Air quality in New Hampshire
Air quality index (AQI⁺) and PM2.5 air pollution in New Hampshire • 20:33, Apr 29
1 stations sponsored by IQAir Foundation
1 stations sponsored by IQAir Foundation
Live most polluted city ranking
Real-time New Hampshire most polluted city ranking
Learn more about global air quality
Which is the most polluted city in New Hampshire?
- Keene44
- Peterborough42
- Woodstock42
- Randolph41
- Laconia38
- Concord35
- Rockingham35
- Londonderry34
- Nashua33
- Portsmouth32
- Newton28
- Hinsdale23
- Chesterfield21
- Effingham21
- Exeter21
- Franconia21
- Winchester21
- Manchester20
- Troy20
- Northumberland19
- Walpole19
- West Swanzey19
- Bradford18
- Charlestown18
- Cheshire18
- Claremont18
- Dublin18
- Fitzwilliam18
- Grafton County18
- Harrisville18
- Jaffrey18
- Marlborough18
- Rindge18
- Swanzey18
- Amherst17
- Antrim17
- Bennington17
- Grantham17
- Lebanon17
- Lempster17
- New Ipswich17
- Newbury17
- Newport17
- Sullivan17
- Temple17
- Blodgett Landing16
- Deering16
- Enfield16
- Francestown16
- Greenville16
- Hanover16
- Littleton16
- Lyme16
- Mason16
- New London16
- Springfield16
- Wilton16
- Haverhill15
- Lyndeborough15
- Woodsville15
- Brookline14
- Henniker14
- Hillsborough14
- Milford14
- Stratford14
- Warren14
- Wilmot14
- Alstead13
- Bow13
- Colebrook13
- Conway13
- Groveton13
- Hollis13
- Thornton13
- Warner13
- Lancaster12
- Moultonborough12
- New Boston12
- Weare12
- Whitefield12
- Alexandria11
- Andover11
- Bethlehem11
- Canterbury11
- Contoocook11
- Danbury11
- Dummer11
- Gilford11
- Hopkinton11
- Jefferson11
- Klondike Corner11
- Lincoln11
- Salem11
- Salisbury11
- Suncook11
- Webster11
- Barnstead10
- Berlin10
- Boscawen10
- Bristol10
- Dunbarton10
- Franklin10
- Goffstown10
- Hill10
- Merrimack10
- Milan10
- Plymouth10
- Rumney10
- Allenstown9
- Alton9
- Ashland9
- Auburn9
- Belknap9
- Belmont9
- Brentwood9
- Candia9
- Carroll9
- Chichester9
- East Merrimack9
- Epsom9
- Gilmanton9
- Gorham9
- Holderness9
- Hooksett9
- Hudson9
- Litchfield9
- Loudon9
- Madison9
- Meredith9
- New Hampton9
- North Conway9
- Northfield9
- Ossipee9
- Pelham9
- Pembroke9
- Pinardville9
- Pittsfield9
- Sandwich9
- South Hooksett9
- Tamworth9
- Tilton9
- Tilton Northfield9
- Tuftonboro9
- Atkinson8
- Barrington8
- Chester8
- Danville8
- Derry8
- East Kingston8
- Epping8
- Farmington8
- Freedom8
- Fremont8
- Hampstead8
- Kensington8
- Kingston8
- Lee8
- Madbury8
- Milton8
- Newfields8
- Newmarket8
- Northwood8
- Nottingham8
- Plaistow8
- Raymond8
- Rochester8
- Sandown8
- Strafford8
- Wakefield8
- Windham8
- Wolfeboro8
- Durham7
- Hampton7
- Hampton Beach7
- Hampton Falls7
- North Hampton7
- Rollinsford7
- Seabrook7
- Somersworth7
- Stratham7
- New Castle6
- Dover3
