Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 22:47, Aug 11
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?
- Woodbury73
- Greenwich71
- Waterford town71
- Hamden69
- West Mountain69
- Norwich66
- Danbury64
- Fairfield64
- Old Saybrook64
- Byram60
- Coventry60
- New Canaan60
- Old Greenwich60
- Pemberwick60
- Cos Cob59
- Darien Downtown59
- Glenville59
- Norwalk59
- Pawcatuck59
- Riverside59
- Rock Ridge59
- Stamford59
- Trumbull59
- Bridgeport58
- Conning Towers-Nautilus Park58
- Fenwick58
- Gales Ferry58
- Greens Farms58
- Long Hill, Southeastern Connecticut County58
- Lordship58
- Mashantucket58
- Mystic58
- New London58
- Niantic58
- Noank58
- Old Lyme58
- Old Mystic58
- Old Saybrook Center58
- Oxoboxo River58
- Poquonock Bridge58
- Saugatuck58
- Saybrook Manor58
- Southport58
- Westbrook Center58
- Branford Center57
- Cannondale57
- Chester Center57
- Clinton57
- Deep River Center57
- Essex Village57
- Greater Bridgeport57
- Groton57
- Guilford Center57
- Lower Connecticut River Valley57
- Lyme57
- Madison Center57
- Milford57
- Oxford57
- Salem57
- South Central Connecticut57
- Southeastern Connecticut57
- Trumbull Center57
- Waterford57
- Weston57
- Wilton Center57
- Woodmont57
- Ansonia56
- Baltic56
- Bethel56
- Colchester56
- Deep River56
- Derby56
- Durham56
- Higganum56
- Jewett City56
- Lisbon56
- Milford town56
- Montville56
- Moodus56
- Newtown56
- North Haven56
- Northford56
- Orange56
- Oronoque56
- Quinnipiac University56
- Redding Center56
- Ridgefield56
- Seymour56
- Tashua56
- Wallingford56
- Wallingford Center56
- Waterbury56
- West Haven56
- Western Connecticut56
- Woodbridge56
- Berlin55
- Bethlehem Village55
- Bigelow Corners55
- Cheshire Village55
- East Hampton55
- Gaylordsville55
- Heritage Village55
- Killingworth55
- Lake Pocotopaug55
- Meriden55
- Middlebury55
- Moosup55
- Naugatuck55
- Naugatuck Valley55
- New Milford55
- Oakville55
- Plainfield Village55
- Plantsville55
- Portland55
- Prospect55
- Sandy Hook55
- Shelton55
- South Windham55
- Southington55
- Stratford55
- Washington55
- Watertown55
- Woodbury Center55
- Ashford54
- Blue Hills54
- Branford54
- Bristol54
- Canaan54
- Canton Valley54
- Capitol54
- Collinsville54
- Coventry Lake54
- Cromwell54
- Danielson54
- East Brooklyn54
- Farmington54
- Glastonbury Center54
- Guilford54
- Hebron54
- Kensington54
- Litchfield54
- Manchester54
- Mansfield Center54
- Mechanicsville54
- New Britain54
- New Hartford Center54
- New Preston54
- Newington54
- North Grosvenor Dale54
- Northeastern Connecticut54
- Northwest Harwinton54
- Northwest Hills54
- Plainville54
- Plymouth54
- Quasset Lake54
- South Coventry54
- South Windsor54
- South Woodstock54
- Storrs54
- Terramuggus54
- Terryville54
- Thomaston54
- Torrington54
- Torrington town54
- Wauregan54
- Weatogue54
- West Simsbury54
- Wethersfield54
- Willimantic54
- Winsted54
- Broad Brook53
- Colebrook53
- Crystal Lake53
- Ellington53
- Hazardville53
- Mansfield53
- New Haven53
- North Granby53
- Quinebaug53
- Riverton53
- Rockville53
- Salmon Brook53
- Sherman53
- Sherwood Manor53
- Simsbury Center53
- Somers53
- Southwood Acres53
- Stafford Springs53
- Suffield Depot53
- Tariffville53
- Thompsonville53
- Westport53
- Windsor53
- Cornwall52
- Hartford52
- Plainfield52
- Windsor Locks52
- Canterbury50
- East Hartford48
- Lebanon48
- Greenwich town46
- Madison45
- Glastonbury44
- Killingly44
- Winchester43
- West Hartford42
- East Haven41
- Tolland41
- Middletown40
- Simsbury39
- Enfield37
- Pomfret37
- Stafford37
- Cheshire20
- Redding2
- Canton1
