Highlights

AIR QUALITY ALERT: The Arizona Department of Environmental Quality has extended an Ozone High Pollution Advisory for the Phoenix metro area through 9 p.m. Wednesday, Aug. 26, the National Weather Service Phoenix office said in an alert issued at 9:17 a.m. Tuesday.

Forecast weather conditions combined with existing ozone levels are expected to produce local maximum 8-hour ozone concentrations that pose a health risk, according to the NWS. The agency notes that adverse health effects increase as air quality deteriorates.

Ozone can cause breathing difficulties for children, older adults, and people with respiratory problems. A decrease in physical activity is recommended for those groups.

Residents are urged to carpool, telecommute, or use mass transit. Use of gasoline-powered equipment should be reduced or shifted to later in the day.

Full advisory details are available at azdeq.gov/forecast/phoenix or by calling ADEQ at 602-771-2300. The advisory expires at 9 p.m. Wednesday.

Sources

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  1. api.weather.gov retrieved 25/08/2026 16:19

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 25/08/2026 16:19. Every claim traces to a source.