Highlights
- The South Scottsdale air monitor recorded PM10 at 185.0 µg/m³ at 10 p.m. Tuesday, August 4.
- That reading crosses AirNow's Unhealthy for Sensitive Groups breakpoint for coarse particulate matter.
- Ozone at the same station measured 57.0 ppb during the same hour.
- Maricopa County Air Quality Department is the reporting agency; current conditions are available via AirNow's Phoenix-area page.
The South Scottsdale air quality monitor recorded PM10 at 185.0 µg/m³ at 10 p.m. Tuesday, August 4, crossing AirNow's Unhealthy for Sensitive Groups threshold for coarse particulate matter, according to the EPA AirNow public hourly aggregate reported by the Maricopa County Air Quality Department.
The reading came from AQS site 040133003 in South Scottsdale. Ozone at the same station measured 57.0 ppb during the same hour.
For current forecasts and any active advisories, the AirNow Phoenix-area page is updated hourly. Maricopa County also maintains a real-time air quality status map and offers email and text alerts when a High Pollution Advisory is issued or when dust levels rise at selected monitoring locations.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 04/08/2026 23:48
- Maricopa County retrieved 04/08/2026 23:48
- Maricopa County retrieved 04/08/2026 23:48
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 04/08/2026 23:48. Every claim traces to a source.
