The Current Air Quality Index reflects the air pollutant (either PM2.5, PM10, or Ozone) with the highest reading in the monitoring network. It is updated hourly. 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 for the air pollutants measured at that site.
Fine Particulate Matter (PM2.5) is the dominant air pollutant in the current hour.
Updated 2020-09-28 11:35:00 pm
Click a location on the map for more information.
Fine Particulate Matter (PM2.5) monitoring stations (AQI value)
Other Pollutant Monitoring Stations