Highlights
- The South Scottsdale station (AQS 040133003) recorded PM10 at 242.0 UG/M3 at 9 a.m. Thursday, Sept. 10.
- That reading crosses AirNow's Unhealthy for Sensitive Groups breakpoint for PM10 particulate matter.
- Ozone at the same station registered 38.0 PPB at the same hour.
- Maricopa County Air Quality Department is the reporting agency; current conditions are tracked at AirNow's Phoenix-area page.
The South Scottsdale air monitoring station logged a PM10 reading of 242.0 UG/M3 at 9 a.m. Thursday, Sept. 10, crossing the AirNow threshold designated Unhealthy for Sensitive Groups for coarse particulate matter, according to the EPA AirNow public hourly aggregate reported by the Maricopa County Air Quality Department.
The station, identified by AQS site ID 040133003, simultaneously recorded ozone at 38.0 PPB during the same hour. The Maricopa County Air Quality Department is the reporting agency for the station.
Readers seeking current forecasts or active advisories for the Phoenix area can monitor conditions through AirNow's Phoenix-area page. For health guidance tied to elevated particulate readings, the Maricopa County Air Quality Department is the authoritative local source.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 10/09/2026 10:54
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 10/09/2026 10:54. Every claim traces to a source.
