2023 Ozone Exceedances
(Through May 12, 2023)
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.
Monitor Location | Date | Concentration (ppm) | AQI Map |
---|---|---|---|
Madison | May 12, 2023 | 0.075 | Peak Ozone AQI |
Abington | April 14, 2023 | 0.074 | Peak Ozone AQI |
Cornwall | April 14, 2023 | 0.082 | |
Danbury | April 14, 2023 | 0.085 | |
East Hartford | April 14, 2023 | 0.084 | |
Greenwich | April 14, 2023 | 0.076 | |
Groton | April 14, 2023 | 0.073 | |
Madison | April 14, 2023 | 0.075 | |
Middletown | April 14, 2023 | 0.082 | |
Stafford | April 14, 2023 | 0.088 | |
Stratford | April 14, 2023 | 0.072 | |
Westport | April 14, 2023 | 0.078 | |
Greenwich | April 13, 2023 | 0.072 | Peak Ozone AQI |
Groton | April 13, 2023 | 0.076 | |
Madison | April 13, 2023 | 0.082 | |
Middletown | April 13, 2023 | 0.075 | |
Stafford | April 13, 2023 | 0.071 | |
Stratford | April 13, 2023 | 0.077 | |
Westport | April 13, 2023 | 0.079 |
Monitor Location | Date | Concentration (ppm) | AQI Map |
---|---|---|---|
None |
Monitor Location | Date | Concentration (ppm) | AQI Map |
---|---|---|---|
Truro | May 12, 2023 | 0.073 | Peak Ozone AQI |
Brockton | April 14, 2023 | 0.072 | Peak Ozone AQI |
Chicopee | April 14, 2023 | 0.081 | |
Chelmsford | April 14, 2023 | 0.071 | |
East Milton | April 14, 2023 | 0.076 | |
Fall River | April 14, 2023 | 0.076 | |
Uxbridge | April 14, 2023 | 0.071 | |
Ware | April 14, 2023 | 0.074 | |
East Milton | April 13, 2023 | 0.071 | Peak Ozone AQI |
Fairhaven | April 13, 2023 | 0.076 | |
Fall River | April 13, 2023 | 0.080 | |
Martha's Vineyard | April 13, 2023 | 0.073 | |
Truro | April 13, 2023 | 0.082 |
Monitor Location | Date | Concentration (ppm) | AQI Map |
---|---|---|---|
Summit | April 15, 2023 | 0.081 | Peak Ozone AQI |
Miller State Park | April 14, 2023 | 0.074 | Peak Ozone AQI |
Nashua | April 14, 2023 | 0.074 | |
Summit | April 14, 2023 | 0.071 |
Monitor Location | Date | Concentration (ppm) | AQI Map |
---|---|---|---|
Narragansett | May 12, 2023 | 0.072 | Peak Ozone AQI |
East Providence | April 14, 2023 | 0.077 | Peak Ozone AQI |
Narragansett | April 14, 2023 | 0.073 | |
West Greenwich | April 14, 2023 | 0.078 | |
East Providence | April 13, 2023 | 0.075 | Peak Ozone AQI |
Narragansett | April 13, 2023 | 0.081 | |
West Greenwich | April 13, 2023 | 0.078 |
Monitor Location | Date | Concentration (ppm) | AQI Map |
---|---|---|---|
Underhill | April 13, 2023 | 0.071 | Peak Ozone AQI |