Highlights
- The South Scottsdale monitoring station (AQS 040133003) recorded ozone at 73.0 PPB at 8 p.m. on July 2.
- The reading crossed AirNow's 'Unhealthy for Sensitive Groups' breakpoint for ozone.
- PM10 particulate matter at the same station read 11.0 micrograms per cubic meter at the same hour.
- Maricopa County Air Quality Department is the reporting agency; current forecasts are available via AirNow's Phoenix-area page.
The South Scottsdale air quality monitoring station (AQS site ID 040133003) recorded ozone at 73.0 parts per billion at 8 p.m. Wednesday, July 2, crossing AirNow's threshold for the Unhealthy for Sensitive Groups category, according to EPA AirNow hourly aggregate data reported by the Maricopa County Air Quality Department.
The same station recorded PM10 particulate matter at 11.0 micrograms per cubic meter during the same hour.
For current forecasts and any active advisories, the Maricopa County Air Quality Department offers email and text alerts when a High Pollution Advisory is issued; sign-up is available at maricopa.gov/1244/Air-Quality. The AirNow Phoenix-area page carries the latest hourly readings and next-day forecast.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 02/07/2026 21:13
- Maricopa County retrieved 02/07/2026 21:13
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 02/07/2026 21:13. Every claim traces to a source.
