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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 | Londonderry | 31 |
| 2 | Peterborough | 29 |
| 3 | Concord | 25 |
| 4 | Dover | 20 |
| 5 | Portsmouth | 19 |
| 6 | Barrington | 18 |
| 7 | Brentwood | 18 |
| 8 | Brookline | 17 |
| 9 | Suncook | 16 |
| 10 | Sutton | 16 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
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New Hampshire air quality data attribution
34Contributors
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- water1998
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30 stations
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Which is the most polluted city in New Hampshire?
- Londonderry 31
- Nashua 31
- Peterborough 29
- North Woodstock 27
- Concord 25
- Randolph 23
- Dover 20
- Portsmouth 19
- Rye 19
- Barrington 18
- Brentwood 18
- Brookline 17
- Suncook 16
- Sutton 16
- Wilton 15
- Hanover 14
- Barnstead 13
- Keene 13
- Hinsdale 12
- Laconia 12
- Troy 12
- West Lebanon 12
- Winchester 12
- Chesterfield 11
- Fitzwilliam 11
- Gilford 11
- Greenville 11
- Hollis 11
- Hudson 11
- Mason 11
- New Ipswich 11
- Pelham 11
- Richmond 11
- Rindge 11
- Salem 11
- Sandwich 11
- Windham 11
- Atkinson 10
- Bedford 10
- Chester 10
- Danville 10
- Derry 10
- Derry Village 10
- East Merrimack 10
- Hampstead 10
- Jaffrey 10
- Litchfield 10
- Lyndeborough 10
- Merrimack 10
- Milford 10
- Mont Vernon 10
- Newton 10
- Plaistow 10
- Sandown 10
- Swanzey 10
- Temple 10
- West Swanzey 10
- Allenstown 9
- Alstead 9
- Antrim 9
- Auburn 9
- Bow Bog 9
- Candia 9
- Deering 9
- Dublin 9
- East Kingston 9
- Francestown 9
- Fremont 9
- Goffstown 9
- Greenfield 9
- Hampton Beach 9
- Harrisville 9
- Hillsborough 9
- Kensington 9
- Kingston 9
- Manchester 9
- Marlborough 9
- New Boston 9
- Pembroke 9
- Pinardville 9
- Raymond 9
- Seabrook 9
- South Hooksett 9
- Weare 9
- Westmoreland 9
- Andover 8
- Belmont 8
- Boscawen 8
- Bridgewater 8
- Bristol 8
- Canterbury 8
- Charlestown 8
- Chichester 8
- Claremont 8
- Contoocook 8
- Conway 8
- Danbury 8
- Deerfield 8
- East Concord 8
- Epping 8
- Epsom 8
- Exeter 8
- Franklin 8
- Gilmanton 8
- Hampton 8
- Hampton Falls 8
- Henniker 8
- Hill 8
- Hopkinton 8
- Lee 8
- Lempster 8
- Littleton 8
- Meredith 8
- New London 8
- Newbury 8
- Newport 8
- Northfield 8
- Northwood 8
- Nottingham 8
- Pittsfield 8
- Salisbury 8
- Sanbornton 8
- Sunapee 8
- Tilton 8
- Tilton-Northfield 8
- Unity 8
- Webster 8
- Wilmot 8
- Alexandria 7
- Ashland 7
- Center Harbor 7
- Durham 7
- Enfield 7
- Farmington 7
- Freedom 7
- Grafton 7
- Grantham 7
- Haverhill 7
- Holderness 7
- Lebanon 7
- Lyme 7
- Madison 7
- Moultonborough 7
- New Durham 7
- Newmarket 7
- North Hampton 7
- Orford 7
- Ossipee 7
- Plymouth 7
- Rochester 7
- Rumney 7
- Sanbornville 7
- Springfield 7
- Strafford 7
- Stratham Station 7
- Tamworth 7
- Thornton 7
- Tuftonboro 7
- Wakefield 7
- Wolfeboro 7
- Woodstock 7
- Greenland 6
- Madbury 6
- North Haverhill 6
- Woodsville 6
- Colebrook 5
- Groveton 5
- Hooksett 5
- Jackson 5
- Jefferson 5
- Lancaster 5
- New Castle 5
- North Conway 5
- Northumberland 5
- Rollinsford 5
- Somersworth 5
- Stratford 5
- Whitefield 5
- Berlin 4
- Gorham 4
- Milan 4
- Effingham 0
AQI US, Metric