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EPA Region 1
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2022 PM2.5 Exceedances

(Through December 31, 2022)

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.

  • Connecticut
  • Maine
  • Massachusetts
  • New Hampshire
  • Rhode Island
  • Vermont
Connecticut
Monitor Location Date Concentration
(µg/m3)
AQI Map
Bridgeport December 30, 2022 37.2 PM 2.5 AQI
Maine
Monitor Location Date Concentration
(µg/m3)
AQI Map
None      
Massachusetts
Monitor Location Date Concentration
(µg/m3)
AQI Map
Greenfield December 31, 2022 38.4 PM 2.5 AQI
New Hampshire
Monitor Location Date Concentration
(µg/m3)
AQI Map
None      
Rhode Island
Monitor Location Date Concentration
(µg/m3)
AQI Map
None      
Vermont
Monitor Location Date Concentration
(µg/m3)
AQI Map
None      

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Last updated on January 18, 2023