Highlights
- The South Scottsdale air quality station logged PM10 at 492.0 UG/M3 at 5 a.m. on Sept. 15.
- The reading crossed AirNow's unhealthy-for-sensitive-groups breakpoint for PM10 particulate matter.
- Ozone at the same station measured 33.0 PPB during the same hour.
- Maricopa County Air Quality Department is the reporting agency; current conditions are tracked at AirNow's Phoenix-area page.
The Maricopa County Air Quality Department monitoring station in South Scottsdale recorded PM10 particulate matter at 492.0 UG/M3 at 5 a.m. Tuesday, Sept. 15, according to EPA AirNow hourly aggregate data. The reading crossed AirNow's unhealthy-for-sensitive-groups breakpoint for PM10.
Ozone at the same station (AQS site ID 040133003) measured 33.0 PPB during the same hour.
For current conditions, active advisories, and forecast data, the AirNow Phoenix-area page is updated hourly. Readers seeking health guidance should consult the Maricopa County Air Quality Department directly. The county also offers email and text alerts when a High Pollution Advisory is issued or when dust pollution levels rise at selected monitoring locations.
Updated hourly readings for the South Scottsdale station are available through the Maricopa County Air Quality status map.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 15/09/2026 06:23
- Maricopa County retrieved 15/09/2026 06:23
- Maricopa County retrieved 15/09/2026 06:23
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 15/09/2026 06:23. Every claim traces to a source.
