Air quality in Massachusetts

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

LAST UPDATE (local time)

LIVE AQI CITY RANKING

Real-time Massachusetts
Most polluted city ranking

#cityUS AQI
1 Townsend

75

2 Westwood

67

3 Williamstown

65

4 Concord

62

5 Stoneham

61

6 Somerville

60

7 North Adams

59

8 Waltham

59

9 Attleboro

58

10 Greenfield

55

(local time)

SEE WORLD AQI RANKING

Air Quality contributors Sources

Data provided by

Contributors

2

Data sources

2

The profile logo of Massachusetts Department of Environmental Protection (MassDEP)The profile logo of 34 Anonymous contributorThe profile logo of PurpleAirThe profile logo of Massachusetts Department of Environmental Protection (MassDEP)

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LIVE AQI CITY RANKING

Real-time Massachusetts
Cleanest city ranking

#cityUS AQI
1 West Concord

0

2 Nantucket

10

3 Aquinnah

17

4 North Chelmsford

17

5 Chelmsford

21

6 Ayer

25

7 Amesbury

29

8 Brockton

29

9 Boxborough

30

10 Lynn

33

(local time)

SEE WORLD AQI RANKING
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Unhealthy for sensitive groups
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