Highlights
- The South Scottsdale monitor (AQS site 040133003) recorded PM10 at 922.0 µg/m³ at 4 a.m. Sunday, Aug. 30.
- The reading crossed AirNow's Unhealthy for Sensitive Groups threshold for PM10 particulate matter.
- Ozone at the same station registered 40.0 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 South Scottsdale air quality monitor recorded PM10 particulate matter at 922.0 µg/m³ at 4 a.m. Sunday, Aug. 30, according to EPA AirNow hourly aggregate data reported by the Maricopa County Air Quality Department. The reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for PM10.
Ozone at the same station, AQS site ID 040133003, registered 40.0 ppb during the same hour.
The Arizona Department of Environmental Quality has noted that storm activity over southern Arizona can increase the likelihood of strong outflow winds and dense blowing dust, according to the ADEQ Phoenix forecast page.
Readers can check current conditions and any active advisories for the Phoenix area at AirNow's official Phoenix-area page. For health guidance specific to Maricopa County, the Maricopa County Air Quality Department issues High Pollution Advisories and offers email and text alert sign-ups. The next hourly AirNow update for this station is expected at 5 a.m.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 30/08/2026 05:22
- azdeq.gov retrieved 30/08/2026 05:22
- Maricopa County retrieved 30/08/2026 05:22
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 30/08/2026 05:22. Every claim traces to a source.
