Highlights
- The West Phoenix air monitoring station recorded ozone at 90.0 PPB at 8 p.m. on July 14, 2026.
- That reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for ozone.
- Maricopa County Air Quality Department is the reporting agency; other pollutants at the station remained at routine levels.
- Residents can track current conditions and active alerts on the AirNow Phoenix-area page.
The West Phoenix air monitoring station (AQS site ID 040130019) recorded ozone at 90.0 parts per billion at 8 p.m. Tuesday, crossing the EPA AirNow threshold designated Unhealthy for Sensitive Groups, according to the Maricopa County Air Quality Department hourly aggregate published through EPA AirNow.
Other pollutants at the station at the same hour were within routine ranges: carbon monoxide at 0.1 PPM, nitrogen dioxide at 6.0 PPB, PM10 at 16.0 micrograms per cubic meter, and PM2.5 at 7.2 micrograms per cubic meter.
Maricopa County Air Quality Department is the reporting agency for the West Phoenix station. Residents seeking health guidance or active advisories should consult the AirNow Phoenix-area forecast page for current conditions. Maricopa County also operates a Rapid Response Notification System that sends email and text alerts when High Pollution Advisories are issued at selected monitoring locations across the county.
Updated hourly readings for the West Phoenix station will be posted as conditions change.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040130019 retrieved 14/07/2026 21:52
- Maricopa County retrieved 14/07/2026 21:52
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 14/07/2026 21:52. Every claim traces to a source.
