2024 PM2.5 Exceedances
(Through November 17, 2024)
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 | Date/AQI Map | Concentration (µg/m3) |
|---|---|---|
Maine
| Monitor Location | Date/AQI Map | Concentration (µg/m3) |
|---|---|---|
Massachusetts
| Monitor Location | Date/AQI Map | Concentration (µg/m3) |
|---|---|---|
| Lynn | November 10, 2024 | 243.2 |
| Lynn | November 9, 2024 PM 2.5 AQI Map | 321.9 |
| Lynn | November 8, 2024 PM 2.5 AQI Map | 63.5 |
| Lynn | October 29, 2024 PM 2.5 AQI Map | 71.6 |
New Hampshire
| Monitor Location | Date/AQI Map | Concentration (µg/m3) |
|---|---|---|
Rhode Island
| Monitor Location | Date/AQI Map | Concentration (µg/m3) |
|---|---|---|
Vermont
| Monitor Location | Date/AQI Map | Concentration (µg/m3) |
|---|---|---|