American Lung Association: Fairfield County has worst ozone in NYC metro area

For ozone pollution in the state, both Middlesex and Fairfield Counties maintained F grades.

Emily Knapton

Apr 23, 2025, 3:39 PM

Updated 5 hr ago

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The American Lung Association released the 2025 "State of the Air" report Wednesday.
For ozone pollution in the state, both Middlesex and Fairfield Counties maintained F grades.
Fairfield County recorded over 20 unhealthy ozone days. In Litchfield County, the number of unhealthy days for short-term particle pollution more than tripled - dragging its grade down from a B in last year's report to a D this year.
The report states that both ozone smog and daily particle pollution worsened in the New Haven-Hartford-Waterbury metro area, earning it the ranking of 38th-most polluted metro area in the nation for ozone and 70th worst for particle pollution.
The report rated 7 out of 8 counties with a grade of D or F. Windham County rated a C.