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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 | North Reading | 54 |
| 2 | Otis | 40 |
| 3 | Brockton | 38 |
| 4 | Fall River | 38 |
| 5 | Sandwich | 36 |
| 6 | Ware | 36 |
| 7 | Lynn | 35 |
| 8 | Pittsfield | 35 |
| 9 | Amesbury | 34 |
| 10 | Williamstown | 34 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
185 Contributors
See all
LIVE AQI CITY RANKING
Real-time Massachusetts
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Swansea | 6 |
| 2 | Edgartown | 10 |
| 3 | Townsend | 10 |
| 4 | Dracut | 11 |
| 5 | Holbrook | 11 |
| 6 | Nantucket | 11 |
| 7 | Somerset | 11 |
| 8 | Freetown | 12 |
| 9 | Middleborough | 12 |
| 10 | Oak Bluffs | 12 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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The latest air quality news and resources.
Massachusetts air quality data attribution
185Contributors
Government Contributor
- Alex Vandiver
1 station
- IQAir community Member
1 station
- Kathie Tryon
1 station
- Rowley MA Dodge
1 station
4 Individual Contributors
- 180 Anonymous contributors
180 stations
180 Anonymous Contributors
Which is the most polluted city in Massachusetts?
- North Reading 54
- Barnstable 40
- Otis 40
- Boxford 39
- Danvers 39
- Middleton 39
- Topsfield 39
- Aquinnah 38
- Beverly 38
- Beverly Cove 38
- Brockton 38
- Burlington 38
- Fairhaven 38
- Fall River 38
- Groveland 38
- Haverhill 38
- Lynnfield 38
- Methuen 38
- North Andover 38
- Pinehurst 38
- Reading 38
- South Peabody 38
- Stoneham 38
- Tewksbury 38
- Wenham 38
- Wilmington 38
- Adams 37
- Agawam 37
- Ashburnham 37
- Ashby 37
- Ashfield 37
- Becket 37
- Belmont 37
- Berlin 37
- Bernardston 37
- Bolton 37
- Boxborough 37
- Boylston 37
- Charlemont 37
- Chesterfield 37
- Clinton 37
- Cochituate 37
- Colrain 37
- Conway 37
- Dalton 37
- Devens 37
- Dunstable 37
- East Pepperell 37
- Everett 37
- Fitchburg 37
- Framingham 37
- Framingham Center 37
- Granville 37
- Groton 37
- Hadley 37
- Hatfield 37
- Hinsdale 37
- Hudson 37
- Jamaica Plain 37
- Lanesborough 37
- Lenox 37
- Leominster 37
- Lincoln 37
- Littleton Common 37
- Lowell 37
- Lunenburg 37
- Malden 37
- Marlborough 37
- Millers Falls 37
- Montague 37
- Nahant 37
- Revere 37
- Richmond 37
- Sheffield 37
- Shelburne 37
- Shirley 37
- South Ashburnham 37
- South Boston 37
- South Deerfield 37
- South Lancaster 37
- Southampton 37
- Southwick 37
- Sterling 37
- Sudbury 37
- Turners Falls 37
- Tyngsboro 37
- Watertown 37
- Wayland 37
- West Concord 37
- West Newbury 37
- West Springfield 37
- West Stockbridge 37
- Westford 37
- Westhampton 37
- Westminster 37
- Whately 37
- Williamsburg 37
- Winchester 37
- Winthrop 37
- Amherst Center 36
- Ashland 36
- Athol 36
- Auburn 36
- Baldwinville 36
- Belchertown 36
- Bondsville 36
- Brimfield 36
- Cordaville 36
- Dedham 36
- Dover 36
- East Brookfield 36
- Erving 36
- Fiskdale 36
- Gardner 36
- Granby 36
- Hamilton 36
- Hampden 36
- Hardwick 36
- Holliston 36
- Hopkinton 36
- Housatonic 36
- Hubbardston 36
- Ipswich 36
- Lee 36
- Leicester 36
- Leverett 36
- Ludlow 36
- Millbury 36
- Monson 36
- Monson Center 36
- North Amherst 36
- North Brookfield 36
- North Chicopee 36
- Northfield 36
- Norwood 36
- Oakham 36
- Orange 36
- Palmer 36
- Paxton 36
- Pelham 36
- Phillipston 36
- Princeton 36
- Royalston 36
- Rutland 36
- Sandwich 36
- Shutesbury 36
- South Amherst 36
- South Hadley 36
- Spencer 36
- Stockbridge 36
- Three Rivers 36
- Wales 36
- Ware 36
- Warren 36
- Wendell 36
- West Boylston 36
- West Brookfield 36
- Westborough 36
- Wilbraham 36
- Winchendon 36
- Charlton 35
- Douglas 35
- Dudley 35
- East Douglas 35
- Grafton 35
- Holland 35
- Hopedale 35
- Lynn 35
- Medway 35
- Mendon 35
- Millis 35
- Millis-Clicquot 35
- North Chelmsford 35
- Northbridge 35
- Pittsfield 35
- Salisbury 35
- Southbridge 35
- Sturbridge 35
- Sutton 35
- Upton 35
- Walpole 35
- Webster 35
- Whitinsville 35
- Amesbury 34
- Canton 34
- Essex 34
- Franklin 34
- Hull 34
- Newburyport 34
- Norfolk 34
- Williamstown 34
- Blackstone 33
- Millville 33
- Roxbury 33
- Wrentham 33
- Avon 32
- Foxborough 32
- Mansfield 32
- Mansfield Center 32
- Plainville 32
- Randolph 32
- Springfield 32
- Stoughton 32
- Easton 31
- Hingham 31
- Manchester-by-the-Sea 31
- North Attleborough Center 31
- Andover 30
- Bedford 30
- Chelmsford 30
- Chelsea 30
- Merrimac 30
- Norton 30
- Norton Center 30
- Rockland 30
- Stow 30
- Abington 29
- Billerica 29
- Easthampton 29
- Great Barrington 29
- Maynard 29
- North Seekonk 29
- Shrewsbury 29
- Weston 29
- Worcester 29
- Barre 28
- Gloucester 28
- Medford 28
- Northampton 28
- Raynham 28
- Rockport 28
- Saugus 28
- Somerville 28
- Whitman 28
- Woburn 28
- Amherst 27
- Arlington 27
- Bridgewater 27
- Brookline 27
- Carlisle 27
- Chicopee 27
- Cohasset 27
- East Bridgewater 27
- Lexington 27
- Rehoboth 27
- Seekonk 27
- Swampscott 27
- Taunton 27
- Uxbridge 27
- Wakefield 27
- Boston 26
- Holden 26
- North Scituate 26
- Pepperell 26
- Raynham Center 26
- West Bridgewater 26
- Berkley 25
- Cambridge 25
- Dighton 25
- Greenfield 25
- Holyoke 25
- Medfield 25
- Melrose 25
- North Pembroke 25
- Quincy 25
- Halifax 24
- Lancaster 24
- Marshfield Hills 24
- Milton 24
- Natick 24
- North Adams 24
- Rowley 24
- Wellesley 24
- Assonet 23
- Bellingham 23
- Marshfield 23
- Middleborough Center 23
- North Lakeville 23
- Ocean Grove 23
- Plympton 23
- Duxbury 22
- Green Harbor-Cedar Crest 22
- Kingston 22
- Milford 22
- Ocean Bluff-Brant Rock 22
- South Duxbury 22
- Waltham 22
- Weymouth 22
- Carver 21
- Hanson 21
- North Plymouth 21
- Norwell 21
- Sharon 21
- Sherborn 21
- Sunderland 21
- Attleboro 20
- North Westport 20
- Plymouth 20
- Templeton 20
- Acushnet Center 19
- Braintree 19
- Buckland 19
- Head of Westport 19
- Rochester 19
- Shelburne Falls 19
- Smith Mills 19
- West Wareham 19
- Bliss Corner 18
- Concord 18
- Longmeadow 18
- Needham 18
- New Bedford 18
- Newton 18
- Peabody 18
- Provincetown 18
- Salem 18
- Wareham Center 18
- Weweantic 18
- White Island Shores 18
- Bourne 17
- Buzzards Bay 17
- Lawrence 17
- Marion 17
- Marion Center 17
- Mattapoisett 17
- Mattapoisett Center 17
- Onset 17
- Southborough 17
- Westfield 17
- Acton 16
- Gill 16
- Monument Beach 16
- Northborough 16
- Pocasset 16
- Sagamore 16
- Truro 16
- Cotuit 15
- East Falmouth 15
- East Sandwich 15
- Falmouth 15
- Forestdale 15
- Hanover 15
- Marstons Mills 15
- Mashpee 15
- New Marlborough 15
- North Falmouth 15
- Osterville 15
- Teaticket 15
- Wellfleet 15
- West Barnstable 15
- West Falmouth 15
- West Tisbury 15
- Acushnet 14
- Ayer 14
- Centerville 14
- Dennis 14
- East Dennis 14
- East Longmeadow 14
- Eastham 14
- Harvard 14
- Hyannis 14
- North Eastham 14
- Oxford 14
- Vineyard Haven 14
- West Yarmouth 14
- Yarmouth 14
- Yarmouth Port 14
- Brewster 13
- Dennis Port 13
- Harwich 13
- Harwich Center 13
- Harwich Port 13
- Marblehead 13
- Northwest Harwich 13
- Scituate 13
- South Dennis 13
- South Yarmouth 13
- West Dennis 13
- Westwood 13
- East Harwich 12
- Freetown 12
- Middleborough 12
- Oak Bluffs 12
- Orleans 12
- Dracut 11
- Holbrook 11
- Nantucket 11
- Somerset 11
- West Chatham 11
- Edgartown 10
- Townsend 10
- Swansea 6
- Chatham 0
AQI US, Metric