Air quality in New Hampshire

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

LAST UPDATE (local time)

LIVE AQI CITY RANKING

Real-time New Hampshire
Most polluted city ranking

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#cityUS AQI
1 Rye

190

2 Portsmouth

40

3 North Woodstock

33

4 Brentwood

28

5 Meredith

28

6 Peterborough

23

7 Barnstead

22

8 Hampton

22

9 Gilford

21

10 Londonderry

21

(local time)

SEE WORLD AQI RANKING

Air Quality contributors Sources

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LIVE AQI CITY RANKING

Real-time New Hampshire
Cleanest city ranking

Tooltip icon
#cityUS AQI
1 Chesterfield

9

2 Westmoreland

9

3 Alstead

11

4 Keene

11

5 Laconia

17

6 Deerfield

19

7 Gilford

21

8 Londonderry

21

9 West Lebanon

21

10 Barnstead

22

(local time)

SEE WORLD AQI RANKING
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
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