Peak AQI Ozone Maps

Peak ozone Air Quality Index (AQI) maps are based on the highest 8-hour ozone AQI measured at each ozone monitoring station. Peak ozone AQIs typically occur at different times at different monitors. Thus, peak maps do not represent a "snapshot" of air quality at any one moment. Rather, they are more like maps depicting cumulative rainfall, providing the viewer with an indication of how the air quality may have been at its worst in his or her area during the course of the day.

Click each state on the map of New England below to view the peak ozone AQI for each monitor in that state.

View peak ozone maps for other days and domains in the United States.