Highlights
- The Fountain Hills air quality monitor recorded ozone at 86.0 PPB at midnight on July 4, 2026.
- That reading crossed AirNow's 'Unhealthy for Sensitive Groups' breakpoint for ozone.
- The Maricopa County Air Quality Department operates the station; current conditions and forecasts are available via AirNow.
- Residents in sensitive groups should check the AirNow Phoenix-area page before spending time outdoors.
The Maricopa County Air Quality Department monitoring station in Fountain Hills recorded ozone at 86.0 parts per billion at midnight on July 4, 2026, crossing AirNow's threshold for the 'Unhealthy for Sensitive Groups' category.
The reading was logged at AQS site ID 040139704 and reported through the EPA AirNow public hourly aggregate feed. Ozone at that level is considered a concern for children, older adults, and people with respiratory or cardiovascular conditions.
The Town of Fountain Hills coordinates with the EPA and area cities on air quality and dust standards. Maricopa County issues High Pollution Advisories and offers email and text alerts when pollution levels rise at monitored locations.
Current readings, forecasts, and any active advisories for the Phoenix area are available at the AirNow Phoenix page. Residents with health concerns should consult Maricopa County Air Quality guidance 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 04/07/2026 01:27
- Maricopa County retrieved 04/07/2026 01:27
- fountainhillsaz.gov retrieved 04/07/2026 01:27
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 04/07/2026 01:27. Every claim traces to a source.
