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Air quality in New Hampshire
Air quality index (AQI) and PM2.5 air pollution in New Hampshire
LIVE AQI CITY RANKING
Real-time New Hampshire
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Effingham | 48 |
| 2 | West Lebanon | 42 |
| 3 | Concord | 38 |
| 4 | Portsmouth | 32 |
| 5 | Sutton | 29 |
| 6 | Deerfield | 25 |
| 7 | Hanover | 24 |
| 8 | Laconia | 24 |
| 9 | Littleton | 23 |
| 10 | Sandwich | 22 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
34 Contributors
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LIVE AQI CITY RANKING
Real-time New Hampshire
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Barrington | 10 |
| 2 | Conway | 10 |
| 3 | Wilton | 10 |
| 4 | Troy | 11 |
| 5 | Hooksett | 12 |
| 6 | Meredith | 12 |
| 7 | Peterborough | 16 |
| 8 | Barnstead | 17 |
| 9 | Westmoreland | 17 |
| 10 | Gilford | 18 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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News
The latest air quality news and resources.
New Hampshire air quality data attribution
34Contributors
Government Contributor
- water1998
1 station
Non-profit organization Contributor
- 30 Anonymous contributors
30 stations
30 Anonymous Contributors
Which is the most polluted city in New Hampshire?
- Effingham 48
- West Lebanon 42
- Concord 38
- Nashua 36
- North Woodstock 36
- Portsmouth 32
- Rye 30
- Sutton 29
- Deerfield 25
- Hanover 24
- Laconia 24
- Littleton 23
- Sandwich 22
- Keene 20
- Suncook 20
- Brentwood 19
- Brookline 19
- Chesterfield 19
- Dover 19
- Gilford 18
- Londonderry 18
- Barnstead 17
- Westmoreland 17
- Bedford 16
- Derry 16
- Derry Village 16
- East Merrimack 16
- Hudson 16
- Litchfield 16
- Merrimack 16
- Pelham 16
- Peterborough 16
- Salem 16
- Windham 16
- Chester 15
- Hollis 15
- Enfield 14
- Grafton 14
- Haverhill 14
- Lebanon 14
- Lyme 14
- Milford 14
- Orford 14
- Rumney 14
- Alexandria 13
- Allenstown 13
- Alstead 13
- Andover 13
- Auburn 13
- Boscawen 13
- Bow Bog 13
- Bridgewater 13
- Bristol 13
- Charlestown 13
- Claremont 13
- Contoocook 13
- Danbury 13
- East Concord 13
- Franklin 13
- Goffstown 13
- Grantham 13
- Hill 13
- Hinsdale 13
- Hopkinton 13
- Lempster 13
- Manchester 13
- New London 13
- Newbury 13
- Newport 13
- North Haverhill 13
- Pembroke 13
- Pinardville 13
- Richmond 13
- Salisbury 13
- South Hooksett 13
- Springfield 13
- Sunapee 13
- Swanzey 13
- Unity 13
- Webster 13
- West Swanzey 13
- Wilmot 13
- Winchester 13
- Woodsville 13
- Antrim 12
- Belmont 12
- Candia 12
- Canterbury 12
- Chichester 12
- Deering 12
- Dublin 12
- Epsom 12
- Fitzwilliam 12
- Francestown 12
- Gilmanton 12
- Greenfield 12
- Greenville 12
- Hampstead 12
- Harrisville 12
- Henniker 12
- Hillsborough 12
- Hooksett 12
- Jaffrey 12
- Lyndeborough 12
- Marlborough 12
- Mason 12
- Meredith 12
- Mont Vernon 12
- New Boston 12
- New Ipswich 12
- Northfield 12
- Pittsfield 12
- Plymouth 12
- Raymond 12
- Rindge 12
- Sanbornton 12
- Sandown 12
- Temple 12
- Thornton 12
- Tilton 12
- Tilton-Northfield 12
- Weare 12
- Woodstock 12
- Ashland 11
- Atkinson 11
- Epping 11
- Fremont 11
- Holderness 11
- New Durham 11
- Northumberland 11
- Northwood 11
- Nottingham 11
- Strafford 11
- Stratford 11
- Troy 11
- Whitefield 11
- Barrington 10
- Center Harbor 10
- Colebrook 10
- Conway 10
- Danville 10
- Durham 10
- Farmington 10
- Groveton 10
- Jackson 10
- Jefferson 10
- Kingston 10
- Lancaster 10
- Lee 10
- Madbury 10
- Madison 10
- Moultonborough 10
- North Conway 10
- Ossipee 10
- Plaistow 10
- Randolph 10
- Rochester 10
- Tamworth 10
- Tuftonboro 10
- Wilton 10
- Wolfeboro 10
- Berlin 9
- East Kingston 9
- Freedom 9
- Gorham 9
- Newmarket 9
- Newton 9
- Rollinsford 9
- Sanbornville 9
- Somersworth 9
- Stratham Station 9
- Wakefield 9
- Exeter 8
- Greenland 8
- Kensington 8
- Milan 8
- North Hampton 8
- Hampton 7
- Hampton Beach 7
- Hampton Falls 7
- New Castle 7
- Seabrook 7
AQI US, Metric