Highlights
- The West Phoenix air monitor recorded PM10 at 215.0 micrograms per cubic meter at 2 p.m. Sunday, July 12.
- That reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for coarse particulate matter.
- Maricopa County Air Quality Department is the reporting agency; current conditions are tracked at AirNow's Phoenix page.
The West Phoenix air quality monitoring station (AQS site ID 040130019) recorded PM10 at 215.0 micrograms per cubic meter at 2 p.m. Sunday, July 12, according to EPA AirNow hourly data reported by the Maricopa County Air Quality Department. That reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for PM10.
Ozone at the same station registered 33.0 parts per billion and PM2.5 came in at 21.6 micrograms per cubic meter during the same hour.
Readers can track current conditions and any active advisories on AirNow's Phoenix-area page. For health guidance, contact the Maricopa County Air Quality Department directly. The county also operates a Rapid Response Notification System for dust and pollution alerts at specific monitoring locations across the valley.
Hourly readings are updated continuously; check AirNow for the next available reading after 3 p.m.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040130019 retrieved 12/07/2026 15:35
- Maricopa County retrieved 12/07/2026 15:35
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 12/07/2026 15:35. Every claim traces to a source.
