Notice: The AirNow Data Management Center will be performing routine system maintenance from 4:30 p.m. - 11:30 p.m. local time on Wednesday, May 27. During this time, air quality data will not update or will be delayed until maintenance is completed.
The Current Air. Quality Index (above) applies to the entire county. It reflects the air pollutant with the highest reading in the monitoring network. The map below provides information for each monitoring site in the network. Clicking on a specific site will take you to a new window where you can access current day and five-day hourly AQI histories.
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Fine Particulate Matter (PM2.5) is the dominant air pollutant in the current hour.
Updated 2020-05-30 05:35:00 am
Click a location on the map for more information.
Fine Particulate Matter (PM2.5) monitoring stations (AQI value)
Other Pollutant Monitoring Stations