Highlights
- South Scottsdale's air quality station logged ozone at 77.0 PPB at 11 p.m. on July 30, 2026.
- The reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for ozone.
- PM10 particulate matter at the same station measured 23.0 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 77.0 parts per billion at 11 p.m. on Wednesday, July 30, crossing AirNow's Unhealthy for Sensitive Groups breakpoint for ozone. The reading was reported by the Maricopa County Air Quality Department through the EPA AirNow public hourly aggregate.
PM10 particulate matter at the same station measured 23.0 micrograms per cubic meter during the same hour.
Maricopa County's air quality program operates a network of monitoring stations across the region. The county offers email and text alerts when a High Pollution Advisory is issued or when dust pollution levels rise at selected monitoring locations, according to the department's website.
Readers seeking the current forecast or any active advisories for the Phoenix area can check AirNow's Phoenix page directly. For health guidance specific to ozone conditions, the 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.
- 040133003 retrieved 31/07/2026 00:59
- Maricopa County retrieved 31/07/2026 00:59
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 31/07/2026 00:59. Every claim traces to a source.
