Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 06:30, 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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Learn more about global air quality
Which is the most polluted city in New Hampshire?
- Portsmouth66
- Hooksett60
- Amherst57
- Effingham56
- Newton54
- Pelham54
- Hampton Falls53
- Hollis52
- Hudson52
- Litchfield52
- Manchester52
- Merrimack52
- Windham52
- Atkinson51
- Derry51
- East Merrimack51
- Mason51
- Milford51
- Hampstead50
- Greenville49
- Londonderry49
- Nashua49
- New Hampton49
- Plaistow49
- Sandown49
- Brentwood48
- Chester48
- Danville48
- Durham48
- East Kingston48
- Epping48
- Fremont48
- Hampton48
- Hampton Beach48
- Kensington48
- Kingston48
- Lee48
- Madbury48
- New Castle48
- Newfields48
- Newmarket48
- North Hampton48
- Rockingham48
- Rollinsford48
- Rye48
- Seabrook48
- Somersworth48
- Stratham48
- Sutton48
- Auburn47
- Dover47
- Lincoln47
- New Ipswich47
- Nottingham47
- Raymond47
- Rochester47
- Warren47
- Wilton47
- Candia46
- Exeter46
- Farmington46
- Laconia46
- Milton46
- South Hooksett46
- Strafford46
- Center Harbor45
- Chesterfield45
- Northwood45
- Peterborough45
- Wakefield45
- Allenstown44
- Epsom44
- Klondike Corner44
- Lyndeborough44
- Pinardville44
- Temple44
- Alton43
- Chichester43
- Freedom43
- Goffstown43
- New Boston43
- Pembroke43
- Pittsfield43
- Rindge43
- Suncook43
- Wolfeboro43
- Brookline42
- Concord42
- Dunbarton42
- Francestown42
- Gilmanton42
- Jaffrey42
- Loudon42
- Madison42
- Ossipee42
- Weare42
- Belknap41
- Bennington41
- Carroll41
- Deering41
- Dublin41
- Fitzwilliam41
- Hopkinton41
- Meredith41
- North Conway41
- Tuftonboro41
- Belmont40
- Contoocook40
- Gilford40
- Harrisville40
- Northfield40
- Alstead39
- Antrim39
- Bethlehem39
- Boscawen39
- Hanover39
- Henniker39
- Moultonborough39
- Tamworth39
- Tilton Northfield39
- Webster39
- Marlborough38
- Tilton38
- Franconia37
- Franklin37
- Salem37
- Keene36
- Warner36
- Bow35
- Cheshire35
- Greens35
- Salisbury35
- Swanzey35
- Andover34
- Barnstead34
- Berlin34
- Bradford34
- Gorham34
- Holderness34
- West Swanzey34
- Winchester34
- Ashland33
- Bristol33
- Canterbury33
- Hill33
- Hinsdale33
- Pittsburg33
- Woodstock33
- Danbury32
- Sandwich32
- Wilmot32
- Campton31
- Milan31
- New London31
- Newbury31
- Plymouth31
- Thornton31
- Alexandria30
- Blodgett Landing30
- Lempster29
- Rumney29
- Dummer28
- Grafton County28
- Jefferson28
- Springfield28
- Walpole28
- Whitefield28
- Charlestown27
- Claremont27
- Enfield27
- Grantham27
- Groveton27
- Haverhill27
- Lancaster27
- Lebanon27
- Littleton27
- Lyme27
- Newport27
- Northumberland27
- Randolph27
- Sullivan27
- Woodsville27
- Hillsborough26
- Stratford26
- Troy25
- Conway24
- Barrington23
- Colebrook18
