Highlights
- The West Phoenix air monitoring station recorded ozone at 80.0 PPB at 10 p.m. on July 3, 2026.
- That reading crosses AirNow's 'Unhealthy for Sensitive Groups' breakpoint for ozone.
- Maricopa County Air Quality Department is the reporting agency; current conditions are tracked at AirNow's Phoenix page.
The West Phoenix air monitoring station (AQS site ID 040130019) recorded ozone at 80.0 PPB during the 10 p.m. hour on July 3, 2026, according to EPA AirNow hourly aggregate data reported by the Maricopa County Air Quality Department. That reading crosses AirNow's threshold for the "Unhealthy for Sensitive Groups" category for ozone.
Other pollutants recorded at the same station and hour: carbon monoxide at 0.1 PPM, nitrogen dioxide at 3.0 PPB, PM10 at 11.0 micrograms per cubic meter, and PM2.5 at 3.0 micrograms per cubic meter.
Readers can check the current forecast and any active alerts for the Phoenix area at AirNow's Phoenix page. For health guidance specific to Maricopa County, contact the 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.
- 040130019 retrieved 03/07/2026 23:27
- Maricopa County retrieved 03/07/2026 23:27
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 03/07/2026 23:27. Every claim traces to a source.
