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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 | Dover | 39 |
| 2 | Keene | 33 |
| 3 | Concord | 32 |
| 4 | Portsmouth | 32 |
| 5 | Suncook | 31 |
| 6 | Londonderry | 30 |
| 7 | Brentwood | 29 |
| 8 | Sutton | 28 |
| 9 | West Lebanon | 26 |
| 10 | Hooksett | 25 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
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New Hampshire air quality data attribution
33Contributors
Government Contributor
- water1998
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29 stations
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Which is the most polluted city in New Hampshire?
- Dover 39
- Keene 33
- Concord 32
- Portsmouth 32
- Suncook 31
- Londonderry 30
- Brentwood 29
- Fitzwilliam 28
- Greenville 28
- Hollis 28
- Mason 28
- Nashua 28
- New Ipswich 28
- Richmond 28
- Rindge 28
- Sutton 28
- Allenstown 27
- Atkinson 27
- Auburn 27
- Bedford 27
- Bow Bog 27
- Candia 27
- Chester 27
- Danville 27
- Derry 27
- Derry Village 27
- Dublin 27
- Durham 27
- East Kingston 27
- East Merrimack 27
- Epping 27
- Francestown 27
- Fremont 27
- Goffstown 27
- Greenfield 27
- Hampstead 27
- Hinsdale 27
- Hudson 27
- Jaffrey 27
- Kingston 27
- Lee 27
- Litchfield 27
- Lyndeborough 27
- Madbury 27
- Manchester 27
- Merrimack 27
- Milford 27
- Mont Vernon 27
- New Boston 27
- Newmarket 27
- Newton 27
- Nottingham 27
- Pelham 27
- Pembroke 27
- Pinardville 27
- Plaistow 27
- Randolph 27
- Raymond 27
- Rollinsford 27
- Salem 27
- Sandown 27
- Somersworth 27
- South Hooksett 27
- Swanzey 27
- Temple 27
- Weare 27
- Winchester 27
- Windham 27
- Antrim 26
- Chichester 26
- Deering 26
- East Concord 26
- Epsom 26
- Exeter 26
- Farmington 26
- Greenland 26
- Hampton 26
- Hampton Beach 26
- Hampton Falls 26
- Harrisville 26
- Hillsborough 26
- Hopkinton 26
- Kensington 26
- Marlborough 26
- New Castle 26
- New Durham 26
- North Hampton 26
- North Woodstock 26
- Northwood 26
- Pittsfield 26
- Rochester 26
- Rye 26
- Sanbornville 26
- Seabrook 26
- Strafford 26
- Stratham Station 26
- Wakefield 26
- West Lebanon 26
- West Swanzey 26
- Alstead 25
- Andover 25
- Belmont 25
- Boscawen 25
- Canterbury 25
- Charlestown 25
- Contoocook 25
- Danbury 25
- Franklin 25
- Gilmanton 25
- Grafton 25
- Henniker 25
- Hill 25
- Hooksett 25
- Lempster 25
- New London 25
- Newbury 25
- Newport 25
- Northfield 25
- Ossipee 25
- Salisbury 25
- Sanbornton 25
- Sunapee 25
- Tilton 25
- Tilton-Northfield 25
- Unity 25
- Webster 25
- Wilmot 25
- Wolfeboro 25
- Alexandria 24
- Bristol 24
- Claremont 24
- Effingham 24
- Grantham 24
- Springfield 24
- Tuftonboro 24
- Bridgewater 23
- Freedom 23
- Center Harbor 22
- Enfield 22
- Laconia 22
- Lebanon 22
- Ashland 21
- Barnstead 21
- Holderness 21
- Moultonborough 21
- Plymouth 21
- Tamworth 21
- Lyme 20
- Madison 20
- Rumney 20
- Westmoreland 20
- Chesterfield 19
- Thornton 19
- Brookline 18
- Orford 18
- Barrington 15
- Gilford 15
- North Conway 15
- Peterborough 15
- Sandwich 13
- Woodstock 13
- Deerfield 12
- Meredith 12
- Hanover 10
- Haverhill 10
- Jackson 10
- Berlin 9
- Gorham 9
- North Haverhill 9
- Groveton 8
- Jefferson 8
- Lancaster 8
- Littleton 8
- Milan 8
- Northumberland 8
- Whitefield 8
- Woodsville 8
- Colebrook 7
- Conway 7
- Stratford 7
- Troy 7
- Wilton 5
AQI US, Metric