Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 15:19, Sep 27
Live most polluted city ranking
Real-time Connecticut most polluted city ranking
Wildfires in Connecticut
Real-time information
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Which is the most polluted city in Connecticut?
- Groton37
- Middletown33
- East Hartford31
- Cornwall30
- New Haven29
- Simsbury28
- Danbury27
- Killingly26
- Old Saybrook26
- Waterford24
- Waterbury21
- Hartford20
- Hamden17
- Fairfield15
- Greenwich13
- Plainfield11
- Byram9
- Cos Cob9
- Darien Downtown9
- Glenville9
- Greens Farms9
- Greenwich town9
- Norwalk9
- Old Greenwich9
- Pemberwick9
- Riverside9
- Rock Ridge9
- Saugatuck9
- Southport9
- Stamford9
- Westport9
- Coventry8
- Greater Bridgeport8
- Lordship8
- Stratford8
- Berlin7
- Cannondale7
- East Haven7
- Milford7
- Milford town7
- Montville7
- Sherman7
- Trumbull Center7
- Weston7
- Wilton Center7
- Windsor7
- Woodmont7
- Ansonia6
- Ashford6
- Baltic6
- Bethel6
- Bethlehem Village6
- Bigelow Corners6
- Blue Hills6
- Branford Center6
- Bristol6
- Broad Brook6
- Canaan6
- Canterbury6
- Canton6
- Canton Valley6
- Capitol6
- Cheshire6
- Cheshire Village6
- Chester Center6
- Clinton6
- Colchester6
- Collinsville6
- Conning Towers-Nautilus Park6
- Coventry Lake6
- Cromwell6
- Crystal Lake6
- Danielson6
- Deep River6
- Deep River Center6
- Derby6
- Durham6
- East Brooklyn6
- East Hampton6
- Ellington6
- Essex Village6
- Farmington6
- Fenwick6
- Gales Ferry6
- Gaylordsville6
- Glastonbury Center6
- Guilford6
- Guilford Center6
- Hazardville6
- Hebron6
- Heritage Village6
- Higganum6
- Jewett City6
- Kensington6
- Killingworth6
- Lake Pocotopaug6
- Lebanon6
- Lisbon6
- Litchfield6
- Long Hill, Southeastern Connecticut County6
- Lower Connecticut River Valley6
- Lyme6
- Madison6
- Madison Center6
- Manchester6
- Mansfield Center6
- Mashantucket6
- Mechanicsville6
- Meriden6
- Middlebury6
- Moodus6
- Moosup6
- Mystic6
- Naugatuck6
- Naugatuck Valley6
- New Britain6
- New Hartford Center6
- New London6
- New Milford6
- New Preston6
- Newington6
- Niantic6
- Noank6
- North Granby6
- North Grosvenor Dale6
- North Haven6
- Northeastern Connecticut6
- Northford6
- Northwest Harwinton6
- Northwest Hills6
- Norwich6
- Oakville6
- Old Lyme6
- Old Mystic6
- Old Saybrook Center6
- Orange6
- Oronoque6
- Oxoboxo River6
- Pawcatuck6
- Plainfield Village6
- Plainville6
- Plantsville6
- Plymouth6
- Pomfret6
- Poquonock Bridge6
- Portland6
- Prospect6
- Quasset Lake6
- Quinebaug6
- Quinnipiac University6
- Redding6
- Redding Center6
- Ridgefield6
- Riverton6
- Rockville6
- Salem6
- Salmon Brook6
- Sandy Hook6
- Saybrook Manor6
- Seymour6
- Sherwood Manor6
- Simsbury Center6
- Somers6
- South Central Connecticut6
- South Coventry6
- South Windham6
- South Windsor6
- South Woodstock6
- Southeastern Connecticut6
- Southwood Acres6
- Stafford6
- Stafford Springs6
- Storrs6
- Suffield Depot6
- Tariffville6
- Tashua6
- Terramuggus6
- Terryville6
- Thomaston6
- Thompsonville6
- Torrington6
- Torrington town6
- Wallingford6
- Wallingford Center6
- Waterford town6
- Watertown6
- Wauregan6
- Weatogue6
- West Haven6
- West Simsbury6
- Westbrook Center6
- Western Connecticut6
- Wethersfield6
- Willimantic6
- Winchester6
- Windsor Locks6
- Winsted6
- Woodbridge6
- Woodbury Center6
- Newtown5
- Southington5
- Mansfield3
- Shelton3
- West Hartford3
- Woodbury3
- Bridgeport2
- Colebrook2
- Glastonbury2
- Trumbull2
- Washington2
- Bolton1
- Branford1
- Enfield1
- New Canaan1
- Oxford1
- Tolland1
- West Mountain0
