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2009 PM 2.5 Exceedances
(Through September 28, 2009)
Below are the exceedances of the 35.5 ug/m3 24-hour average PM 2.5 standard and the dates they occurred for each continuous PM 2.5 monitor in New England. Data from these monitors are not used for official purposes such as determining if an areas meets the PM 2.5 standard. All data are preliminary and subject to change.
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Monitor Location |
Date |
Concentration (ug/m3) |
|
| Bridgeport | 08/17/09 | 36.7 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Bridgeport | 04/26/09 | 37.1 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Bridgeport | 03/15/09 | 46.4 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Bridgeport | 03/07/09 | 39.7 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Bridgeport | 02/11/09 | 39.3 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Bridgeport Danbury New Haven |
02/07/09 02/07/09 02/07/09 |
45.1 40.5 35.5 |
PM 2.5 AQI Loop and PM 2.5 AQI |
| Bridgeport New Haven |
01/23/09 01/23/09 |
44.7 35.6 |
PM 2.5 AQI Loop and PM 2.5 AQI |
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Monitor Location |
Date |
Concentration (ug/m3) |
|
| Lewiston | 08/17/09 | 40.7 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Bangor Portland |
02/02/09 02/02/09 |
35.7 38.0 |
PM 2.5 AQI Loop and PM 2.5 AQI |
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Monitor Location |
Date |
Concentration (ug/m3) |
|
| Springfield | 08/17/09 | 37.0 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Springfield | 02/07/09 | 38.1 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Springfield | 01/30/09 | 39.2 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Springfield | 01/23/09 | 36.4 | PM 2.5 AQI Loop and PM 2.5 AQI |
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Monitor Location |
Date |
Concentration (ug/m3) |
|
| Keene | 02/07/09 | 44.6 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Keene | 01/26/09 | 51.4 | PM 2.5 AQI Loop and PM 2.5 AQI |
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Monitor Location |
Date |
Concentration (ug/m3) |
|
| None | |||
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Monitor Location |
Date |
Concentration (ug/m3) |
|
| Rutland | 03/18/09 | 36.8 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Rutland | 03/06/09 | 38.0 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Rutland | 02/26/09 | 41.1 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Rutland | 02/11/09 | 42.9 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Rutland | 02/07/09 | 52.7 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Rutland | 02/02/09 | 36.9 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Rutland | 01/19/09 | 37.7 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Rutland | 01/16/09 | 40.7 | PM 2.5 AQI Loop and PM 2.5 AQI |
| Rutland | 01/12/09 | 37.5 | PM 2.5 AQI Loop and PM 2.5 AQI |