Highlights

AIR QUALITY ALERT: Maricopa County is under a High Pollution Advisory for Friday, Aug. 7, with PM2.5 and PM10 levels forecast to accumulate enough to exceed the federal health standard, according to a Maricopa County notice published at 9:54 a.m.

The Arizona Department of Environmental Quality confirmed the advisory is in effect for both PM10 and PM2.5 for the day, with reduced storm activity anticipated over parts of the region. The National Weather Service Phoenix office also issued an Air Quality Alert covering the same advisory, directing residents to ADEQ's Phoenix forecast page or the agency's information line at 602-771-2300 for details.

Friday's advisory is the latest in a series of summer air-quality actions for Maricopa County. ADEQ issued ozone advisories covering July 23 and 24, July 1 through 3, and May 1 and 2 earlier this year.

Residents with respiratory conditions, the elderly, and children are typically most affected during high-pollution events. ADEQ's Phoenix forecast page is updated throughout the day.

Sources

Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.

  1. Maricopa County retrieved 07/08/2026 17:45
  2. azdeq.gov retrieved 07/08/2026 17:45
  3. forecast.weather.gov retrieved 07/08/2026 17:45
  4. Maricopa County retrieved 07/08/2026 17:45
  5. Maricopa County retrieved 07/08/2026 17:45
  6. Maricopa County retrieved 07/08/2026 17:45

Authored by The Scottsdale Signal. Drafted by AI from primary-source material under our beat-specific editorial guides; reviewed by humans before publish under our five-gate process. Sources retrieved at 07/08/2026 17:45. Every claim traces to a source.