Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 16:20, Sep 13
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?
- Portsmouth44
- Colebrook33
- Peterborough32
- Stratford29
- Londonderry25
- Groveton24
- Dummer22
- Keene22
- Lancaster22
- Berlin21
- Jefferson21
- Laconia21
- Milan21
- Nashua21
- Whitefield21
- Woodstock21
- Concord20
- Gorham20
- Greens19
- Littleton19
- Ashland18
- Carroll18
- Freedom18
- Holderness18
- Madison18
- Moultonborough18
- North Conway18
- Ossipee18
- Plymouth18
- Rumney18
- Tamworth18
- Thornton18
- Tuftonboro18
- Woodsville18
- Alexandria17
- Allenstown17
- Alton17
- Andover17
- Auburn17
- Belknap17
- Belmont17
- Boscawen17
- Bristol17
- Candia17
- Chichester17
- Contoocook17
- Danbury17
- Dunbarton17
- Effingham17
- Epsom17
- Franklin17
- Gilmanton17
- Goffstown17
- Hanover17
- Haverhill17
- Hill17
- Hooksett17
- Hopkinton17
- Loudon17
- Northfield17
- Northwood17
- Pinardville17
- Pittsfield17
- Salisbury17
- South Hooksett17
- Suncook17
- Tilton17
- Tilton Northfield17
- Warner17
- Webster17
- Wilmot17
- Wolfeboro17
- Blodgett Landing16
- Bradford16
- Chester16
- Deering16
- Derry16
- East Merrimack16
- Enfield16
- Francestown16
- Grantham16
- Henniker16
- Hudson16
- Klondike Corner16
- Litchfield16
- Lyme16
- Merrimack16
- New Boston16
- New London16
- Newbury16
- Raymond16
- Springfield16
- Sutton16
- Wakefield16
- Weare16
- Windham16
- Antrim15
- Atkinson15
- Bennington15
- Charlestown15
- Cheshire15
- Claremont15
- Dublin15
- Exeter15
- Fitzwilliam15
- Greenville15
- Hampstead15
- Harrisville15
- Hinsdale15
- Hollis15
- Jaffrey15
- Lebanon15
- Lempster15
- Lincoln15
- Lyndeborough15
- Marlborough15
- Mason15
- Milford15
- New Ipswich15
- Newport15
- Plaistow15
- Rindge15
- Sandown15
- Sullivan15
- Swanzey15
- Temple15
- Walpole15
- Warren15
- West Swanzey15
- Wilton15
- Winchester15
- Danville14
- Grafton County14
- Nottingham14
- Chesterfield13
- Fremont13
- Farmington12
- Kingston12
- Meredith12
- Milton12
- Rockingham12
- Barrington11
- Brentwood11
- East Kingston11
- Epping11
- Manchester11
- Pembroke11
- Strafford11
- New Hampton10
- Pittsburg10
- Durham9
- Hampton9
- Hampton Beach9
- Kensington9
- Lee9
- Madbury9
- Newfields9
- Newmarket9
- Pelham9
- Rochester9
- Rollinsford9
- Seabrook9
- Somersworth9
- Stratham9
- Gilford8
- Hillsborough8
- North Hampton8
- Bow7
- Center Harbor7
- New Castle7
- Rye7
- Brookline6
- Dover5
- Salem5
- Bethlehem4
- Newton4
- Alstead3
- Conway3
- Franconia3
- Hampton Falls3
- Randolph3
- Amherst2
- Campton2
- Canterbury2
- Northumberland2
- Troy2
- Sandwich1
- Barnstead0
