Highlights
- The South Scottsdale air monitor logged PM10 at 223.0 µg/m³ at 1 a.m. on June 18, 2026.
- That reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for coarse particulate matter.
- Ozone at the same station read 36.0 ppb during the same hour.
- Maricopa County Air Quality Department is the reporting agency; current conditions are available on AirNow's Phoenix-area page.
The air quality monitor at South Scottsdale recorded a PM10 concentration of 223.0 µg/m³ at 1 a.m. Thursday, according to an hourly aggregate published by the EPA's AirNow platform and reported by the Maricopa County Air Quality Department. That reading crossed AirNow's Unhealthy for Sensitive Groups breakpoint for coarse particulate matter.
The same station (AQS site ID 040133003) recorded ozone at 36.0 ppb during the same hour.
The Maricopa County Air Quality Department operates the monitoring network and issues High Pollution Advisories when conditions warrant. Residents can sign up for email and text alerts through the department's website. Current readings, forecasts, and any active advisories for the Phoenix area are available on AirNow's Phoenix page.
Check AirNow for updated hourly readings as conditions develop through the morning.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- 040133003 retrieved 18/06/2026 02:56
- Maricopa County retrieved 18/06/2026 02:56
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 18/06/2026 02:56. Every claim traces to a source.
