2026 Ozone Exceedances
(Through April 14, 2026)
Below are the exceedances of the 0.070 parts per million (ppm) eight-hour average ozone standard, and the dates they occurred for each ozone monitor in New England. These data are preliminary, not quality assured and are subject to change.
On this page:
Connecticut
| Monitor Location | Concentration (ppm) | Date/AQI Map |
|---|---|---|
| Stafford | 0.073 | April 14, 2026 Peak Ozone AQI Map |
Maine
| Monitor Location | Concentration (ppm) | Date/AQI Map |
|---|---|---|
Massachusetts
| Monitor Location | Concentration (ppm) | Date/AQI Map |
|---|---|---|
New Hampshire
| Monitor Location | Concentration (ppm) | Date/AQI Map |
|---|---|---|
Rhode Island
| Monitor Location | Concentration (ppm) | Date/AQI Map |
|---|---|---|
Vermont
| Monitor Location | Concentration (ppm) | Date/AQI Map |
|---|---|---|