Highlights
- The South Scottsdale air monitor recorded PM10 at 627.0 micrograms per cubic meter at 4 a.m. Monday, Aug. 10.
- The reading crossed AirNow's unhealthy-for-sensitive-groups breakpoint for PM10 particulate matter.
- Ozone at the same station registered 56.0 parts per billion in the same hour.
- Maricopa County Air Quality Department is the reporting agency; current conditions are available at AirNow's Phoenix-area page.
The South Scottsdale air quality monitor operated by the Maricopa County Air Quality Department recorded PM10 particulate matter at 627.0 micrograms per cubic meter at 4 a.m. Monday, Aug. 10, according to EPA AirNow hourly aggregate data. The reading crossed AirNow's unhealthy-for-sensitive-groups breakpoint for PM10.
The same station (AQS site ID 040133003) logged ozone at 56.0 parts per billion during the same hour.
For current conditions, active advisories, and forecast data, the AirNow Phoenix-area page is updated hourly. Maricopa County Air Quality Department is the authoritative source for any guidance on local health advisories; residents can sign up for High Pollution Advisory alerts and dust-event notifications through the county's air quality portal.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 10/08/2026 05:45
- Maricopa County retrieved 10/08/2026 05:45
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 10/08/2026 05:45. Every claim traces to a source.
