Highlights
- The South Scottsdale air quality station recorded PM10 at 193.0 UG/M3 at 1 p.m. on Aug. 28, crossing the unhealthy-for-sensitive-groups breakpoint.
- The reading comes from AQS site 040133003, operated by the Maricopa County Air Quality Department and reported through EPA AirNow.
- Ozone at the same station and hour measured 23.0 PPB, within normal range.
- Readers can track current conditions and any active alerts on the AirNow Phoenix-area page.
The South Scottsdale air quality monitor recorded a PM10 concentration of 193.0 micrograms per cubic meter at 1 p.m. Friday, Aug. 28, crossing AirNow's threshold for the "Unhealthy for Sensitive Groups" category, according to the EPA AirNow public hourly aggregate reported by the Maricopa County Air Quality Department.
The reading comes from AQS site 040133003, the department's South Scottsdale monitoring station. Ozone at the same station during the same hour measured 23.0 parts per billion.
Maricopa County Air Quality Department is the reporting agency for the station. Residents seeking health guidance or active advisories should consult the county directly at maricopa.gov/1244/Air-Quality or check the AirNow Phoenix-area forecast page for current conditions and any issued alerts.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 28/08/2026 14:22
- Maricopa County retrieved 28/08/2026 14:22
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 28/08/2026 14:22. Every claim traces to a source.
