Highlights
- The South Scottsdale station (AQS 040133003) logged PM10 at 434.0 µg/m³ at 4 a.m. on July 13, 2026.
- That reading exceeds AirNow's unhealthy-for-sensitive-groups breakpoint for particulate matter.
- Ozone at the same station registered 48.0 PPB during the same hour.
- Maricopa County Air Quality Department is the reporting agency; current conditions and active alerts are posted at AirNow.
The South Scottsdale air monitoring station recorded PM10 particulate matter at 434.0 µg/m³ at 4 a.m. Monday, July 13, according to hourly data published by the EPA AirNow network and reported by the Maricopa County Air Quality Department.
That reading crosses AirNow's unhealthy-for-sensitive-groups breakpoint for PM10. The same station logged ozone at 48.0 PPB during the same hour.
The data originates from AQS site ID 040133003 in South Scottsdale and is aggregated through EPA AirNow's public hourly feed.
For current conditions, forecast, and any active advisories for the Phoenix area, the AirNow Phoenix page is updated hourly. Residents seeking guidance from the county's air quality authority can reach the Maricopa County Air Quality Department directly. Updated readings are expected on the hour.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 13/07/2026 05:35
- Maricopa County retrieved 13/07/2026 05:35
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 13/07/2026 05:35. Every claim traces to a source.
