Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 11:42, Aug 18
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?
- Portsmouth62
- Hooksett55
- Amherst52
- Dover51
- Manchester51
- Nashua49
- Lincoln44
- Newton44
- Warren44
- Colebrook43
- Dublin43
- Dummer43
- Exeter43
- Fitzwilliam43
- Greenville43
- Hinsdale43
- Hollis43
- Hudson43
- Jaffrey43
- Lyndeborough43
- Marlborough43
- Mason43
- Milan43
- Milford43
- New Ipswich43
- Pelham43
- Rindge43
- Swanzey43
- Temple43
- West Swanzey43
- Wilton43
- Winchester43
- Alexandria42
- Andover42
- Antrim42
- Ashland42
- Bennington42
- Blodgett Landing42
- Bradford42
- Bristol42
- Charlestown42
- Cheshire42
- Claremont42
- Contoocook42
- Danbury42
- Deering42
- Derry42
- Dunbarton42
- East Merrimack42
- Enfield42
- Francestown42
- Goffstown42
- Gorham42
- Grantham42
- Greens42
- Groveton42
- Harrisville42
- Haverhill42
- Henniker42
- Hill42
- Holderness42
- Hopkinton42
- Jefferson42
- Klondike Corner42
- Lancaster42
- Lebanon42
- Lempster42
- Litchfield42
- Littleton42
- Lyme42
- Merrimack42
- New Boston42
- New London42
- Newbury42
- Newport42
- Pinardville42
- Plymouth42
- Rumney42
- Salisbury42
- Springfield42
- Stratford42
- Sullivan42
- Thornton42
- Walpole42
- Warner42
- Weare42
- Webster42
- Whitefield42
- Wilmot42
- Windham42
- Woodsville42
- Allenstown41
- Atkinson41
- Auburn41
- Belknap41
- Belmont41
- Boscawen41
- Candia41
- Carroll41
- Chester41
- Chichester41
- Concord41
- Epsom41
- Franklin41
- Gilford41
- Hampstead41
- Loudon41
- Madison41
- Moultonborough41
- North Conway41
- Northfield41
- Pembroke41
- Plaistow41
- Raymond41
- Sandown41
- South Hooksett41
- Suncook41
- Tamworth41
- Tilton41
- Tilton Northfield41
- Alton40
- Danville40
- Freedom40
- Fremont40
- Gilmanton40
- Kingston40
- Northwood40
- Ossipee40
- Pittsfield40
- Tuftonboro40
- Wolfeboro40
- Brentwood39
- East Kingston39
- Effingham39
- Epping39
- Farmington39
- Kensington39
- Lee39
- Milton39
- Newfields39
- Newmarket39
- Nottingham39
- Rochester39
- Rockingham39
- Strafford39
- Wakefield39
- Bow38
- Durham38
- Hampton38
- Madbury38
- Rollinsford38
- Seabrook38
- Somersworth38
- Stratham38
- Hampton Beach37
- Londonderry37
- North Hampton37
- Brookline36
- New Castle35
- Rye35
- Canterbury34
- Meredith34
- Barnstead33
- Berlin33
- Hampton Falls29
- Peterborough29
- Barrington28
- Salem27
- New Hampton26
- Sutton26
- Alstead23
- Sandwich23
- Hanover22
- Laconia22
- Center Harbor21
- Chesterfield21
- Franconia21
- Keene21
- Pittsburg19
- Bethlehem18
- Troy18
- Grafton County14
- Hillsborough13
- Woodstock12
- Campton11
- Randolph9
- Conway7
- Northumberland2
