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2009 Ozone Exceedances

(Through September 30, 2009)

Below are the exceedances of the 0.075 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.

Connecticut
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Monitor Location
Date
Concentration (ppm)
Groton
Stafford
08/18/09
08/18/09
0.083
0.079
Madison
Stratford
Westport
08/17/09
08/17/09
08/17/09
0.079
0.081
0.085
Greenwich
Stratford
Westport
08/15/09
08/15/09
08/15/09
0.079
0.084
0.082
Danbury 07/16/09 0.076
Danbury
Stafford
05/22/09
05/22/09
0.083
0.081
E. Hartford
Middletown
Stafford
04/28/09
04/28/09
04/28/09
0.076
0.081
0.082
Maine
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Monitor Location
Date
Concentration (ppm)
Acadia NP - Cadillac
Acadia NP - McFarland
Cape Elizabeth
Kennebunkport
Port Clyde
08/18/09
08/18/09
08/18/09
08/18/09
08/18/09
0.077
0.077
0.085
0.087
0.085
Kennebunkport 05/22/09 0.076
Acadia NP - Cadillac
Acadia NP - McFarland
Cape Elizabeth
Holden
Jonesport
Port Clyde
05/21/09
05/21/09
05/21/09
05/21/09
05/21/09
05/21/09
0.085
0.086
0.081
0.077
0.084
0.085
Massachusetts
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Monitor Location
Date
Concentration (ppm)
Martha's Vineyard
Truro
08/26/09
08/26/09
0.078
0.078
Chicopee 08/20/09 0.078
Blue Hill
Fairhaven
Lynn
Truro
Worcester
08/18/09
08/18/09
08/18/09
08/18/09
08/18/09
0.076
0.078
0.076
0.082
0.081
Adams
Blue Hill
Boston - Long Island
Chelmsford
Chicopee
Lynn
Newbury
Stow
Uxbridge
Ware
Worcester
05/22/09
05/22/09
05/22/09
05/22/09
05/22/09
05/22/09
05/22/09
05/22/09
05/22/09
05/22/09
05/22/09
0.083
0.081
0.080
0.076
0.080
0.079
0.078
0.082
0.083
0.079
0.082
Adams
Boston - Long Island
Newbury
Stow
Ware
Worcester
05/21/09
05/21/09
05/21/09
05/21/09
05/21/09
05/21/09
0.079
0.076
0.077
0.078
0.076
0.080
Blue Hill
Boston - Long Island
Stow
Uxbridge
Worcester
04/28/09
04/28/09
04/28/09
04/28/09
04/28/09
0.081
0.081
0.077
0.087
0.077
Amherst
Chicopee
Ware
04/27/09
04/27/09
04/27/09
0.076
0.077
0.079
Ware 04/25/09 0.077
New Hampshire
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Monitor Location
Date
Concentration (ppm)
Odiorne State Park
Portsmouth
08/18/09
08/18/09
0.084
0.077
Rye 05/22/09 0.076
Rhode Island
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Monitor Location
Date
Concentration (ppm)
E. Providence 04/28/09 0.076
Vermont
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Monitor Location
Date
Concentration (ppm)
None

Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, & Tribal Nations


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