Highlights
- The Central Phoenix air quality station logged PM10 at 162.0 micrograms per cubic meter at 9 p.m. Sunday.
- That reading crosses AirNow's Unhealthy for Sensitive Groups threshold for PM10 particulate matter.
- Ozone at the same station measured 55.0 ppb; CO and NO2 remained at low levels.
- Maricopa County Air Quality Department operates the station; current conditions and alerts are at AirNow's Phoenix page.
The Maricopa County Air Quality Department's Central Phoenix monitoring station (AQS site ID 040133002) recorded PM10 particulate matter at 162.0 micrograms per cubic meter at 9 p.m. Sunday, July 12, crossing AirNow's Unhealthy for Sensitive Groups breakpoint for that pollutant.
Other readings at the same station and hour: ozone at 55.0 parts per billion, nitrogen dioxide at 2.0 parts per billion, and carbon monoxide at 0.2 parts per million. The source data does not characterize those readings as elevated.
The Maricopa County Air Quality Department administers the county's monitoring network and issues High Pollution Advisories when conditions warrant. Residents can sign up for email and text alerts through the county's air quality page or report a dust control concern through the Rapid Response Notification System. Current forecast and any active advisories for the Phoenix area are posted at AirNow.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133002 retrieved 12/07/2026 22:35
- Maricopa County retrieved 12/07/2026 22:35
- Maricopa County retrieved 12/07/2026 22:35
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 22:35. Every claim traces to a source.
