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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 | Attleboro | 53 |
| 2 | Chelsea | 52 |
| 3 | Medford | 49 |
| 4 | Somerville | 48 |
| 5 | Wakefield | 47 |
| 6 | Melrose | 46 |
| 7 | Springfield | 42 |
| 8 | Arlington | 41 |
| 9 | Saugus | 41 |
| 10 | West Bridgewater | 41 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
179 Contributors
See all
LIVE AQI CITY RANKING
Real-time Massachusetts
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Scituate | 2 |
| 2 | Hanover | 3 |
| 3 | Middleborough | 4 |
| 4 | Buckland | 6 |
| 5 | Acushnet | 8 |
| 6 | Edgartown | 8 |
| 7 | Freetown | 9 |
| 8 | Swansea | 9 |
| 9 | Shelburne Falls | 11 |
| 10 | Gill | 12 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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Unhealthy for sensitive groups
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News
The latest air quality news and resources.
Massachusetts air quality data attribution
179Contributors
Government Contributor
- Jiarong Qi
1 station
Educational Contributor
- Alex Vandiver
1 station
- IQAir community Member
1 station
- Kathie Tryon
1 station
- Rowley MA Dodge
1 station
4 Individual Contributors
173 Anonymous contributors173 stations
173 Anonymous Contributors
Which is the most polluted city in Massachusetts?
- Attleboro 53
- Chelsea 52
- Medford 49
- Somerville 48
- Wakefield 47
- Melrose 46
- Springfield 42
- Arlington 41
- Saugus 41
- West Bridgewater 41
- Roxbury 40
- Aquinnah 38
- Lynn 38
- Woburn 38
- Boston 37
- Worcester 37
- Cambridge 36
- Holyoke 35
- Lexington 35
- Newton 35
- Swampscott 35
- Uxbridge 35
- Andover 34
- Bedford 34
- Groveland 34
- Haverhill 34
- Lowell 34
- Medfield 34
- Methuen 34
- North Andover 34
- Tewksbury 34
- Tyngsboro 34
- Boxford 33
- Burlington 33
- Dunstable 33
- Middleton 33
- Pinehurst 33
- Wellesley 33
- West Newbury 33
- Westford 33
- Wilmington 33
- Amesbury 32
- Belmont 32
- Cochituate 32
- Danvers 32
- Fairhaven 32
- Lincoln 32
- Littleton Common 32
- Lynnfield 32
- Malden 32
- Merrimac 32
- Pittsfield 32
- Quincy 32
- Reading 32
- Salisbury 32
- Stoneham 32
- Topsfield 32
- Ware 32
- Watertown 32
- Wayland 32
- West Concord 32
- Winchester 32
- Agawam 31
- Boxborough 31
- Dover 31
- East Pepperell 31
- Everett 31
- Framingham 31
- Framingham Center 31
- Groton 31
- Hampden 31
- Jamaica Plain 31
- Revere 31
- South Boston 31
- South Peabody 31
- Sudbury 31
- Wenham 31
- Winthrop 31
- Ashland 30
- Barre 30
- Beverly 30
- Beverly Cove 30
- Canton 30
- Chelmsford 30
- Cordaville 30
- Dedham 30
- Easthampton 30
- Foxborough 30
- Franklin 30
- Holliston 30
- Hopkinton 30
- Hudson 30
- Ipswich 30
- Ludlow 30
- Marlborough 30
- Medway 30
- Millis 30
- Millis-Clicquot 30
- Monson 30
- Nahant 30
- Newburyport 30
- Norfolk 30
- Norwood 30
- Southwick 30
- Walpole 30
- West Springfield 30
- Wilbraham 30
- Wrentham 30
- Blackstone 29
- Bolton 29
- Bondsville 29
- Brimfield 29
- Devens 29
- East Douglas 29
- Holland 29
- Hopedale 29
- Mansfield 29
- Mansfield Center 29
- Mendon 29
- Millville 29
- Monson Center 29
- North Attleborough Center 29
- North Chicopee 29
- Northbridge 29
- Palmer 29
- Plainville 29
- Shirley 29
- Stoughton 29
- Three Rivers 29
- Wales 29
- Waltham 29
- Westborough 29
- Whitinsville 29
- Avon 28
- Barnstable 28
- Belchertown 28
- Berlin 28
- Boylston 28
- Clinton 28
- Douglas 28
- Dudley 28
- Easton 28
- Fiskdale 28
- Grafton 28
- Granby 28
- Granville 28
- Hull 28
- Millbury 28
- Norton 28
- Norton Center 28
- Randolph 28
- South Hadley 28
- South Lancaster 28
- Southampton 28
- Southbridge 28
- Sturbridge 28
- Sutton 28
- Upton 28
- Webster 28
- Westwood 28
- Weymouth 28
- Auburn 27
- Braintree 27
- Charlton 27
- East Brookfield 27
- Hamilton 27
- Hingham 27
- Leicester 27
- Maynard 27
- North Reading 27
- North Seekonk 27
- Peabody 27
- South Amherst 27
- Spencer 27
- Sterling 27
- Warren 27
- West Boylston 27
- West Brookfield 27
- Abington 26
- Amherst Center 26
- Essex 26
- Hadley 26
- Hardwick 26
- Leominster 26
- Lunenburg 26
- Natick 26
- North Adams 26
- North Brookfield 26
- Oakham 26
- Paxton 26
- Pelham 26
- Princeton 26
- Raynham 26
- Rehoboth 26
- Rockland 26
- Rutland 26
- Seekonk 26
- Whitman 26
- Bridgewater 25
- Chicopee 25
- East Bridgewater 25
- Fitchburg 25
- Greenfield 25
- Hanson 25
- Hatfield 25
- Milton 25
- North Amherst 25
- Northampton 25
- Raynham Center 25
- Rowley 25
- Shrewsbury 25
- Shutesbury 25
- Taunton 25
- Westhampton 25
- Berkley 24
- Cohasset 24
- Dighton 24
- Hubbardston 24
- Leverett 24
- Manchester-by-the-Sea 24
- Westminster 24
- Whately 24
- Ashby 23
- Bellingham 23
- Brockton 23
- Fall River 23
- Needham 23
- Ocean Grove 23
- South Deerfield 23
- Wendell 23
- Williamsburg 23
- Amherst 22
- Ashburnham 22
- Assonet 22
- Athol 22
- Baldwinville 22
- Conway 22
- Erving 22
- Falmouth 22
- Gardner 22
- Gloucester 22
- Halifax 22
- Middleborough Center 22
- Milford 22
- Millers Falls 22
- Montague 22
- North Lakeville 22
- North Pembroke 22
- North Scituate 22
- Orange 22
- Otis 22
- Phillipston 22
- Rockport 22
- South Ashburnham 22
- Carlisle 21
- Marshfield Hills 21
- Plympton 21
- Royalston 21
- Sharon 21
- Shelburne 21
- Turners Falls 21
- Weston 21
- Winchendon 21
- Bernardston 20
- Carver 20
- Duxbury 20
- Green Harbor-Cedar Crest 20
- Kingston 20
- Marshfield 20
- New Marlborough 20
- Northfield 20
- Norwell 20
- Ocean Bluff-Brant Rock 20
- Pepperell 20
- Plymouth 20
- Salem 20
- South Duxbury 20
- Ashfield 19
- Ayer 19
- Colrain 19
- Harvard 19
- North Plymouth 19
- North Westport 19
- Sheffield 19
- Sunderland 19
- Templeton 19
- Williamstown 19
- Brookline 18
- Chesterfield 18
- Dracut 18
- Head of Westport 18
- Acushnet Center 17
- Billerica 17
- Housatonic 17
- Lancaster 17
- Longmeadow 17
- New Bedford 17
- Northborough 17
- Oxford 17
- Rochester 17
- Smith Mills 17
- Southborough 17
- Stockbridge 17
- West Wareham 17
- Becket 16
- Bliss Corner 16
- Bourne 16
- East Longmeadow 16
- Holbrook 16
- Holden 16
- Lee 16
- Lenox 16
- Richmond 16
- Townsend 16
- Wareham Center 16
- West Stockbridge 16
- Weweantic 16
- Adams 15
- Charlemont 15
- Dalton 15
- Hinsdale 15
- Lanesborough 15
- Marion 15
- Marion Center 15
- Mattapoisett 15
- Mattapoisett Center 15
- Sandwich 15
- Stow 15
- White Island Shores 15
- Acton 14
- Concord 14
- Onset 14
- Buzzards Bay 13
- Lawrence 13
- Marblehead 13
- Monument Beach 13
- North Falmouth 13
- Oak Bluffs 13
- Pocasset 13
- Sherborn 13
- Westfield 13
- East Falmouth 12
- East Sandwich 12
- Forestdale 12
- Gill 12
- Great Barrington 12
- Nantucket 12
- Sagamore 12
- Somerset 12
- Teaticket 12
- West Falmouth 12
- Cotuit 11
- Marstons Mills 11
- Mashpee 11
- Provincetown 11
- Shelburne Falls 11
- Vineyard Haven 11
- West Tisbury 11
- Centerville 10
- Osterville 10
- West Barnstable 10
- Freetown 9
- Hyannis 9
- Swansea 9
- Truro 9
- Wellfleet 9
- Yarmouth Port 9
- Acushnet 8
- Brewster 8
- Dennis 8
- Dennis Port 8
- East Dennis 8
- Eastham 8
- Edgartown 8
- North Eastham 8
- Northwest Harwich 8
- South Dennis 8
- South Yarmouth 8
- West Dennis 8
- West Yarmouth 8
- Yarmouth 8
- East Harwich 7
- Harwich 7
- Harwich Center 7
- Harwich Port 7
- Orleans 7
- West Chatham 7
- Buckland 6
- North Chelmsford 5
- Middleborough 4
- Hanover 3
- Scituate 2
- Chatham 0
AQI US, Metric