Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 10:53, Aug 21
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?
- Portsmouth60
- Hooksett58
- Candia56
- Farmington56
- Nottingham56
- Raymond56
- Strafford56
- Alexandria55
- Allenstown55
- Alton55
- Andover55
- Antrim55
- Ashland55
- Auburn55
- Belknap55
- Belmont55
- Bennington55
- Blodgett Landing55
- Boscawen55
- Bradford55
- Brentwood55
- Bristol55
- Carroll55
- Charlestown55
- Cheshire55
- Chester55
- Chichester55
- Claremont55
- Colebrook55
- Concord55
- Contoocook55
- Danbury55
- Danville55
- Deering55
- Derry55
- Dublin55
- Dummer55
- Dunbarton55
- Durham55
- East Merrimack55
- Enfield55
- Epping55
- Epsom55
- Fitzwilliam55
- Francestown55
- Franklin55
- Freedom55
- Fremont55
- Gilmanton55
- Goffstown55
- Gorham55
- Grantham55
- Greens55
- Greenville55
- Groveton55
- Hampstead55
- Harrisville55
- Haverhill55
- Henniker55
- Hill55
- Hinsdale55
- Holderness55
- Hollis55
- Hopkinton55
- Hudson55
- Jaffrey55
- Jefferson55
- Klondike Corner55
- Lancaster55
- Lebanon55
- Lee55
- Lempster55
- Litchfield55
- Littleton55
- Loudon55
- Lyme55
- Lyndeborough55
- Madbury55
- Madison55
- Marlborough55
- Mason55
- Merrimack55
- Milan55
- Milford55
- Milton55
- Moultonborough55
- New Boston55
- New Ipswich55
- New London55
- Newbury55
- Newfields55
- Newmarket55
- Newport55
- North Conway55
- Northfield55
- Northwood55
- Ossipee55
- Pembroke55
- Pinardville55
- Pittsfield55
- Plymouth55
- Rindge55
- Rochester55
- Rockingham55
- Rollinsford55
- Rumney55
- Salisbury55
- Sandown55
- Somersworth55
- South Hooksett55
- Springfield55
- Stratford55
- Sullivan55
- Suncook55
- Swanzey55
- Tamworth55
- Temple55
- Thornton55
- Tilton55
- Tilton Northfield55
- Tuftonboro55
- Wakefield55
- Walpole55
- Warner55
- Weare55
- Webster55
- West Swanzey55
- Whitefield55
- Wilmot55
- Wilton55
- Winchester55
- Windham55
- Wolfeboro55
- Woodsville55
- Atkinson54
- Kingston54
- Stratham54
- East Kingston53
- Effingham53
- Kensington53
- New Castle53
- North Hampton53
- Plaistow53
- Rye53
- Hampton52
- Hampton Beach52
- Seabrook51
- Amherst50
- Pelham49
- Manchester48
- Newton47
- Nashua46
- Lincoln45
- Exeter44
- Londonderry44
- New Hampton44
- Laconia41
- Warren41
- Sutton39
- Center Harbor38
- Dover37
- Brookline36
- Canterbury36
- Gilford36
- Meredith36
- Hanover35
- Chesterfield34
- Peterborough34
- Bethlehem33
- Hampton Falls33
- Keene33
- Barnstead32
- Bow32
- Troy31
- Alstead29
- Campton27
- Pittsburg27
- Hillsborough26
- Salem26
- Sandwich26
- Grafton County25
- Franconia23
- Randolph23
- Woodstock23
- Barrington22
- Conway20
- Berlin13
- Northumberland3
