Highlights
- PM10 at the South Scottsdale monitoring station reached 270.0 micrograms per cubic meter at 5 p.m. Tuesday.
- The reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for PM10 particulate matter.
- Ozone at the same station measured 46.0 parts per billion 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 monitoring station recorded PM10 particulate matter at 270.0 micrograms per cubic meter at 5 p.m. Tuesday, crossing AirNow's Unhealthy for Sensitive Groups breakpoint for that pollutant, according to the EPA AirNow public hourly aggregate reported by the Maricopa County Air Quality Department.
The reading comes from AQS site ID 040133003. Ozone at the same station measured 46.0 parts per billion during the same hour.
For current forecasts and any active advisories, the AirNow Phoenix-area page carries real-time updates. For health guidance specific to Maricopa County, the Maricopa County Air Quality Department is the authoritative source.
The department's monitoring network also publishes station-level data through its air quality status map. Conditions at the South Scottsdale station will update on the next hourly aggregate cycle.
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 18:48
- Maricopa County retrieved 04/08/2026 18:48
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 18:48. Every claim traces to a source.
