone Continuous N/A CO Continuous N/A PM2.5 1 in 3 day Filters Weighed In-House PM2.5 Continuous N/A PM10 Continuous N/A No No No No No N/A N/A Yes Yes N/A 26 5 Yes 15 1 Yes N/A 2 Yes 16 3 Yes 24 2 Yes Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 N/A Every 6 Weeks Pending for July 2011 N/A Pending for July 2011 N/A Bi-Monthly API M400 API M300 Thermo 2025 10/01/1999 SLAMS FEM 10/01/1999 SLAMS FRM 01/01/2005 SLAMS FRM Thermo FDMSTEOM 1405-DF 05/01/2010 SLAMS FEM Thermo TEOM 1400AB 7/1/2007 SLAMS FEM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A 4.9 meters 360º Teflon 6.9 sec N/A N/A N/A N/A Central Ave 168 meters, E 24,000 Broadway Rd 385 meters, N 18,000 Paved N/A 4.9 meters 360º Teflon N/A N/A N/A N/A N/A Central Ave 168 meters, E 24,000 Broadway Rd 385 meters, N 18,000 Paved N/A 5.5 meters 360º N/A N/A N/A N/A N/A N/A Central Ave 168 meters, E 24,000 Broadway Rd 385 meters, N 18,000 Paved N/A 5.5 meters 360º N/A N/A N/A N/A N/A N/A Central Ave 168 meters, E 24,000 Broadway Rd 385 meters, N 18,000 Paved N/A 5.4 meters 360º N/A N/A N/A N/A N/A N/A Central Ave 165 meters, E 24,000 Broadway Rd 385 meters, N 13,000 Paved *Unavailable at time of publication 2010 Air Monitoring Network Review 94 Maricopa County Air Quality Department SOUTH SCOTTSDALE County ID: SS AQS ID: 04-013-3003 Address: 2857 N Miller Rd., Scottsdale Coordinates: 33.47968N – 111.91721W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Ozone Continuous N/A CO Continuous N/A NO2 Continuous N/A SO2 Continuous N/A Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually No N/A No N/A No N/A No N/A 26 15 27 26 # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? 4 Yes 2 Yes 4 Yes 5 Yes 60 (Collocated) 1 Yes Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 N/A Quarterly API M400 01/01/1974 SLAMS FEM API M300 01/01/1974 SLAMS FRM API M200 10/01/1975 SLAMS FRM API M100 01/01/1984 SLAMS FEM Anderson SSI 07/01/1987 SLAMS FRM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Urban Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A 5.8 meters 360º Teflon 11.1 sec N/A N/A N/A 14 meters, S Thomas 66 meters, N 33,000 Miller 32 meters, W 13,000 Paved N/A 5.8 meters 360º Teflon N/A N/A N/A N/A 14 meters, S Thomas 66 meters, N 33,000 Miller 32 meters, W 13,000 Paved N/A 5.8 meters 360º Teflon 11.1 sec N/A N/A N/A 14 meters, S Thomas 66 meters, N 33,000 Miller 32 meters, W 13,000 Paved N/A 5.8 meters 360º Teflon 12.1 sec N/A N/A N/A 14 meters, S Thomas 66 meters, N 33,000 Miller 32 meters, W 13,000 Paved 6.5 meters 5.1 meters 360º N/A N/A N/A N/A N/A 14 meters, S Thomas 62 meters, N 33,000 Miller 35 meters, W 13,000 Paved Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 95 PM10 1 in 6 day Filters Weighed InHouse No N/A Maricopa County Air Quality Department TEMPE County ID: TE AQS ID: 04-013-4005 Address: 1525 S College, Tempe Coordinates: 33.4124N – 111.93473W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review Ozone Continuous N/A No N/A CO Continuous N/A No N/A 22 3 Yes Pending for July 2011 Bi-Weekly N/A 14 3 Yes Pending for July 2011 Bi-Weekly N/A API M400 07/01/2000 SLAMS FEM API M300 07/01/2000 SLAMS FRM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Sep-Mar Yes N/A 4.4 meters 360º Teflon N/A 4.4 meters 360º Teflon N/A N/A N/A N/A N/A College Ave 11 meters, W Unknown (secondary street) Apache 370 meters, N 25000 Gravel 5.4 sec N/A N/A N/A N/A College Ave 11 meters, W Unknown (secondary street) Apache 370 meters, N 25000 Gravel 96 Maricopa County Air Quality Department WEST CHANDLER County ID: WC AQS ID: 04-013-4004 Address: 275 S Ellis, Chandler Coordinates: 33.29898N – 111.88431W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements Ozone Continuous N/A No N/A CO Continuous N/A No N/A PM10 Continuous N/A No N/A # Precision Checks Performed Annually 22 15 24 # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? 4 Yes Pending for July 2011 Bi-Weekly N/A 1 Yes Pending for July 2011 Bi-Weekly N/A 2 Yes Pending for July 2011 N/A Monthly API M400 07/01/2000 SLAMS FEM API M300 07/01/2000 SLAMS FRM Anderson SSI 07/01/2000 SLAMS FRM Population Exposure Neighborhood Apr-Dec* Yes Population Exposure Neighborhood Sep-Mar Yes Population Exposure Middle Jan-Dec Yes N/A 4.4 meters 360º Teflon 4.6 sec N/A N/A N/A 14 meters, E Frye Rd 23 meters, S Unknown (secondary street) Ellis St 73 meters, W Unknown (secondary street) Paved/Gravel N/A 4.4 meters 360º Teflon N/A N/A N/A N/A 14 meters, E Frye Rd 23 meters, S Unknown (secondary street) Ellis St 73 meters, W Unknown (secondary street) Paved/Gravel N/A 4.4 meters 360º N/A N/A N/A N/A N/A 14 meters, E Frye Rd 25 meters, S Unknown (secondary street) Ellis St 71 meters, W Unknown (secondary street) Paved/Gravel Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway A Distance and Direction to Road Traffic Count (ADT) Nearest Major Roadway B Distance and Direction to Road Traffic Count (ADT) Groundcover *Seasonal ozone monitors have been changed to year round operation in October 2010. 2010 Air Monitoring Network Review 97 Maricopa County Air Quality Department WEST 43RD AVENUE County ID: WF AQS ID: 04-013-4009 Address: 3940 W Broadway, Phoenix Coordinates: 33.40642N – 112.14434W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 98 PM10 Continuous N/A No N/A 26 1 Yes Pending for July 2011 N/A Bi-Weekly Thermo TEOM 1400AB 04/01/2002 SLAMS FEM Highest Concentrations Middle Jan-Dec Yes N/A 5 meters 360º N/A N/A N/A N/A N/A N/A Broadway Road 37 meters, SE Unknown Gravel Maricopa County Air Quality Department WEST INDIAN SCHOOL ROAD County ID: WI AQS ID: 04-013-0016 Address: 3315 W Indian School Rd, Phoenix Coordinates: 33.49462N – 112.13095W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 99 CO Continuous N/A Yes, site closed June 2010 N/A 13 2 Yes Pending for July 2011 Bi-Weekly N/A API M300 12/01/1980 SLAMS FRM Highest Concentration Micro-scale Jan-Dec Yes N/A 2.6 meters 360º Teflon N/A 2 meters from side of building Roofline 2 meters to South, .5 meters above probe N/A N/A Indian School Road 3 meters, N 50,000 Paved Maricopa County Air Quality Department WEST PHOENIX County ID: WP AQS ID: 04-013-0019 Address: 3847 W Earll, Phoenix Coordinates: 33.48385N – 112.14257W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Ozone Continuous N/A CO Continuous N/A NO2 Continuous N/A PM2.5 Continuous N/A PM10 Continuous N/A No PM2.5 1 in 3 days Filters Weighed InHouse No No No No No N/A N/A N/A Yes Yes N/A 25 26 25 18 23 5 4 5 28 (Collocated) 2 1 2 Yes Yes Yes Yes Yes Yes Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 Bi-Weekly N/A Pending for July 2011 N/A Every 6 weeks Pending for July 2011 N/A Bi-Weekly Pending for July 2011 N/A Bi-Weekly API M400 API M300 API M200 Thermo 2025 Thermo FDMS-TEOM 1400AB Thermo TEOM 1400AB 01/01/84 SLAMS FEM 01/01/84 SLAMS FRM 05/24/90 SLAMS FRM 06/13/00 SLAMS FRM 09/01/05 SLAMS None 02/01/88 SLAMS FEM Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes Highest Concentration Neighborhood Jan-Dec Yes Highest Concentration Neighborhood Jan-Dec Yes Population Exposure Neighborhood Jan-Dec Yes N/A N/A N/A 2.3 meters N/A N/A 4.3 meters 360º 4.3 meters 360º 4.3 meters 360º 3.6 meter 360º N/A 2.7 meters 360º N/A Probe Sample Line Material Pollutant Sample Residence Time Teflon Teflon Teflon 2.8 meter 360º N/A 4.4 sec N/A 4.4 sec N/A N/A N/A Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel N/A N/A N/A N/A Thomas 360 meters, S 29,000 Gravel 2010 Air Monitoring Network Review 100 Maricopa County Air Quality Department ZUNI HILLS County ID: ZH AQS ID: 04-013-4016 Address: 10851 West Williams Rd., Sun City, AZ Coordinates: 33.68674N, -112.29417W Metropolitan Sampling Area (MSA): 6200 Phoenix-Mesa -General Information Pollutant/Monitor Type Sampling Schedule Analysis Method (filters only) Any Proposal to Remove or Move Monitor? Is site suitable for comparison to PM2.5 NAAQS per Part 58.30? -Appendix A Requirements # Precision Checks Performed Annually # Accuracy Checks Performed Annually All Precision/Accuracy Reports Submitted to AQS? Annual Data Certification Submitted? Frequency of One-Point QC Check Frequency of Flow Rate Verification -Appendix C Requirements Sampler Make & Model Date Established Classification Method (FRM, FEM, ARM) -Appendix D Requirements Monitoring Objective Monitoring Scale Sampling Season Network Meets Minimum Number of Monitors Required? -Appendix E Requirements Distance between collocated samplers Probe Inlet Height Airflow Arc Probe Sample Line Material Pollutant Sample Residence Time Distance from Supporting Structure Distance from Obstructions Distance to Furnace Flue Spacing from Trees Nearest Major Roadway Distance and Direction to Road Traffic Count (ADT) Groundcover 2010 Air Monitoring Network Review 101 PM10 Continuous N/A No N/A 23 2 Yes Pending for July 2011 N/A Bi-Weekly Thermo TEOM 1400AB 12/01/09 SLAMS FEM Population Exposure Neighborhood Scale Jan-Dec Yes N/A 2.3 meters 360º N/A N/A N/A N/A N/A N/A Williams Rd 200 meters, N Unknown (residential street) Lawn/Dirt Maricopa County Air Quality Department APPENDIX III - PUBLIC NOTICE AND COMMENT INFORMATION 2010 Air Monitoring Network Review 102 Maricopa County Air Quality Department Public Notice Period To fulfill the requirements of 40CFR58 §58.10, the Maricopa County Air Quality Department posted a draft copy of this Network Review on its website on . In an effort to notify the public of its network review, the department published information on a Network Review Public Workshop through the following outlets: x News item on department website. x Electronic feed to subscribers. x Public Notice posted in the Arizona Republic, a newspaper of general circulation in Maricopa County. News Release The following is a copy of the news release that was advertised in the Arizona Republic: Public Notice The Maricopa County Air Quality Department will hold a public meeting to discuss its 2010 Air Monitoring Network Review on . The meeting will be held at the Air Monitoring Division’s offices at 2145 S. 11th Ave. suite 170, Phoenix, AZ 85007. A copy of the draft network review is currently available on the department’s website at the following website address: http://www.maricopa.gov/aq/divisions/monitoring/network.aspx Hard copies of the document may be requested from the department’s Records Management Coordinator at (602) 506-6201 or at the department's address: 1001 North Central Avenue, Phoenix, Arizona 85004. Arrangements may be made to view the information every Monday through Friday (excluding major holidays) between 8:00 a.m. and 4:30 p.m. There is a small fee for copying available documents. The 2010 Air Monitoring Network Review covers ambient air monitoring activity captured by the department’s 25 air monitoring sites throughout 2010. The Air Monitoring Network Review also provides a summary of the pollutants measured by Maricopa County, a look at the air monitoring network design and monitoring site details and statistics from the past year among other information. Additional information on the draft Air Monitoring Network Review may be obtained by contacting Ben Davis at 2145 S 11th Avenue #170, Phoenix, AZ 85007 or (602) 258-5155 x221. The purpose of public meeting is to receive comments from the public on the draft Network Review. Members of the public may comment in person or through written statements to the department. Written comments shall state the name and mailing address of the person making comment and be signed by that person or authorized agent or attorney. Written comments on the draft document are due to the department by at 5:00 p.m. A sign language and/or Spanish interpreter will be made available upon request with 72 hours notice. Additional reasonable accommodations will be made available to the extent possible within the time frame of the request. Dates of Publication: 2010 Air Monitoring Network Review 103 Maricopa County Air Quality Department Arizona Republic: . Public Comments 2010 Air Monitoring Network Review 104 Maricopa County Air Quality Department