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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 |  Peterborough | 22 |
| 2 | Concord | 20 |
| 3 | Portsmouth | 20 |
| 4 | Keene | 18 |
| 5 | Sutton | 18 |
| 6 | Chesterfield | 17 |
| 7 | Brookline | 15 |
| 8 | Suncook | 15 |
| 9 | West Lebanon | 15 |
| 10 | Barrington | 14 |
(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
29 Anonymous Contributors
Which is the most polluted city in New Hampshire?
- Haverhill 42
- Lyme 41
- Orford 41
- Woodsville 41
- Enfield 40
- Lebanon 40
- North Haverhill 40
- Hampton 38
- Hampton Beach 38
- Hampton Falls 38
- Kensington 38
- Newton 38
- Seabrook 38
- Grantham 37
- North Hampton 37
- Rye 37
- Alexandria 36
- Andover 36
- Ashland 36
- Bridgewater 36
- Bristol 36
- Danbury 36
- East Kingston 36
- Exeter 36
- Grafton 36
- Hill 36
- Holderness 36
- Lancaster 36
- New Castle 36
- New London 36
- North Woodstock 36
- Northumberland 36
- Plaistow 36
- Plymouth 36
- Rumney 36
- Springfield 36
- Thornton 36
- Whitefield 36
- Wilmot 36
- Woodstock 36
- Atkinson 35
- Greenland 35
- Groveton 35
- Salem 35
- Stratford 35
- Sunapee 35
- Claremont 34
- Jefferson 34
- Kingston 34
- Newport 34
- Stratham Station 34
- Boscawen 33
- Canterbury 33
- Contoocook 33
- Danville 33
- Franklin 33
- Hampstead 33
- Henniker 33
- Newbury 33
- Newmarket 33
- Northfield 33
- Pelham 33
- Salisbury 33
- Sanbornton 33
- Tilton 33
- Tilton-Northfield 33
- Unity 33
- Webster 33
- Belmont 32
- Center Harbor 32
- Chester 32
- Colebrook 32
- Deering 32
- Derry 32
- Derry Village 32
- Durham 32
- East Concord 32
- East Merrimack 32
- Epping 32
- Fremont 32
- Hillsborough 32
- Hopkinton 32
- Hudson 32
- Jackson 32
- Lempster 32
- Litchfield 32
- Madbury 32
- Merrimack 32
- Nashua 32
- Randolph 32
- Sandown 32
- Weare 32
- Windham 32
- Allenstown 31
- Antrim 31
- Auburn 31
- Bedford 31
- Bow Bog 31
- Candia 31
- Charlestown 31
- Chichester 31
- Epsom 31
- Francestown 31
- Gilmanton 31
- Goffstown 31
- Hollis 31
- Lee 31
- Lyndeborough 31
- Manchester 31
- Milford 31
- Mont Vernon 31
- New Boston 31
- Northwood 31
- Nottingham 31
- Pembroke 31
- Pinardville 31
- Pittsfield 31
- Raymond 31
- Rollinsford 31
- South Hooksett 31
- Strafford 31
- Berlin 30
- Farmington 30
- Gorham 30
- Greenfield 30
- Milan 30
- Moultonborough 30
- New Durham 30
- Rochester 30
- Somersworth 30
- Tamworth 30
- Tuftonboro 30
- Wolfeboro 30
- Alstead 29
- Greenville 29
- Harrisville 29
- Mason 29
- New Ipswich 29
- Temple 29
- Dublin 28
- Jaffrey 28
- Ossipee 28
- Rindge 28
- Fitzwilliam 27
- Marlborough 27
- Richmond 27
- Sanbornville 27
- Swanzey 27
- Wakefield 27
- West Swanzey 27
- Madison 26
- North Conway 26
- Freedom 25
- Westmoreland 25
- Winchester 25
- Hinsdale 24
- Peterborough 22
- Concord 20
- Portsmouth 20
- Keene 18
- Sutton 18
- Chesterfield 17
- Brookline 15
- Suncook 15
- West Lebanon 15
- Barrington 14
- Hanover 14
- Dover 13
- Wilton 12
- Sandwich 11
- Londonderry 10
- Meredith 10
- Brentwood 9
- Laconia 9
- Barnstead 8
- Deerfield 8
- Gilford 7
- Littleton 7
- Conway 6
- Hooksett 4
- Effingham 0
AQI US, Metric