Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 03:14, Sep 28
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?
- Portsmouth34
- Londonderry32
- Rye32
- Peterborough31
- Nashua28
- Keene27
- Woodstock27
- Effingham26
- Laconia26
- Concord25
- Hooksett24
- Greens23
- Pittsburg12
- Bethlehem8
- New Hampton8
- Sutton8
- Colebrook7
- Dummer7
- Groveton7
- Hanover7
- Lincoln7
- Milan7
- Stratford7
- Warren7
- Alexandria6
- Allenstown6
- Alstead6
- Alton6
- Amherst6
- Andover6
- Antrim6
- Ashland6
- Atkinson6
- Auburn6
- Barnstead6
- Belknap6
- Belmont6
- Bennington6
- Berlin6
- Blodgett Landing6
- Boscawen6
- Bow6
- Bradford6
- Brentwood6
- Bristol6
- Brookline6
- Candia6
- Carroll6
- Charlestown6
- Cheshire6
- Chester6
- Chichester6
- Claremont6
- Contoocook6
- Danbury6
- Danville6
- Deering6
- Derry6
- Dublin6
- Dunbarton6
- Durham6
- East Kingston6
- East Merrimack6
- Enfield6
- Epping6
- Epsom6
- Exeter6
- Farmington6
- Fitzwilliam6
- Francestown6
- Franklin6
- Freedom6
- Fremont6
- Gilmanton6
- Goffstown6
- Gorham6
- Grantham6
- Greenville6
- Hampstead6
- Hampton6
- Hampton Beach6
- Hampton Falls6
- Harrisville6
- Haverhill6
- Henniker6
- Hill6
- Hinsdale6
- Holderness6
- Hollis6
- Hopkinton6
- Hudson6
- Jaffrey6
- Jefferson6
- Kensington6
- Kingston6
- Klondike Corner6
- Lancaster6
- Lebanon6
- Lee6
- Lempster6
- Litchfield6
- Littleton6
- Loudon6
- Lyme6
- Lyndeborough6
- Madbury6
- Madison6
- Manchester6
- Marlborough6
- Mason6
- Merrimack6
- Milford6
- Milton6
- Moultonborough6
- New Boston6
- New Castle6
- New Ipswich6
- New London6
- Newbury6
- Newfields6
- Newmarket6
- Newport6
- North Conway6
- North Hampton6
- Northfield6
- Northwood6
- Nottingham6
- Ossipee6
- Pelham6
- Pinardville6
- Pittsfield6
- Plaistow6
- Plymouth6
- Raymond6
- Rindge6
- Rochester6
- Rockingham6
- Rollinsford6
- Rumney6
- Salisbury6
- Sandown6
- Seabrook6
- Somersworth6
- South Hooksett6
- Springfield6
- Strafford6
- Stratham6
- Sullivan6
- Suncook6
- Swanzey6
- Tamworth6
- Temple6
- Thornton6
- Tilton6
- Tilton Northfield6
- Troy6
- Tuftonboro6
- Wakefield6
- Walpole6
- Warner6
- Weare6
- Webster6
- West Swanzey6
- Whitefield6
- Wilmot6
- Wilton6
- Winchester6
- Windham6
- Wolfeboro6
- Woodsville6
- Dover5
- Franconia5
- Center Harbor4
- Grafton County4
- Hillsborough4
- Chesterfield3
- Meredith3
- Northumberland3
- Randolph3
- Canterbury2
- Conway2
- Newton2
- Campton1
- Pembroke1
- Sandwich1
- Barrington0
- Gilford0
- Salem0
