The Arizona Department of Environmental Quality issued an Ozone High Pollution Advisory for the Phoenix Metro Area on Thursday, July 22. The alert, effective at 8:53 a.m. MST, warns that forecast weather conditions combined with existing ozone levels are expected to produce local maximum 8-hour ozone concentrations that pose a health risk.

Ozone can cause breathing difficulties for children, older adults, and persons with respiratory problems. The advisory expires at 9 p.m. MST on July 23. ADEQ recommends reducing physical activity, carpooling, telecommuting, using mass transit, and postponing gasoline-powered equipment use until late in the day. For details, visit www.azdeq.gov/forecast/phoenix or call 602-771-2300.

Source: National Weather Service.

Sources

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

  1. National Weather Service retrieved 22/07/2026 16:22

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 22/07/2026 16:22. Every claim traces to a source.