Highlights

South Scottsdale's air quality monitoring station recorded a PM10 concentration of 161.0 µg/m³ at 3 p.m. Tuesday, according to EPA AirNow hourly data reported by the Maricopa County Air Quality Department. That reading crosses AirNow's Unhealthy for Sensitive Groups breakpoint for PM10 particulate matter.

The station, identified by AQS site ID 040133003, also recorded an ozone level of 35.0 ppb during the same hour.

For current conditions, active advisories, and forecast data for the Phoenix area, the AirNow Phoenix page is updated hourly. For any health guidance tied to elevated particulate readings, Maricopa County Air Quality Department is the authoritative local source.

Sources

Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.

  1. 040133003 retrieved 04/08/2026 16:48

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 16:48. Every claim traces to a source.