Highlights
- The Central Phoenix air quality station recorded PM10 at 704.0 micrograms per cubic meter at 4 a.m. Sunday, August 30.
- That level crosses AirNow's threshold for Unhealthy for Sensitive Groups on the PM10 scale.
- Maricopa County Air Quality Department operates the station; residents can track current conditions and any active advisories at AirNow.
The air quality monitor at the Central Phoenix station (AQS site ID 040133002), operated by the Maricopa County Air Quality Department, recorded a PM10 concentration of 704.0 micrograms per cubic meter at 4 a.m. Sunday, August 30, according to the EPA AirNow public hourly aggregate.
That reading crosses AirNow's breakpoint for the Unhealthy for Sensitive Groups category on the PM10 scale. The same hour's readings for other pollutants at the station were 0.1 PPM for carbon monoxide, 3.0 PPB for nitrogen dioxide, and 37.0 PPB for ozone.
The Maricopa County Air Quality Department issues High Pollution Advisories and dust alerts through its Rapid Response Notification System, which residents can sign up for via email or text. For current conditions, forecasts, and any active alerts covering the Phoenix area, the EPA's AirNow Phoenix page is the authoritative real-time source.
Check the AirNow Phoenix page and the Maricopa County Air Quality Department for updated readings as the morning progresses.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133002 retrieved 30/08/2026 05:21
- Maricopa County retrieved 30/08/2026 05:21
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 30/08/2026 05:21. Every claim traces to a source.
