Current Estimated Ozone AQI

The AQI for ozone is based on the 8-hour average ozone concentration. This data is collected hourly from the Air Quality Monitoring network. In real-time, the full eight hours of data are not available so a method was devised to estimate the 8-hour AQI from the hourly ozone data using a mid-point approach. Click for more details on this calculation.

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

Since atmospheric conditions are variable, the actual peak AQI can be either higher or lower than the estimated AQI. Yesterday's actual peak ozone AQI values »