Highlights
- The West Phoenix air monitoring station recorded ozone at 75.0 PPB at 7 p.m. Thursday, July 2.
- That reading crosses AirNow's 'Unhealthy for Sensitive Groups' breakpoint for ozone.
- Maricopa County Air Quality Department is the reporting agency; current Phoenix-area conditions are tracked at AirNow.
- Other pollutants at the station — CO, NO2, PM10, and PM2.5 — remained at low levels in the same hour.
The West Phoenix air monitoring station (AQS site ID 040130019) recorded ozone at 75.0 PPB at 7 p.m. Thursday, July 2, crossing AirNow's threshold for Unhealthy for Sensitive Groups, according to the Maricopa County Air Quality Department via the EPA AirNow public hourly aggregate.
Other pollutants measured at the station during the same hour remained low: carbon monoxide at 0.1 PPM, nitrogen dioxide at 4.0 PPB, PM10 at 19.0 UG/M3, and PM2.5 at 4.2 UG/M3.
Readers can check current Phoenix-area air quality conditions and any active advisories at the AirNow Phoenix page. Maricopa County also offers a Rapid Response Notification System for residents who want email or text alerts when pollution levels rise at selected monitoring locations.
For health guidance specific to this reading, consult 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 02/07/2026 20:13
- Maricopa County retrieved 02/07/2026 20:13
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 02/07/2026 20:13. Every claim traces to a source.
