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Air quality in New Hampshire
Air quality index (AQI) and PM2.5 air pollution in New Hampshire
AIR QUALITY DATA CONTRIBUTORS
34 Contributors
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LIVE AQI CITY RANKING
Real-time New Hampshire
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Troy | 7 |
| 2 | Barrington | 8 |
| 3 | Wilton | 10 |
| 4 | Conway | 11 |
| 5 | Hooksett | 11 |
| 6 | Meredith | 11 |
| 7 | Peterborough | 13 |
| 8 | Barnstead | 15 |
| 9 | Chesterfield | 16 |
| 10 | Brentwood | 17 |
(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?
- West Lebanon 41
- Nashua 36
- Concord 34
- Sandwich 33
- North Woodstock 29
- Rye 29
- Littleton 26
- Deerfield 24
- Effingham 23
- Sutton 22
- Hinsdale 21
- Alstead 20
- Charlestown 20
- Hanover 20
- Haverhill 20
- Lyme 20
- Orford 20
- Swanzey 20
- West Swanzey 20
- Winchester 20
- Alexandria 19
- Andover 19
- Bristol 19
- Claremont 19
- Danbury 19
- Dover 19
- Enfield 19
- Grafton 19
- Grantham 19
- Harrisville 19
- Hill 19
- Lebanon 19
- Lempster 19
- Marlborough 19
- New London 19
- Newbury 19
- Newport 19
- Richmond 19
- Salisbury 19
- Springfield 19
- Sunapee 19
- Unity 19
- Webster 19
- Wilmot 19
- Antrim 18
- Belmont 18
- Boscawen 18
- Bridgewater 18
- Brookline 18
- Canterbury 18
- Contoocook 18
- Deering 18
- Dublin 18
- Fitzwilliam 18
- Franklin 18
- Henniker 18
- Hillsborough 18
- Hopkinton 18
- Keene 18
- Laconia 18
- North Haverhill 18
- Northfield 18
- Rumney 18
- Sanbornton 18
- Suncook 18
- Tilton 18
- Tilton-Northfield 18
- Woodsville 18
- Ashland 17
- Bow Bog 17
- Brentwood 17
- Chichester 17
- East Concord 17
- Epsom 17
- Francestown 17
- Gilford 17
- Gilmanton 17
- Greenfield 17
- Holderness 17
- Jaffrey 17
- Londonderry 17
- Pembroke 17
- Pittsfield 17
- Plymouth 17
- Portsmouth 17
- Rindge 17
- Weare 17
- Westmoreland 17
- Allenstown 16
- Center Harbor 16
- Chesterfield 16
- Farmington 16
- Goffstown 16
- Greenville 16
- Lyndeborough 16
- Mont Vernon 16
- New Boston 16
- New Durham 16
- New Ipswich 16
- Pinardville 16
- Strafford 16
- Temple 16
- Thornton 16
- Wolfeboro 16
- Auburn 15
- Barnstead 15
- Bedford 15
- Candia 15
- Colebrook 15
- East Merrimack 15
- Groveton 15
- Hollis 15
- Hudson 15
- Jefferson 15
- Lancaster 15
- Litchfield 15
- Manchester 15
- Mason 15
- Merrimack 15
- Milford 15
- Moultonborough 15
- Northumberland 15
- Northwood 15
- Ossipee 15
- Rochester 15
- Sanbornville 15
- South Hooksett 15
- Stratford 15
- Tamworth 15
- Tuftonboro 15
- Wakefield 15
- Whitefield 15
- Woodstock 15
- Chester 14
- Derry 14
- Derry Village 14
- Epping 14
- Freedom 14
- Fremont 14
- Hampstead 14
- Jackson 14
- Lee 14
- Madison 14
- Nottingham 14
- Pelham 14
- Randolph 14
- Raymond 14
- Salem 14
- Sandown 14
- Windham 14
- Atkinson 13
- Berlin 13
- Danville 13
- Durham 13
- Gorham 13
- Kingston 13
- Madbury 13
- North Conway 13
- Peterborough 13
- Plaistow 13
- Somersworth 13
- East Kingston 12
- Exeter 12
- Kensington 12
- Milan 12
- Newmarket 12
- Newton 12
- Rollinsford 12
- Stratham Station 12
- Conway 11
- Greenland 11
- Hampton 11
- Hampton Beach 11
- Hampton Falls 11
- Hooksett 11
- Meredith 11
- North Hampton 11
- Seabrook 11
- New Castle 10
- Wilton 10
- Barrington 8
- Troy 7
AQI US, Metric