Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 00:44, Sep 27
Live most polluted city ranking
Real-time New Hampshire most polluted city ranking
Wildfires in New Hampshire
Real-time information
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Which is the most polluted city in New Hampshire?
- Portsmouth37
- Rye35
- Londonderry32
- Keene31
- Laconia31
- Nashua31
- Peterborough28
- Center Harbor25
- Canterbury24
- Concord24
- Franconia24
- Sandwich24
- Gilford23
- Bethlehem22
- Bow21
- Meredith21
- Pembroke21
- Campton20
- Greens20
- Hillsborough20
- Chesterfield19
- Barnstead18
- New Hampton18
- Dover17
- Hooksett17
- Northumberland17
- Pittsburg17
- Troy17
- Woodstock17
- Conway16
- Manchester16
- Sutton14
- Alstead13
- Grafton County13
- Brookline12
- Colebrook12
- Stratford12
- Dummer11
- Effingham11
- Groveton11
- Hanover11
- Littleton11
- Pelham11
- Randolph11
- Woodsville11
- Alexandria10
- Allenstown10
- Alton10
- Andover10
- Ashland10
- Auburn10
- Belknap10
- Belmont10
- Berlin10
- Blodgett Landing10
- Boscawen10
- Bristol10
- Candia10
- Carroll10
- Chichester10
- Contoocook10
- Danbury10
- Dunbarton10
- Enfield10
- Epsom10
- Farmington10
- Franklin10
- Freedom10
- Gilmanton10
- Goffstown10
- Gorham10
- Grantham10
- Haverhill10
- Henniker10
- Hill10
- Holderness10
- Hopkinton10
- Jefferson10
- Lancaster10
- Lebanon10
- Loudon10
- Lyme10
- Madison10
- Milan10
- Milton10
- Moultonborough10
- New London10
- Newbury10
- North Conway10
- Northfield10
- Northwood10
- Ossipee10
- Pinardville10
- Pittsfield10
- Plymouth10
- Rumney10
- Salisbury10
- South Hooksett10
- Springfield10
- Strafford10
- Suncook10
- Tamworth10
- Thornton10
- Tilton10
- Tilton Northfield10
- Tuftonboro10
- Wakefield10
- Warner10
- Weare10
- Webster10
- Whitefield10
- Wilmot10
- Wolfeboro10
- Bradford9
- Chester9
- Deering9
- East Merrimack9
- Epping9
- Francestown9
- Klondike Corner9
- Litchfield9
- Lyndeborough9
- Merrimack9
- New Boston9
- Newport9
- Newton9
- Nottingham9
- Raymond9
- Rochester9
- Antrim8
- Atkinson8
- Bennington8
- Brentwood8
- Claremont8
- Danville8
- Derry8
- Durham8
- East Kingston8
- Fremont8
- Greenville8
- Hampstead8
- Hollis8
- Hudson8
- Kensington8
- Kingston8
- Lee8
- Madbury8
- Mason8
- Milford8
- New Ipswich8
- Newfields8
- Newmarket8
- Plaistow8
- Rockingham8
- Sandown8
- Somersworth8
- Stratham8
- Sullivan8
- Temple8
- Wilton8
- Windham8
- Charlestown7
- Cheshire7
- Dublin7
- Fitzwilliam7
- Hampton7
- Hampton Beach7
- Harrisville7
- Hinsdale7
- Jaffrey7
- Lempster7
- Marlborough7
- New Castle7
- North Hampton7
- Rindge7
- Rollinsford7
- Seabrook7
- Swanzey7
- Walpole7
- Warren7
- West Swanzey7
- Winchester7
- Barrington6
- Exeter6
- Hampton Falls6
- Lincoln6
- Salem4
- Amherst3
