Highlights
- The Fountain Hills air quality station recorded ozone at 76.0 parts per billion at 9 p.m. Tuesday, July 14.
- That reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for ozone, according to Maricopa County Air Quality Department data.
- Residents can check current readings and any active advisories at AirNow's Phoenix-area page for updated forecasts.
The Maricopa County Air Quality Department monitoring station in Fountain Hills recorded ozone at 76.0 parts per billion at 9 p.m. Tuesday, July 14, crossing AirNow's Unhealthy for Sensitive Groups breakpoint for ozone.
The reading comes from AQS site 040139704, the county's Fountain Hills station, as reported through the EPA AirNow public hourly aggregate feed.
For current readings, active advisories, and forecast conditions, the AirNow Phoenix-area page is the authoritative source. Any health guidance specific to this reading should be sought from Maricopa County Air Quality Department directly.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040139704 retrieved 14/07/2026 22:52
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 14/07/2026 22:52. Every claim traces to a source.
