Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 09:43, Oct 02
Live most polluted city ranking
Real-time Connecticut most polluted city ranking
Wildfires in Connecticut
Real-time information
Active fires
--
Learn more about global air quality
Which is the most polluted city in Connecticut?
- New Canaan280
- Coventry65
- Plainfield64
- Windsor61
- Hamden58
- Danbury56
- Oxford56
- Greenwich55
- Trumbull55
- West Hartford55
- Bolton54
- Byram54
- Conning Towers-Nautilus Park54
- Gales Ferry54
- Long Hill, Southeastern Connecticut County54
- Mashantucket54
- Moosup54
- Mystic54
- New London54
- Niantic54
- Noank54
- Old Mystic54
- Pawcatuck54
- Poquonock Bridge54
- Baltic53
- Clinton53
- Cos Cob53
- Danielson53
- Darien Downtown53
- East Brooklyn53
- East Hartford53
- Essex Village53
- Fenwick53
- Glenville53
- Greenwich town53
- Jewett City53
- Lisbon53
- Norwich53
- Old Greenwich53
- Old Lyme53
- Old Saybrook Center53
- Oxoboxo River53
- Pemberwick53
- Plainfield Village53
- Riverside53
- Rock Ridge53
- Salem53
- Saybrook Manor53
- Sherman53
- Southeastern Connecticut53
- Wauregan53
- Westbrook Center53
- Branford Center52
- Cannondale52
- Chester Center52
- Colchester52
- Deep River Center52
- Glastonbury52
- Greater Bridgeport52
- Greens Farms52
- Guilford Center52
- Lordship52
- Lower Connecticut River Valley52
- Madison52
- Madison Center52
- Mechanicsville52
- Milford52
- Moodus52
- Newtown52
- Northeastern Connecticut52
- Norwalk52
- Orange52
- Oronoque52
- Pomfret52
- Saugatuck52
- South Central Connecticut52
- South Windham52
- Southport52
- Stamford52
- Stratford52
- Trumbull Center52
- West Haven52
- Weston52
- Westport52
- Wilton Center52
- Winchester52
- Woodmont52
- Ansonia51
- Derby51
- Durham51
- East Hampton51
- Fairfield51
- Higganum51
- Mansfield Center51
- North Grosvenor Dale51
- North Haven51
- Northford51
- Quasset Lake51
- Quinnipiac University51
- Redding Center51
- Ridgefield51
- South Woodstock51
- Tashua51
- Wallingford Center51
- West Mountain51
- Western Connecticut51
- Willimantic51
- Woodbridge51
- Hartford50
- Killingly50
- Quinebaug50
- Redding50
- Wallingford50
- Berlin49
- East Haven49
- Hebron49
- Lake Pocotopaug49
- Middletown49
- Seymour49
- Terramuggus49
- Tolland49
- Ashford48
- Bethel48
- Cheshire Village48
- Coventry Lake48
- Mansfield48
- Meriden48
- Portland48
- Sandy Hook48
- South Coventry48
- Storrs48
- Bridgeport47
- Cromwell47
- Glastonbury Center47
- Kensington47
- Middlebury47
- Naugatuck47
- Naugatuck Valley47
- Plantsville47
- Prospect47
- Bigelow Corners46
- Heritage Village46
- Manchester46
- New Britain46
- Newington46
- Oakville46
- Southington46
- Watertown46
- Wethersfield46
- Woodbury Center46
- Lebanon45
- New Haven45
- Plainville45
- Plymouth45
- Rockville45
- Shelton45
- Stafford45
- Stafford Springs45
- Bethlehem Village44
- Bristol44
- Capitol44
- Crystal Lake44
- Ellington44
- Farmington44
- New Milford44
- South Windsor44
- Terryville44
- Thomaston44
- Blue Hills43
- Broad Brook43
- Gaylordsville43
- Somers43
- Washington43
- Windsor Locks43
- Canton42
- Canton Valley42
- Collinsville42
- Hazardville42
- Litchfield42
- New Hartford Center42
- New Preston42
- Northwest Harwinton42
- Northwest Hills42
- Riverton42
- Salmon Brook42
- Sherwood Manor42
- Simsbury Center42
- Southwood Acres42
- Suffield Depot42
- Tariffville42
- Thompsonville42
- Torrington42
- Torrington town42
- Weatogue42
- West Simsbury42
- Winsted42
- Canaan41
- North Granby41
- Deep River40
- Canterbury39
- Killingworth39
- Simsbury39
- Waterbury39
- Guilford38
- Cornwall37
- Cheshire35
- Milford town35
- Montville34
- Branford33
- Enfield33
- Old Saybrook33
- Lyme32
- Woodbury27
- Groton25
- Waterford22
- Colebrook7
- Waterford town1
