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Air quality in New Hampshire
Air quality index (AQI) and PM2.5 air pollution in New Hampshire
LIVE AQI CITY RANKING
Real-time New Hampshire
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Keene | 53 |
| 2 | Sutton | 45 |
| 3 | Westmoreland | 34 |
| 4 | Chesterfield | 32 |
| 5 | Brookline | 26 |
| 6 | Rye | 26 |
| 7 | Dover | 23 |
| 8 | Brentwood | 18 |
| 9 | Hanover | 18 |
| 10 | Barnstead | 17 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
34 Contributors
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LIVE AQI CITY RANKING
Real-time New Hampshire
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Troy | 4 |
| 2 | Meredith | 8 |
| 3 | Barrington | 10 |
| 4 | Gilford | 10 |
| 5 | Sandwich | 10 |
| 6 | Wilton | 10 |
| 7 | Peterborough | 11 |
| 8 | Conway | 13 |
| 9 | West Lebanon | 13 |
| 10 | Portsmouth | 14 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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New Hampshire air quality data attribution
34Contributors
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- 31 Anonymous contributors
31 stations
31 Anonymous
Which is the most polluted city in New Hampshire?
- Keene53
- Sutton45
- Westmoreland34
- Chesterfield32
- Brookline26
- Rye26
- Dover23
- Brentwood18
- Hanover18
- Barnstead17
- Effingham17
- Laconia17
- Littleton17
- Londonderry17
- Hooksett16
- Deerfield15
- Hudson14
- Nashua14
- Pelham14
- Portsmouth14
- Salem14
- Windham14
- Alstead13
- Atkinson13
- Auburn13
- Bedford13
- Chester13
- Conway13
- Derry13
- Derry Village13
- East Merrimack13
- Hampstead13
- Hinsdale13
- Hollis13
- Litchfield13
- Merrimack13
- West Lebanon13
- West Swanzey13
- Winchester13
- Charlestown12
- Claremont12
- Manchester12
- Milford12
- Pinardville12
- Plaistow12
- Richmond12
- Sandown12
- South Hooksett12
- Swanzey12
- Candia11
- Danville11
- Fitzwilliam11
- Goffstown11
- Greenville11
- Jaffrey11
- Lempster11
- Marlborough11
- Mason11
- Mont Vernon11
- New Ipswich11
- Peterborough11
- Rindge11
- Temple11
- Unity11
- Allenstown10
- Antrim10
- Barrington10
- Bow Bog10
- Chichester10
- Concord10
- Deering10
- Dublin10
- East Concord10
- East Kingston10
- Epping10
- Epsom10
- Francestown10
- Fremont10
- Gilford10
- Greenfield10
- Harrisville10
- Hillsborough10
- Kingston10
- Lyndeborough10
- New Boston10
- Newport10
- Newton10
- Northwood10
- Nottingham10
- Pembroke10
- Pittsfield10
- Raymond10
- Sandwich10
- Suncook10
- Weare10
- Wilton10
- Andover9
- Boscawen9
- Canterbury9
- Contoocook9
- Durham9
- Enfield9
- Exeter9
- Farmington9
- Franklin9
- Gilmanton9
- Grafton9
- Grantham9
- Haverhill9
- Henniker9
- Hopkinton9
- Kensington9
- Lebanon9
- Lee9
- Lyme9
- Madbury9
- New Durham9
- New London9
- Newbury9
- Newmarket9
- Orford9
- Rochester9
- Salisbury9
- Springfield9
- Strafford9
- Sunapee9
- Webster9
- Wilmot9
- Alexandria8
- Ashland8
- Belmont8
- Bridgewater8
- Bristol8
- Danbury8
- Hampton Falls8
- Hill8
- Holderness8
- Meredith8
- Northfield8
- Plymouth8
- Rumney8
- Sanbornton8
- Seabrook8
- Somersworth8
- Stratham Station8
- Tilton8
- Tilton-Northfield8
- Wolfeboro8
- Center Harbor7
- Greenland7
- Hampton7
- Hampton Beach7
- North Hampton7
- Rollinsford7
- Sanbornville7
- Wakefield7
- Moultonborough5
- North Haverhill5
- North Woodstock5
- Ossipee5
- Thornton5
- Tuftonboro5
- Woodstock5
- Woodsville5
- Berlin4
- Colebrook4
- Freedom4
- Gorham4
- Groveton4
- Jackson4
- Jefferson4
- Lancaster4
- Madison4
- Milan4
- New Castle4
- North Conway4
- Northumberland4
- Randolph4
- Stratford4
- Tamworth4
- Troy4
- Whitefield4
AQI US, Metric