Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 08:20, Sep 03
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?
- Byram52
- Cos Cob52
- Glenville52
- Greenwich town52
- Old Greenwich52
- Pemberwick52
- Riverside52
- Rock Ridge52
- Darien Downtown51
- Mechanicsville51
- North Grosvenor Dale51
- Quinebaug51
- Stamford51
- Norwalk50
- Cannondale49
- Greens Farms49
- Quasset Lake49
- Ridgefield49
- Saugatuck49
- South Woodstock49
- Southport49
- West Mountain49
- Western Connecticut49
- Weston49
- Westport49
- Wilton Center49
- Greater Bridgeport48
- Redding48
- Redding Center48
- Tashua48
- Ashford47
- Bethel47
- Danielson47
- East Brooklyn47
- Lordship47
- Northeastern Connecticut47
- Pomfret47
- Stafford47
- Stafford Springs47
- Stratford47
- Trumbull Center47
- Ansonia46
- Bethlehem Village46
- Bigelow Corners46
- Crystal Lake46
- Derby46
- Ellington46
- Gaylordsville46
- Hazardville46
- Heritage Village46
- Middlebury46
- Milford46
- Naugatuck46
- Naugatuck Valley46
- New Milford46
- Oakville46
- Orange46
- Oronoque46
- Prospect46
- Sandy Hook46
- Seymour46
- Sherwood Manor46
- Somers46
- Washington46
- Watertown46
- Wauregan46
- Woodbury Center46
- Woodmont46
- Bristol45
- Broad Brook45
- Canton45
- Cheshire45
- Cheshire Village45
- Coventry Lake45
- Litchfield45
- Mansfield Center45
- Moosup45
- New Hartford Center45
- New Preston45
- North Granby45
- Plantsville45
- Plymouth45
- Quinnipiac University45
- Rockville45
- Salmon Brook45
- Southwood Acres45
- Storrs45
- Suffield Depot45
- Tariffville45
- Terryville45
- Thomaston45
- Thompsonville45
- West Haven45
- Windsor Locks45
- Woodbridge45
- Blue Hills44
- Branford Center44
- Canton Valley44
- Capitol44
- Colchester44
- Collinsville44
- Cromwell44
- Durham44
- East Hampton44
- Farmington44
- Glastonbury Center44
- Guilford Center44
- Higganum44
- Kensington44
- Lake Pocotopaug44
- Manchester44
- Meriden44
- Moodus44
- New Britain44
- Newington44
- North Haven44
- Northford44
- Northwest Harwinton44
- Northwest Hills44
- Plainfield Village44
- Plainville44
- Portland44
- Riverton44
- Simsbury Center44
- South Central Connecticut44
- South Coventry44
- South Windham44
- South Windsor44
- Terramuggus44
- Torrington44
- Torrington town44
- Wallingford44
- Wallingford Center44
- Weatogue44
- West Simsbury44
- Wethersfield44
- Willimantic44
- Windsor44
- Winsted44
- Baltic43
- Jewett City43
- Lisbon43
- Lower Connecticut River Valley43
- Madison43
- Madison Center43
- Chester Center42
- Clinton42
- Norwich42
- Canaan41
- Deep River Center41
- Essex Village41
- Fenwick41
- Mashantucket41
- Old Lyme41
- Old Saybrook Center41
- Salem41
- Saybrook Manor41
- Southeastern Connecticut41
- Westbrook Center41
- Conning Towers-Nautilus Park40
- Gales Ferry40
- Niantic40
- Old Mystic40
- Oxoboxo River40
- Pawcatuck40
- Long Hill, Southeastern Connecticut County39
- Mystic39
- New London39
- Noank39
- Poquonock Bridge39
- Simsbury39
- Waterford town39
- East Hartford34
- Coventry33
- Hartford33
- Killingly28
- Waterbury27
- Berlin23
- Cornwall23
- Danbury22
- Hamden21
- Mansfield19
- Montville18
- New Haven18
- Oxford18
- West Hartford18
- East Haven17
- Greenwich17
- Old Saybrook17
- Plainfield17
- Canterbury16
- Fairfield16
- Middletown15
- Newtown14
- Southington14
- Glastonbury13
- Groton13
- Trumbull13
- Winchester13
- Lyme12
- Deep River11
- Lebanon11
- Sherman11
- Tolland11
- Woodbury11
- Bridgeport10
- Enfield10
- Killingworth10
- New Canaan10
- Branford9
- Waterford9
- Hebron7
- Guilford4
- Shelton4
- Colebrook3
- Milford town2
