2026 PM2.5 Exceedances
(Through April 14, 2026)
Below are the exceedances of the 35 µg/m3 24-hour average PM2.5 standard and the dates they occurred for each continuous PM2.5 monitor in New England. Data from these monitors are not used for official purposes such as determining if an area meets the PM2.5 standard. All data are preliminary and subject to change.
On this page:
Connecticut
| Monitor Location | Concentration (µg/m3) | Date/AQI Map |
|---|---|---|
Maine
| Monitor Location | Concentration (µg/m3) | Date/AQI Map |
|---|---|---|
Massachusetts
| Monitor Location | Concentration (µg/m3) | Date/AQI Map |
|---|---|---|
New Hampshire
| Monitor Location | Concentration (µg/m3) | Date/AQI Map |
|---|---|---|
Rhode Island
| Monitor Location | Concentration (µg/m3) | Date/AQI Map |
|---|---|---|
Vermont
| Monitor Location | Concentration (µg/m3) | Date/AQI Map |
|---|---|---|