Air quality in Connecticut

Air quality index (AQI) and PM2.5 air pollution in Connecticut

LAST UPDATE (local time)

LIVE AQI CITY RANKING

Real-time Connecticut
Most polluted city ranking

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#cityUS AQI
1 Winsted

61

2 Somers

54

3 Naugatuck

52

4 Hamden

51

5 Trumbull

47

6 East Haven

46

7 Middlebury

45

8 South Coventry

45

9 Oxford

44

10 Branford

41

(local time)

SEE WORLD AQI RANKING

Air Quality contributors Sources

Data provided by

14 Anonymous contributor

anonymous

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LIVE AQI CITY RANKING

Real-time Connecticut
Cleanest city ranking

Tooltip icon
#cityUS AQI
1 Hartford

27

2 Danbury

29

3 Groton

29

4 New Haven

29

5 East Hartford

30

6 Sherman

30

7 West Cornwall

31

8 West Hartford

32

9 Bridgeport

33

10 Waterbury

35

(local time)

SEE WORLD AQI RANKING
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Connecticut air quality data sources

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