Highlights
- The Fountain Hills air monitor (AQS site 040139704) recorded ozone at 76.0 PPB at 10 p.m. Saturday.
- That reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for ozone.
- The reading is reported by the Maricopa County Air Quality Department via the EPA AirNow network.
- Current conditions and active alerts are available at AirNow's Phoenix-area page.
The air quality monitor in Fountain Hills recorded ozone at 76.0 parts per billion at 10 p.m. Saturday, Aug. 8, according to the EPA AirNow public hourly aggregate reported by the Maricopa County Air Quality Department. That reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for ozone.
The reading comes from AQS site 040139704, the Fountain Hills station in the Maricopa County monitoring network. The Maricopa County Air Quality Department operates the station and reports data to the EPA AirNow system.
Residents seeking current forecasts or any active advisories for the Phoenix area can check the AirNow Phoenix page or contact the Maricopa County Air Quality Department directly at 602-506-6010, per the county's Air Quality and Dust Control page. The AirNow page will reflect any updates as conditions change overnight.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040139704 retrieved 08/08/2026 23:45
- fountainhillsaz.gov retrieved 08/08/2026 23:45
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 08/08/2026 23:45. Every claim traces to a source.
