Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 00:50, Oct 18
Live most polluted city ranking
Real-time New Hampshire most polluted city ranking
Wildfires in New Hampshire
Real-time information
Active fires
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Which is the most polluted city in New Hampshire?
- Londonderry32
- Keene31
- Peterborough31
- Woodstock31
- Portsmouth28
- Pembroke20
- Meredith19
- Sandwich19
- Dover18
- Franconia18
- Grafton County18
- Nashua18
- Chesterfield17
- Bow16
- Brookline16
- Campton16
- Alstead15
- Hillsborough15
- New Hampton14
- Allenstown13
- Alton13
- Andover13
- Antrim13
- Atkinson13
- Auburn13
- Belknap13
- Belmont13
- Bennington13
- Blodgett Landing13
- Boscawen13
- Bradford13
- Brentwood13
- Candia13
- Charlestown13
- Cheshire13
- Chester13
- Chichester13
- Concord13
- Contoocook13
- Danbury13
- Danville13
- Deering13
- Derry13
- Dublin13
- Dunbarton13
- Durham13
- East Kingston13
- East Merrimack13
- Epping13
- Epsom13
- Farmington13
- Fitzwilliam13
- Francestown13
- Franklin13
- Fremont13
- Gilmanton13
- Goffstown13
- Greenville13
- Hampstead13
- Harrisville13
- Henniker13
- Hill13
- Hinsdale13
- Hollis13
- Hooksett13
- Hopkinton13
- Hudson13
- Jaffrey13
- Kensington13
- Kingston13
- Klondike Corner13
- Lee13
- Lempster13
- Lincoln13
- Litchfield13
- Loudon13
- Lyndeborough13
- Madbury13
- Marlborough13
- Mason13
- Merrimack13
- Milford13
- New Boston13
- New Ipswich13
- New London13
- Newbury13
- Newfields13
- Newmarket13
- Newport13
- Northfield13
- Northwood13
- Nottingham13
- Pinardville13
- Pittsfield13
- Plaistow13
- Raymond13
- Rindge13
- Rochester13
- Rockingham13
- Salisbury13
- Sandown13
- Somersworth13
- South Hooksett13
- Strafford13
- Stratham13
- Sullivan13
- Suncook13
- Sutton13
- Swanzey13
- Temple13
- Tilton13
- Tilton Northfield13
- Walpole13
- Warner13
- Warren13
- Weare13
- Webster13
- West Swanzey13
- Wilmot13
- Wilton13
- Winchester13
- Windham13
- Barrington12
- Exeter12
- Milton12
- Salem12
- Seabrook12
- Canterbury11
- Claremont11
- Hampton11
- Hampton Falls11
- Manchester11
- Newton11
- Pelham11
- Rollinsford11
- Springfield11
- Hampton Beach10
- Hanover10
- Laconia10
- North Hampton10
- Alexandria9
- Barnstead9
- Bristol9
- Grantham9
- Wolfeboro8
- Conway7
- Tuftonboro7
- Ashland6
- Berlin6
- Bethlehem6
- Carroll6
- Center Harbor6
- Colebrook6
- Dummer6
- Enfield6
- Freedom6
- Gilford6
- Gorham6
- Greens6
- Groveton6
- Haverhill6
- Holderness6
- Jefferson6
- Lancaster6
- Lebanon6
- Littleton6
- Lyme6
- Madison6
- Milan6
- Moultonborough6
- New Castle6
- North Conway6
- Northumberland6
- Ossipee6
- Pittsburg6
- Plymouth6
- Rumney6
- Rye6
- Stratford6
- Tamworth6
- Thornton6
- Wakefield6
- Whitefield6
- Woodsville6
- Troy2
- Randolph1
- Amherst0
- Effingham0
