Highlights
- The Central Phoenix air monitor recorded PM10 at 179.0 micrograms per cubic meter at 10 p.m. Saturday, July 11.
- That reading crosses AirNow's Unhealthy for Sensitive Groups breakpoint for PM10 particulate matter.
- Maricopa County Air Quality Department operates the station; residents can track current conditions and active alerts at AirNow's Phoenix page.
- Maricopa County's Rapid Response Notification System allows residents to sign up for High Pollution Advisory alerts by email or text.
The air quality monitor at Central Phoenix recorded PM10 particulate matter at 179.0 micrograms per cubic meter at 10 p.m. Saturday, July 11, according to EPA AirNow hourly aggregate data reported by the Maricopa County Air Quality Department. That reading crosses AirNow's Unhealthy for Sensitive Groups breakpoint for PM10.
The same station recorded carbon monoxide at 0.2 parts per million, nitrogen dioxide at 2.0 parts per billion, and ozone at 49.0 parts per billion during the same hour.
The station's AQS site ID is 040133002. Current conditions, forecasts, and any active alerts for the Phoenix area are available at AirNow's Phoenix page.
Maricopa County's Rapid Response Notification System allows residents to sign up for email or text alerts when a High Pollution Advisory is issued or when dust pollution levels rise at selected monitoring locations. For health guidance specific to this reading, the county's Air Quality Department is the authoritative source.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133002 retrieved 11/07/2026 23:22
- Maricopa County retrieved 11/07/2026 23:22
- Maricopa County retrieved 11/07/2026 23:22
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 11/07/2026 23:22. Every claim traces to a source.
