ANNUAL R E P O R T July 1, 2024 - June 30, 2025 Working to improve the air of Maricopa County so customers, residents, and visitors can live, work, and play in a healthy environment. 602-372-2703 Report an Air Quality Concern 602-506-6010 Air Quality Main Line https://www.maricopa.gov/1244/Air-QualMaricopa.gov/AQ ity 301 W. Jefferson St., Suite 410 Phoenix, AZ 85003 Air Monitoring 23 MONITORING SITES in the Air Quality Monitoring Network 55 186 INSTRUMENTS in the Network ANALYZERS measuring National Ambient Air Quality Standards criteria pollutants 4,464 HOURLY READINGS per 24 hour period 297 OUT OF 365 GOOD AIR DAYS Finance FY2025 operating expenses were below budget. Revenue exceeded budget due to continued robust industry activity and thoughtful planning and stewardship of resources. $20,469,790 FUNDING SOURCES Permits FY2025 FY2024 4,625 1,224 3,852 890 590 18 4,695 1,322 3,659 1,184 397 17 Dust Control Permits Issued Asbestos Notifications Subcontractor Registrations General Permit ATOs* Issued Non-Title V Permit Actions Title V Permit Actions *ATOs=Authorities to Operate PERMIT FEES: 68.33% GRANTS: 18.78% TRAINING AND OTHER: 6.99% GENERAL FUND: 5.36% FINES: 0.54% 793 EMISSIONS INVENTORIES An emissions inventory shows annual air pollutant emissions for one specific business location. During FY2025, 215 original submissions and 578 revisions were submitted. Planning and Analysis 3 substantive policy statements issued 17 standard operating procedures revised 5 14 RULES ADOPTED standard operating procedures issued Rule 203 Rule 205 Rule 313 Rule 326 Rule 327 Rule 330 Rule 331 Rule 335 Rule 338 Rule 360 Rule 360 Rule 370 Rule 371 Rule 510 Appendix G Compliance and Enforcement The Compliance and Enforcement Division is responsible for inspecting facilities to determine compliance with applicable regulations and permit conditions. FACILITIES FOUND IN COMPLIANCE FY2025 86% FY2024 86% FY2023 84% 7,396 FACILITY INSPECTIONS 10,472 FY2025 PEOPLE TRAINED 12,754 10,299 FY2024 FY2023 INSPECTIONS CONDUCTED customers received required dust control training online Records RECORDS REQUESTS FY2025 354 FY2024 408 5,123 VIEWS of Air Quality Records and Data Portals 92 PUBLIC NOTICES 13.2 % REDUCTION in public record requests 7 PUBLIC HEARINGS Travel Reduction Program 1,186 PARTICIPATING EMPLOYERS AND 3,159 WORK SCHOOL SITES 7,066,045 at DAILY COMMUTING MILES REDUCED TOTAL PARTICIPANTS 7,286 703,873 300,926 EMPLOYEES TONS of STUDENTS 1,004,799 POLLUTION PREVENTED employees and driving-aged students surveyed Outreach POSITIVE CUSTOMER EXPERIENCE 95% 250 out of 264 customers rated their experience with the department good or outstanding people participated in outreach events and air quality kiosk interactions community liason interactions presentations number of students reached through: 116 171 schools and programs 88 districts and partnerships SOCIAL MEDIA IMPRESSIONS 805,033 56 STUDENTS INFORMED classroom visits COMMUNITY PARTICIPATION 1,493 18,050 65 events CLEAN AIR CAMPAIGN 127,889,655 IMPRESSIONS number of times campaign content was viewed NEXTDOOR FACEBOOK X (formerly Twitter) LINKEDIN INSTAGRAM 1,837,184 111,984 63,794 352 11,526 77,154 TOTAL MOBILE APP DOWNLOADS 11,001 app downloads in FY2025 Business Assistance 87 11,959 STAKEHOLDERS COURTESY SITE VISITS received industry bi-annual newsletter Air Pollution Reduction Programs Mowing Down Pollution 2,256 TOTAL FY2025 FY2024 292 TOTAL POLLUTION PREVENTED (IN TONS) gas powered lawn mowers replaced with electric or battery powered lawn mowers since FY2018 73 86 HANDHELD DEVICES CO VOCs 10.44 0.72 CO 0.73 VOCs 0.33 1.11 0.50 11.44 5.20 FY2025 FY2024 12.02 0.83 TOTAL gas powered handheld devices replaced FY2025 FY2024 LAWN MOWERS 18 26 SINCE FY2018 320.12 22.17 CO = carbon monoxide VOCs = volatile organic compounds Diesel Emissions Reduction Act (DERA) 137 118 VEHICLES REPLACED VEHICLES FUNDED SINCE FY2016 19 VEHICLES RETROFITTED with cleaner burning diesel fuel engines, liquefied petroleum gas (LPG) engines, compressed natural gas (CNG) engines, or electric engines TOTAL LIFETIME NOX REDUCTIONS BY YEAR NOX = nitrogen oxide FY2025 2.85 TONS FY2024 1.44 TONS TOTAL TO DATE 90.97 TONS Propane Fire Pit Program 6,216 PROPANE FIREPITS have reduced wood burning since FY2018 PROPANE FIRE PITS PURCHASED FY2025 485 FY2024 304 18,648 POUNDS of PM2.5 pollution reduced since FY2018 Fireplace Retrofit Program TOTAL PM2.5 EMISSIONS PREVENTED* 906 PM2.5 = particulate matter less than or equal to 2.5 microns Gas Log Set 31,791 LBS TOTAL RETROFITS Air Pollution Reduction Device 10,388 LBS TOTAL : 42,179 LBS * The maximum fire pit and fireplace emissions prevented are based upon a resident’s burning-habits survey, which represent a range of numbers. 668 GAS LOG SETS INSTALLED 238 AIR POLLUTION REDUCTION DEVICES INSTALLED