Air quality in Massachusetts
Air quality index (AQI) and PM2.5 air pollution in Massachusetts
LIVE AQI CITY RANKING
Real-time Massachusetts
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Townsend | 75 |
| 2 | Westwood | 67 |
| 3 | Williamstown | 65 |
| 4 | Concord | 62 |
| 5 | Stoneham | 61 |
| 6 | Somerville | 60 |
| 7 | North Adams | 59 |
| 8 | Waltham | 59 |
| 9 | Attleboro | 58 |
| 10 | Greenfield | 55 |
(local time)
SEE WORLD AQI RANKINGAir Quality contributors Sources
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Real-time Massachusetts
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | West Concord | 0 |
| 2 | Nantucket | 10 |
| 3 | Aquinnah | 17 |
| 4 | North Chelmsford | 17 |
| 5 | Chelmsford | 21 |
| 6 | Ayer | 25 |
| 7 | Amesbury | 29 |
| 8 | Brockton | 29 |
| 9 | Boxborough | 30 |
| 10 | Lynn | 33 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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Unhealthy for sensitive groups
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How to best protect from air pollution?
Massachusetts air quality data sources
Which is the most polluted city in Massachusetts?
- Townsend75
- Westwood67
- Williamstown65
- Concord62
- Stoneham61
- Somerville60
- North Adams59
- Waltham59
- Attleboro58
- Greenfield55
- Lexington54
- Freetown54
- Cambridge53
- Rehoboth53
- Groton51
- Otis51
- Roxbury50
- Boston48
- Springfield48
- Southampton46
- Lenox46
- Lee46
- Lanesborough46
- Westfield46
- Stockbridge46
- Dalton46
- Hinsdale46
- Becket46
- Bellingham46
- Adams46
- Granville46
- Southwick46
- Fall River45
- Natick44
- Leominster42
- Williamsburg42
- Westford42
- Chesterfield42
- Richmond42
- Bolton42
- Cochituate42
- Maynard42
- Lancaster42
- Marlborough42
- Stow42
- Cordaville42
- Sudbury42
- Sterling42
- Housatonic42
- West Stockbridge42
- South Lancaster42
- Devens42
- Harvard42
- Ashland42
- Lunenburg42
- Southborough42
- Wayland42
- Littleton Common42
- Carlisle42
- Easthampton42
- Shirley42
- Framingham Center42
- Acton42
- Framingham42
- Pittsfield41
- Whately38
- Franklin38
- Watertown38
- Agawam38
- Granby38
- East Longmeadow38
- Turners Falls38
- Wellesley38
- Foxborough38
- Hadley38
- Pinehurst38
- Hamilton38
- Dover38
- Amherst38
- Wrentham38
- Hatfield38
- Sharon38
- Norwood38
- West Springfield38
- Holliston38
- Holyoke38
- Hopedale38
- Hopkinton38
- Dedham38
- Hudson38
- Sunderland38
- Westborough38
- Jamaica Plain38
- Conway38
- Shelburne38
- Clinton38
- Shelburne Falls38
- Chicopee38
- Northborough38
- Northampton38
- Leverett38
- Weston38
- Lincoln38
- Canton38
- Sherborn38
- Amherst Center38
- Ludlow38
- Burlington38
- Shrewsbury38
- Buckland38
- Walpole38
- Boylston38
- South Amherst38
- Billerica38
- Berlin38
- Wilmington38
- Belmont38
- Bedford38
- Medfield38
- Medway38
- Mendon38
- North Chicopee38
- Winchester38
- Milford38
- Millers Falls38
- Millis38
- Millis-Clicquot38
- Montague38
- Ashfield38
- South Hadley38
- Arlington38
- Needham38
- South Deerfield38
- New Marlborough38
- Newton38
- Norfolk38
- Woburn38
- North Amherst38
- Tewksbury38
- Westhampton37
- Haverhill37
- Worcester37
- Salisbury35
- Lowell34
- Longmeadow34
- Charlemont34
- North Andover34
- Methuen34
- Colrain34
- Dracut34
- Tyngsboro34
- Andover34
- Dunstable34
- Lawrence34
- Swampscott33
- Lynn33
- Boxborough30
- Blackstone29
- East Pepperell29
- Leicester29
- Athol29
- Ware29
- Amesbury29
- Easton29
- Bernardston29
- Erving29
- Belchertown29
- Douglas29
- Uxbridge29
- Fitchburg29
- Upton29
- Mansfield29
- North Attleborough Center29
- South Ashburnham29
- Mansfield Center29
- Holden29
- Sutton29
- Shutesbury29
- Whitinsville29
- Templeton29
- North Seekonk29
- Westminster29
- Spencer29
- West Boylston29
- Northbridge29
- Northfield29
- Wendell29
- Norton29
- Norton Center29
- Hubbardston29
- Gardner29
- Sheffield29
- Gill29
- Orange29
- East Douglas29
- Grafton29
- Paxton29
- Pelham29
- Pepperell29
- Phillipston29
- Brockton29
- Baldwinville29
- Plainville29
- Rutland29
- Great Barrington29
- Princeton29
- Millbury29
- Middleborough Center25
- Braintree25
- Nahant25
- Hampden25
- Topsfield25
- Three Rivers25
- Hardwick25
- Everett25
- South Boston25
- Wales25
- Dighton25
- Taunton25
- Wakefield25
- Ashby25
- Lynnfield25
- North Brookfield25
- Malden25
- Stoughton25
- Swansea25
- Chelsea25
- Somerset25
- Bridgewater25
- Holbrook25
- North Reading25
- West Newbury25
- Abington25
- West Bridgewater25
- East Bridgewater25
- Ashburnham25
- Brookline25
- Avon25
- South Peabody25
- Wilbraham25
- Weymouth25
- Medford25
- Hull25
- Melrose25
- Oakham25
- Ayer25
- Ocean Grove25
- Seekonk25
- Merrimac25
- Saugus25
- Bondsville25
- Middleborough25
- Salem25
- Palmer25
- Winthrop25
- Peabody25
- Middleton25
- Whitman25
- Danvers25
- Winchendon25
- Groveland25
- Boxford25
- Millville25
- Royalston25
- Milton25
- Monson25
- Rockland25
- Quincy25
- Randolph25
- Raynham25
- Raynham Center25
- Reading25
- Monson Center25
- Revere25
- Barre25
- Warren21
- Brimfield21
- Charlton21
- Newburyport21
- Auburn21
- Southbridge21
- Sturbridge21
- Holland21
- Fiskdale21
- Oxford21
- Webster21
- East Brookfield21
- West Brookfield21
- Chelmsford21
- Dudley21
- Aquinnah17
- North Chelmsford17
- Nantucket10
- Hingham9
- Hanson9
- Hanover9
- Scituate9
- Essex9
- Norwell9
- North Scituate9
- Wenham9
- Marshfield Hills9
- Marshfield9
- Marblehead9
- Manchester-by-the-Sea9
- Cohasset9
- North Pembroke9
- Ipswich9
- Beverly9
- Rowley9
- Beverly Cove9
- Truro5
- Sandwich5
- Marstons Mills5
- Yarmouth5
- Rochester5
- Marion Center5
- Marion5
- Onset5
- Ocean Bluff-Brant Rock5
- Kingston5
- Oak Bluffs5
- Pocasset5
- Hyannis5
- Northwest Harwich5
- North Westport5
- Head of Westport5
- Harwich Port5
- Teaticket5
- Harwich Center5
- Harwich5
- Plympton5
- North Plymouth5
- Halifax5
- Provincetown5
- Green Harbor-Cedar Crest5
- Gloucester5
- Forestdale5
- Plymouth5
- Vineyard Haven5
- Falmouth5
- Fairhaven5
- Smith Mills5
- Edgartown5
- Acushnet Center5
- Wareham Center5
- North Lakeville5
- East Sandwich5
- East Harwich5
- North Falmouth5
- East Falmouth5
- Wellfleet5
- East Dennis5
- Acushnet5
- West Barnstable5
- Sagamore5
- Duxbury5
- Rockport5
- New Bedford5
- Assonet5
- West Dennis5
- West Falmouth5
- South Dennis5
- Dennis Port5
- Dennis5
- West Tisbury5
- West Wareham5
- West Yarmouth5
- Cotuit5
- South Duxbury5
- Osterville5
- Monument Beach5
- Mattapoisett Center5
- Centerville5
- Carver5
- Weweantic5
- Buzzards Bay5
- South Yarmouth5
- White Island Shores5
- Brewster5
- Bourne5
- Bliss Corner5
- Mattapoisett5
- Mashpee5
- Berkley5
- Barnstable5
- Yarmouth Port5
- Chatham0
- West Concord0
- West Chatham0
- Eastham0
- North Eastham0
- Orleans0
