Highlights
- The West Phoenix air monitor recorded PM10 at 188.0 micrograms per cubic meter at 2 p.m. Friday, Aug. 28.
- 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 monitoring station (AQS site ID 040130019) recorded PM10 at 188.0 micrograms per cubic meter at 2 p.m. Friday, Aug. 28, 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 coarse particulate matter.
Other pollutants at the same station and hour: carbon monoxide at 0.3 PPM, nitrogen dioxide at 10.0 PPB, ozone at 29.0 PPB, and PM2.5 at 18.9 micrograms per cubic meter.
Maricopa County operates a Rapid Response Notification System that sends email and text alerts when dust pollution levels rise at selected monitoring locations across the valley, including a West 43rd Avenue station at 43rd Avenue and Broadway Road.
Readers can track current and forecast conditions for the Phoenix area at AirNow's Phoenix page. For any health guidance, consult 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 28/08/2026 15:21
- Maricopa County retrieved 28/08/2026 15:21
- Maricopa County retrieved 28/08/2026 15:21
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 28/08/2026 15:21. Every claim traces to a source.
