Air Quality Index Graph

This graph indicates the AQI for a specific monitor and pollutant. Select any site, date, parameter and time frame. The color of the bars indicates the AQI level. The AQI for each pollutant is calculated using a standard averaging interval: PM 24-hr; O3 8-hr; CO, SO2 and NO2 1-hr.

Please wait while page loads. Data not Quality Assured. For National Ambient Air Quality Standards, click here. For more information or to obtain historical data, please contact us.