Highlights
- The Central Phoenix monitoring station recorded PM10 at 192.0 micrograms per cubic meter at 6 a.m. Monday.
- That level crosses AirNow's 'Unhealthy for Sensitive Groups' breakpoint for particulate matter.
- Maricopa County Air Quality Department operates the station; current conditions and forecasts are posted at AirNow's Phoenix page.
The air quality monitor at Central Phoenix (AQS site 040133002), operated by the Maricopa County Air Quality Department, recorded PM10 at 192.0 micrograms per cubic meter at 6 a.m. Monday, July 13, a level that crosses AirNow's threshold for the 'Unhealthy for Sensitive Groups' category for coarse particulate matter.
Other pollutants logged at the same hour were within normal ranges: carbon monoxide at 0.1 parts per million, nitrogen dioxide at 6.0 parts per billion, and ozone at 42.0 parts per billion.
The reading was reported through the EPA AirNow public hourly aggregate feed. Maricopa County also operates a Rapid Response Notification System that sends email and text alerts when pollution levels rise at selected monitoring locations across the county.
For current conditions, active alerts, and the day's forecast, the AirNow Phoenix area page is updated hourly. Health guidance for sensitive groups, including those with respiratory or cardiovascular conditions, is available through Maricopa County Air Quality.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133002 retrieved 13/07/2026 07:35
- Maricopa County retrieved 13/07/2026 07:35
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 13/07/2026 07:35. Every claim traces to a source.
