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

#cityUS AQI
1 Gilford

35

2 Alstead

24

3 West Lebanon

19

4 Keene

18

5 North Woodstock

17

6 Laconia

12

7 Deerfield

7

8 Grantham

6

9 Portsmouth

6

10 Londonderry

4

(local time)

SEE WORLD AQI RANKING

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LIVE AQI CITY RANKING

Real-time New Hampshire
Cleanest city ranking

#cityUS AQI
1 Jackson

0

2 Peterborough

1

3 Londonderry

4

4 Grantham

6

5 Portsmouth

6

6 Deerfield

7

7 Laconia

12

8 North Woodstock

17

9 Keene

18

10 West Lebanon

19

(local time)

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