Highlights
- The Fountain Hills air quality station recorded ozone at 72.0 PPB at 8 p.m. Wednesday, July 16.
- The reading crossed AirNow's unhealthy-for-sensitive-groups breakpoint for ozone.
- The Maricopa County Air Quality Department operates the station; current conditions are at AirNow's Phoenix-area page.
The Maricopa County Air Quality Department monitoring station in Fountain Hills recorded ozone at 72.0 parts per billion at 8 p.m. Wednesday, July 16, according to EPA AirNow hourly data. That reading crossed AirNow's unhealthy-for-sensitive-groups breakpoint for ozone.
The station carries AQS site ID 040139704. Residents seeking current conditions, forecasts, or any active advisories for the Phoenix area can check the AirNow Phoenix page. For guidance specific to Maricopa County, the Air Quality Department can be reached through its official site or via the Town of Fountain Hills air quality page, which directs residents to county resources.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040139704 retrieved 16/07/2026 21:19
- fountainhillsaz.gov retrieved 16/07/2026 21:19
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 16/07/2026 21:19. Every claim traces to a source.
