The Arizona Department of Environmental Quality issued an Ozone High Pollution Advisory for the Phoenix Metro Area on May 11 at 9:17 a.m. MST. The alert remains in effect through Tuesday, May 12 at 9 p.m. 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 people with respiratory problems. The ADEQ recommends reducing physical activity, carpooling, telecommuting, or using mass transit. Gasoline-powered equipment use should be reduced or delayed until late in the day. For more information, visit www.azdeq.gov/forecast/phoenix or call 602-771-2300.
Source: National Weather Service.
Sources
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- National Weather Service retrieved 11/05/2026 16:21
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 11/05/2026 16:21. Every claim traces to a source.
