Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 14:35, Oct 21
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?
- Cornwall26
- Shelton24
- East Hartford23
- Montville23
- Trumbull23
- Waterbury23
- Hamden22
- Groton21
- Fairfield20
- New Haven20
- Windsor20
- Deep River19
- Mansfield19
- Oxford19
- Pomfret19
- Sherman19
- Southington19
- Winchester19
- Bolton18
- Bridgeport18
- Glastonbury18
- Hartford18
- Tolland18
- West Hartford18
- Woodbury18
- Berlin17
- Branford17
- Canterbury17
- Killingworth17
- Lebanon17
- Middletown16
- Washington16
- Enfield15
- Hebron15
- Lyme14
- Milford town14
- Danbury13
- Guilford13
- Byram12
- Cos Cob12
- Darien Downtown12
- Glenville12
- Greenwich town12
- Old Greenwich12
- Pemberwick12
- Riverside12
- Rock Ridge12
- Waterford12
- Norwalk11
- Saugatuck11
- New Canaan10
- Ridgefield10
- West Mountain10
- Westport10
- Wilton Center10
- Canaan9
- Cannondale9
- Greens Farms9
- Southport9
- Western Connecticut9
- Weston9
- Ansonia8
- Ashford8
- Bethel8
- Bethlehem Village8
- Bigelow Corners8
- Blue Hills8
- Branford Center8
- Bristol8
- Broad Brook8
- Canton8
- Canton Valley8
- Capitol8
- Cheshire8
- Cheshire Village8
- Chester Center8
- Colchester8
- Collinsville8
- Coventry8
- Coventry Lake8
- Cromwell8
- Crystal Lake8
- Deep River Center8
- Derby8
- Durham8
- East Hampton8
- Ellington8
- Farmington8
- Gaylordsville8
- Glastonbury Center8
- Greater Bridgeport8
- Guilford Center8
- Hazardville8
- Heritage Village8
- Higganum8
- Lake Pocotopaug8
- Litchfield8
- Lordship8
- Lower Connecticut River Valley8
- Madison8
- Madison Center8
- Manchester8
- Mansfield Center8
- Mechanicsville8
- Meriden8
- Middlebury8
- Milford8
- Moodus8
- Naugatuck8
- Naugatuck Valley8
- New Britain8
- New Hartford Center8
- New Milford8
- New Preston8
- Newington8
- Newtown8
- North Granby8
- North Grosvenor Dale8
- North Haven8
- Northeastern Connecticut8
- Northford8
- Northwest Harwinton8
- Northwest Hills8
- Oakville8
- Orange8
- Oronoque8
- Plainville8
- Plantsville8
- Plymouth8
- Portland8
- Prospect8
- Quinebaug8
- Quinnipiac University8
- Redding Center8
- Riverton8
- Rockville8
- Salmon Brook8
- Sandy Hook8
- Seymour8
- Sherwood Manor8
- Simsbury Center8
- Somers8
- South Central Connecticut8
- South Coventry8
- South Windham8
- South Windsor8
- South Woodstock8
- Stafford8
- Stafford Springs8
- Stamford8
- Storrs8
- Stratford8
- Suffield Depot8
- Tariffville8
- Tashua8
- Terramuggus8
- Terryville8
- Thomaston8
- Thompsonville8
- Torrington8
- Torrington town8
- Trumbull Center8
- Wallingford Center8
- Watertown8
- Weatogue8
- West Haven8
- West Simsbury8
- Wethersfield8
- Willimantic8
- Winsted8
- Woodbury Center8
- Woodmont8
- Clinton7
- Essex Village7
- Woodbridge7
- Baltic6
- Conning Towers-Nautilus Park6
- Danielson6
- East Brooklyn6
- Fenwick6
- Gales Ferry6
- Jewett City6
- Kensington6
- Killingly6
- Lisbon6
- Long Hill, Southeastern Connecticut County6
- Mashantucket6
- Moosup6
- Mystic6
- New London6
- Niantic6
- Noank6
- Norwich6
- Old Lyme6
- Old Mystic6
- Old Saybrook6
- Old Saybrook Center6
- Oxoboxo River6
- Pawcatuck6
- Plainfield Village6
- Poquonock Bridge6
- Quasset Lake6
- Salem6
- Saybrook Manor6
- Simsbury6
- Southeastern Connecticut6
- Southwood Acres6
- Wallingford6
- Waterford town6
- Wauregan6
- Westbrook Center6
- Windsor Locks6
- East Haven4
- Colebrook3
- Plainfield3
- Redding1
- Greenwich0
