NOTICE OF 30-DAY COMMENT PERIOD FOR 2023 PERIODIC EMISSIONS INVENTORY (PEI) FOR OZONE PRECURSORS AND PARTICULATE MATTER

NOTICE OF 30-DAY COMMENT PERIOD FOR 2023 PERIODIC EMISSIONS INVENTORY (PEI) FOR OZONE PRECURSORS AND PARTICULATE MATTER NOTICE IS HEREBY GIVEN that the Maricopa County Air Quality Department (MCAQD) posted the draft PEI reports for ozone and particulate matter. The draft PEI for ozone includes emission estimates for three precursors to ozone formation: volatile organic compounds, nitrogen oxides, and carbon monoxide. Annual and season-day emissions are calculated for Maricopa County, the 2008 8-hour ozone nonattainment area, and the 2015 8-hour ozone nonattainment area. The draft PEI for particulate matter includes emission estimates for particulate matter less than 10 and 2.5 microns in diameter (PM10 and PM2.5), as well as three precursors to secondary particulate matter formation: nitrogen oxides, sulfur oxides, and ammonia. Annual and average daily emissions are calculated for Maricopa County and the PM10 nonattainment area. MCAQD invites the public to review the draft PEI for ozone precursors and the draft PEI for particulate matter at www.maricopa.gov/2652 and to submit your comments to Maricopa County Air Quality Department, Emissions Inventory Unit, 301 W. Jefferson St., Suite 410, Phoenix, AZ 85004, or by email to EmissionsInventory@maricopa.gov. Comments must be received no later than April 25, 2026. Interested persons may request a public hearing in writing. Requests for a public hearing must be received prior to April 25, 2026. MCAQD will take reasonable measures to provide access to department services to individuals with limited ability to speak, write, or understand English and/or to those with disabilities. Requests for language interpretation services or for disability accommodations must be made at least 48 hours in advance by contacting: 602-506-6443. MCAQD (por sus siglas en inglés) tomará las medidas necesarias para brindar acceso a los servicios del departamento a personas que no dominan el idioma inglés y/o personas con discapacidades. Las solicitudes de servicios de interpretación de otro idioma o adaptaciones para discapacitados deben realizarse con al menos 48 horas de anticipación comunicándose con: 602-506-6443. March 26, April 2 2026 LAZS0483128