Highlights

The EPA AirNow monitoring station in South Scottsdale (AQS site ID 040133003) recorded ozone at 71.0 parts per billion at 6 p.m. Saturday, Aug. 8, 2026, crossing AirNow's Unhealthy for Sensitive Groups breakpoint for ozone. The same hourly reading showed PM10 particulate matter at 50.0 micrograms per cubic meter. The data is reported by the Maricopa County Air Quality Department and aggregated through EPA AirNow's public hourly feed.

Maricopa County's hot, sunny climate creates conditions that can increase the formation of ground-level ozone, a harmful air pollutant produced when emissions from vehicles and gasoline-powered equipment interact with sunlight, according to a county public notice. The county offers email and text alerts when a High Pollution Advisory is issued or when dust pollution levels rise at selected monitoring locations.

Readers seeking the current forecast and any active advisories for the Phoenix area can check AirNow's Phoenix page directly. For health guidance specific to this reading, consult the Maricopa County Air Quality Department. The next hourly update from AQS site 040133003 is expected at 7 p.m.

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 08/08/2026 19:45
  2. Maricopa County retrieved 08/08/2026 19:45
  3. Maricopa County retrieved 08/08/2026 19:45

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 08/08/2026 19:45. Every claim traces to a source.