Highlights
- The Central Phoenix air monitor recorded ozone at 79.0 PPB at 10 p.m. Tuesday, July 14.
- The reading crossed AirNow's 'Unhealthy for Sensitive Groups' threshold for ozone.
- Maricopa County Air Quality Department is the reporting agency; current conditions are posted at AirNow's Phoenix page.
The Central Phoenix air quality monitor recorded ozone at 79.0 PPB at 10 p.m. Tuesday, crossing AirNow's "Unhealthy for Sensitive Groups" breakpoint for ozone, according to the EPA AirNow public hourly aggregate reported by the Maricopa County Air Quality Department.
The reading came from AQS site ID 040133002, the Central Phoenix station. Other pollutants logged at the same hour: carbon monoxide at 0.2 PPM, nitrogen dioxide at 5.0 PPB, and particulate matter (PM10) at 20.0 micrograms per cubic meter.
For current forecasts and any active advisories, the Maricopa County Air Quality Department maintains a Rapid Response Notification System for email and text alerts tied to High Pollution Advisories and elevated dust readings at monitored locations across the county. Health guidance for sensitive groups should be sought from Maricopa County Air Quality directly.
The AirNow Phoenix forecast page carries the latest hourly readings and any updated advisories as conditions develop overnight.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133002 retrieved 14/07/2026 23:52
- Maricopa County retrieved 14/07/2026 23:52
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 23:52. Every claim traces to a source.
