Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 06:19, Sep 10
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?
- Canaan55
- Colebrook54
- Gaylordsville54
- Northwest Hills54
- Riverton54
- Winsted54
- Coventry53
- New Preston53
- Torrington53
- Torrington town53
- New Milford52
- North Granby52
- Washington52
- New Hartford Center51
- Litchfield50
- Bigelow Corners49
- Northwest Harwinton49
- Salmon Brook48
- Canton47
- Bethlehem Village45
- Canton Valley45
- West Simsbury45
- Collinsville44
- Groton44
- Hartford44
- Simsbury Center44
- Tariffville43
- Thomaston43
- East Hartford42
- Sherwood Manor42
- Suffield Depot42
- Thompsonville42
- Weatogue42
- New Haven41
- Plainfield41
- Woodbury Center41
- Bethel39
- Hamden39
- Hazardville39
- Heritage Village39
- Old Saybrook39
- Terryville39
- Waterbury39
- Watertown39
- Windsor Locks39
- Middletown38
- Plymouth38
- Windsor38
- Somers37
- Southwood Acres37
- Oakville36
- Bristol35
- Winchester35
- Blue Hills34
- Broad Brook34
- Farmington34
- Cornwall33
- Greenwich33
- Killingly33
- Middlebury33
- New Canaan33
- Sherman33
- Simsbury33
- Crystal Lake32
- Danbury32
- Ellington32
- Redding32
- Sandy Hook32
- South Windsor32
- Stafford32
- Stafford Springs32
- Bolton31
- Capitol31
- Plainville31
- Redding Center31
- Ridgefield31
- Rockville31
- Western Connecticut31
- Naugatuck Valley30
- Fairfield29
- New Britain29
- Newtown29
- Quinebaug29
- Trumbull29
- West Hartford29
- East Haven28
- Woodbury28
- Ashford27
- Manchester27
- Naugatuck27
- Newington27
- Cannondale26
- Glastonbury26
- Glenville26
- Greenwich town26
- Mansfield26
- North Grosvenor Dale26
- Oxford26
- Plantsville26
- Rock Ridge26
- Southington26
- Waterford26
- Wethersfield26
- Berlin25
- Essex Village25
- Kensington25
- Pemberwick25
- Prospect25
- Byram24
- Cos Cob24
- Coventry Lake24
- Glastonbury Center24
- Mechanicsville24
- Quasset Lake24
- South Woodstock24
- Stamford24
- Storrs24
- Tashua24
- Wilton Center24
- Cheshire Village23
- Cromwell23
- Pomfret23
- Riverside23
- Seymour23
- Shelton23
- South Coventry23
- Weston23
- Danielson22
- Darien Downtown22
- East Brooklyn22
- Mansfield Center22
- Meriden22
- Montville22
- Northeastern Connecticut22
- Norwalk22
- Old Greenwich22
- Portland22
- Tolland22
- Willimantic22
- Ansonia21
- Canterbury21
- Derby21
- Hebron21
- Moosup21
- Saugatuck21
- Terramuggus21
- Trumbull Center21
- Wauregan21
- West Mountain21
- Bridgeport20
- Lake Pocotopaug20
- Lebanon20
- Oronoque20
- South Windham20
- Westport20
- Branford19
- Deep River19
- East Hampton19
- Greens Farms19
- Killingworth19
- Plainfield Village19
- Quinnipiac University19
- Southport19
- Wallingford19
- Wallingford Center19
- Woodbridge19
- Colchester18
- Enfield18
- Greater Bridgeport18
- Higganum18
- Lyme18
- Baltic17
- Durham17
- Jewett City17
- Lisbon17
- Milford17
- North Haven17
- Northford17
- Orange17
- Stratford17
- Cheshire16
- Lordship16
- Lower Connecticut River Valley16
- Moodus16
- Norwich16
- Salem16
- South Central Connecticut16
- Southeastern Connecticut16
- West Haven16
- Woodmont16
- Branford Center15
- Chester Center15
- Clinton15
- Deep River Center15
- Gales Ferry15
- Guilford Center15
- Madison15
- Madison Center15
- Mashantucket15
- Niantic15
- Old Lyme15
- Oxoboxo River15
- Conning Towers-Nautilus Park14
- Fenwick14
- Long Hill, Southeastern Connecticut County14
- Mystic14
- New London14
- Old Mystic14
- Old Saybrook Center14
- Pawcatuck14
- Poquonock Bridge14
- Saybrook Manor14
- Westbrook Center14
- Noank13
- Guilford12
- Milford town11
- Waterford town1
