Highlights
- PM10 at the South Scottsdale monitoring station reached 189.0 µg/m³ at 10 p.m. Saturday, crossing the unhealthy-for-sensitive-groups breakpoint.
- Ozone at the same station registered 54.0 parts per billion during the same hour.
- Maricopa County Air Quality Department operates the station; current conditions and active alerts are posted at AirNow's Phoenix-area page.
The South Scottsdale air quality monitoring station (AQS site ID 040133003) recorded a PM10 reading of 189.0 µg/m³ at 10 p.m. Saturday, July 11, crossing AirNow's unhealthy-for-sensitive-groups breakpoint for coarse particulate matter. The reading was reported through the EPA AirNow public hourly aggregate and attributed to the Maricopa County Air Quality Department.
Ozone at the same station during the same hour measured 54.0 parts per billion.
For current conditions, forecast, and any active advisories, the AirNow Phoenix-area page is updated hourly. Health guidance for elevated PM10 conditions is available directly from Maricopa County Air Quality, which also operates a sign-up service for High Pollution Advisory alerts and dust-level notifications at selected monitoring locations across the county.
Readings are updated each hour; check AirNow for the next reported observation.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 11/07/2026 23:22
- Maricopa County retrieved 11/07/2026 23:22
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 11/07/2026 23:22. Every claim traces to a source.
