Highlights
- The Fountain Hills air quality monitor recorded ozone at 72.0 parts per billion at midnight June 11.
- The reading crossed AirNow's unhealthy-for-sensitive-groups breakpoint for ozone, according to Maricopa County Air Quality Department data.
- Residents can track current conditions and active alerts on the AirNow Phoenix-area page.
The air quality monitor in Fountain Hills recorded ozone at 72.0 parts per billion at midnight Wednesday, June 11, crossing the AirNow threshold designated unhealthy for sensitive groups, according to data reported by the Maricopa County Air Quality Department.
The reading comes from AQS site 040139704, the EPA AirNow station serving Fountain Hills. The Maricopa County Air Quality Department is the reporting agency for the station.
Residents, particularly those in sensitive groups, can check current conditions, forecasts, and any active advisories on the AirNow Phoenix-area page. For guidance specific to Maricopa County air quality programs, the county maintains a dedicated resource at maricopa.gov/Air-Quality.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040139704 retrieved 11/06/2026 01:18
- Maricopa County retrieved 11/06/2026 01:18
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 11/06/2026 01:18. Every claim traces to a source.
