Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 11:05, Oct 16
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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Learn more about global air quality
Which is the most polluted city in New Hampshire?
- Peterborough32
- Effingham28
- Hooksett27
- Portsmouth27
- Keene22
- Londonderry21
- Woodstock19
- Sutton15
- Dover14
- Exeter13
- Lincoln11
- Warren11
- Greenville8
- Manchester8
- Mason8
- New Hampton8
- New Ipswich8
- Cheshire7
- Fitzwilliam7
- Hinsdale7
- Jaffrey7
- Laconia7
- Marlborough7
- Rindge7
- Swanzey7
- Temple7
- Troy7
- West Swanzey7
- Winchester7
- Alexandria6
- Allenstown6
- Alton6
- Andover6
- Antrim6
- Ashland6
- Atkinson6
- Auburn6
- Belknap6
- Belmont6
- Bennington6
- Berlin6
- Bethlehem6
- Blodgett Landing6
- Boscawen6
- Bradford6
- Brentwood6
- Bristol6
- Candia6
- Carroll6
- Center Harbor6
- Charlestown6
- Chester6
- Chichester6
- Claremont6
- Colebrook6
- Concord6
- Contoocook6
- Danbury6
- Danville6
- Deering6
- Derry6
- Dublin6
- Dummer6
- Dunbarton6
- Durham6
- East Kingston6
- East Merrimack6
- Enfield6
- Epping6
- Epsom6
- Farmington6
- Francestown6
- Franklin6
- Freedom6
- Fremont6
- Gilmanton6
- Goffstown6
- Gorham6
- Grantham6
- Greens6
- Groveton6
- Hampstead6
- Hampton6
- Hampton Beach6
- Harrisville6
- Haverhill6
- Henniker6
- Hill6
- Holderness6
- Hollis6
- Hopkinton6
- Hudson6
- Jefferson6
- Kensington6
- Kingston6
- Klondike Corner6
- Lancaster6
- Lebanon6
- Lee6
- Lempster6
- Litchfield6
- Littleton6
- Loudon6
- Lyme6
- Lyndeborough6
- Madbury6
- Madison6
- Merrimack6
- Milan6
- Milford6
- Milton6
- Moultonborough6
- New Boston6
- New Castle6
- New London6
- Newbury6
- Newfields6
- Newmarket6
- Newport6
- North Conway6
- North Hampton6
- Northfield6
- Northwood6
- Nottingham6
- Ossipee6
- Pinardville6
- Pittsfield6
- Plaistow6
- Plymouth6
- Raymond6
- Rochester6
- Rockingham6
- Rollinsford6
- Rumney6
- Rye6
- Salisbury6
- Sandown6
- Seabrook6
- Somersworth6
- South Hooksett6
- Springfield6
- Strafford6
- Stratford6
- Stratham6
- Sullivan6
- Suncook6
- Tamworth6
- Thornton6
- Tilton6
- Tilton Northfield6
- Tuftonboro6
- Wakefield6
- Walpole6
- Warner6
- Weare6
- Webster6
- Whitefield6
- Wilmot6
- Wilton6
- Windham6
- Wolfeboro6
- Woodsville6
- Barrington5
- Franconia5
- Pelham5
- Barnstead4
- Brookline4
- Conway4
- Meredith4
- Nashua4
- Newton4
- Pembroke4
- Bow3
- Campton3
- Chesterfield3
- Hampton Falls3
- Hillsborough3
- Northumberland3
- Pittsburg3
- Canterbury2
- Salem2
- Sandwich2
- Alstead1
- Gilford1
- Grafton County1
- Hanover1
- Randolph1
- Amherst0
