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Air Quality Index


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Air Quality Index
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 8 Hr Ozone in New England during 2009: Information which gives the date, location, and measured concentration for each time pollutant levels went above the 2008 8-hour ozone standard (0.075 ppm).

 24 Hr PM 2.5 in New England during 2009: Information which gives the date, location, and measured concentration for each time pollutant levels went above 2006 24-hour PM 2.5 standard (35 ug/m3).

**This continuous PM 2.5 data is NOT used for official purposes***

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


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