Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 06:29, Sep 27
Live most polluted city ranking
Real-time New Hampshire most polluted city ranking
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Which is the most polluted city in New Hampshire?
- Portsmouth42
- Laconia32
- Londonderry32
- Nashua31
- Keene30
- Peterborough28
- Franconia27
- Canterbury25
- Bethlehem24
- Center Harbor24
- Sandwich24
- Meredith21
- New Hampton21
- Dover20
- Gilford20
- Campton19
- Sutton19
- Conway18
- Barnstead17
- Hooksett17
- Northumberland17
- Pittsburg17
- Randolph17
- Woodstock17
- Alstead16
- Chesterfield16
- Manchester16
- Grafton County15
- Newton14
- Pembroke14
- Troy14
- Hillsborough13
- Colebrook12
- Hanover12
- Alexandria11
- Alton11
- Andover11
- Ashland11
- Belknap11
- Belmont11
- Berlin11
- Bow11
- Bristol11
- Brookline11
- Carroll11
- Danbury11
- Dummer11
- Effingham11
- Enfield11
- Franklin11
- Freedom11
- Gilmanton11
- Gorham11
- Greens11
- Groveton11
- Haverhill11
- Hill11
- Holderness11
- Jefferson11
- Lancaster11
- Littleton11
- Loudon11
- Lyme11
- Madison11
- Milan11
- Milton11
- Moultonborough11
- North Conway11
- Northfield11
- Ossipee11
- Pelham11
- Plymouth11
- Rumney11
- Stratford11
- Tamworth11
- Thornton11
- Tilton11
- Tilton Northfield11
- Tuftonboro11
- Wakefield11
- Whitefield11
- Wolfeboro11
- Woodsville11
- Boscawen10
- Chichester10
- Concord10
- Epsom10
- Farmington10
- Lebanon10
- Madbury10
- Northwood10
- Pittsfield10
- Rochester10
- Salisbury10
- Somersworth10
- Springfield10
- Strafford10
- Wilmot10
- Allenstown9
- Antrim9
- Atkinson9
- Auburn9
- Bennington9
- Blodgett Landing9
- Bradford9
- Brentwood9
- Candia9
- Chester9
- Claremont9
- Contoocook9
- Danville9
- Deering9
- Derry9
- Dublin9
- Dunbarton9
- Durham9
- East Kingston9
- East Merrimack9
- Epping9
- Francestown9
- Fremont9
- Goffstown9
- Grantham9
- Hampstead9
- Hampton9
- Hampton Beach9
- Harrisville9
- Henniker9
- Hopkinton9
- Jaffrey9
- Kensington9
- Kingston9
- Klondike Corner9
- Lee9
- Lempster9
- Litchfield9
- Lyndeborough9
- Merrimack9
- Milford9
- New Boston9
- New Castle9
- New London9
- Newbury9
- Newfields9
- Newmarket9
- Newport9
- North Hampton9
- Nottingham9
- Pinardville9
- Plaistow9
- Raymond9
- Rockingham9
- Rollinsford9
- Rye9
- Sandown9
- Seabrook9
- South Hooksett9
- Stratham9
- Sullivan9
- Suncook9
- Temple9
- Warner9
- Weare9
- Webster9
- Wilton9
- Windham9
- Charlestown8
- Cheshire8
- Greenville8
- Hollis8
- Hudson8
- Marlborough8
- Mason8
- New Ipswich8
- Rindge8
- Hampton Falls7
- Walpole7
- Amherst6
- Barrington6
- Exeter6
- Fitzwilliam6
- Hinsdale6
- Lincoln6
- Swanzey6
- Warren6
- West Swanzey6
- Winchester6
- Salem3
