Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 10:00, Sep 09
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?
- Baltic54
- Conning Towers-Nautilus Park54
- Danielson54
- East Brooklyn54
- Gales Ferry54
- Jewett City54
- Lisbon54
- Long Hill, Southeastern Connecticut County54
- Mansfield Center54
- Mashantucket54
- Moosup54
- Mystic54
- New London54
- Noank54
- Northeastern Connecticut54
- Norwich54
- Old Mystic54
- Oxoboxo River54
- Pawcatuck54
- Plainfield Village54
- Pomfret54
- Poquonock Bridge54
- Quasset Lake54
- Salem54
- South Windham54
- South Woodstock54
- Southeastern Connecticut54
- Waterford town54
- Wauregan54
- Willimantic54
- Ashford53
- Bethlehem Village53
- Blue Hills53
- Bristol53
- Broad Brook53
- Canaan53
- Canton53
- Canton Valley53
- Capitol53
- Chester Center53
- Colchester53
- Collinsville53
- Coventry Lake53
- Cromwell53
- Crystal Lake53
- Deep River Center53
- Durham53
- East Hampton53
- Ellington53
- Farmington53
- Fenwick53
- Gaylordsville53
- Glastonbury Center53
- Hazardville53
- Hebron53
- Higganum53
- Kensington53
- Lake Pocotopaug53
- Litchfield53
- Lower Connecticut River Valley53
- Manchester53
- Mechanicsville53
- Meriden53
- Middletown53
- Moodus53
- New Britain53
- New Hartford Center53
- New Milford53
- New Preston53
- Newington53
- Niantic53
- North Granby53
- North Grosvenor Dale53
- Northwest Harwinton53
- Northwest Hills53
- Old Lyme53
- Old Saybrook Center53
- Plainville53
- Plymouth53
- Portland53
- Quinebaug53
- Riverton53
- Rockville53
- Salmon Brook53
- Saybrook Manor53
- Sherwood Manor53
- Simsbury Center53
- Somers53
- South Coventry53
- South Windsor53
- Southwood Acres53
- Stafford53
- Stafford Springs53
- Storrs53
- Suffield Depot53
- Tariffville53
- Terramuggus53
- Terryville53
- Thomaston53
- Thompsonville53
- Torrington53
- Torrington town53
- Washington53
- Weatogue53
- West Simsbury53
- Wethersfield53
- Windsor53
- Windsor Locks53
- Winsted53
- Ansonia52
- Bethel52
- Bigelow Corners52
- Cheshire Village52
- Clinton52
- Coventry52
- Guilford Center52
- Heritage Village52
- Madison52
- Madison Center52
- Middlebury52
- Naugatuck52
- Naugatuck Valley52
- North Haven52
- Northford52
- Oakville52
- Plantsville52
- Prospect52
- Quinnipiac University52
- Sandy Hook52
- Seymour52
- South Central Connecticut52
- Southington52
- Wallingford52
- Wallingford Center52
- Watertown52
- Westbrook Center52
- Woodbridge52
- Woodbury Center52
- Branford Center51
- Derby51
- Orange51
- Redding51
- Redding Center51
- Ridgefield51
- Tashua51
- West Haven51
- Western Connecticut51
- Oronoque50
- Cannondale49
- Milford49
- Trumbull Center49
- Wilton Center49
- Woodmont49
- Greater Bridgeport48
- Stratford48
- Weston48
- Lordship47
- Southport47
- Darien Downtown46
- Greens Farms46
- Norwalk46
- Saugatuck46
- Stamford46
- Westport46
- Cos Cob45
- Glenville45
- Greenwich town45
- Riverside45
- Rock Ridge45
- Byram44
- Hamden44
- Old Greenwich44
- Pemberwick44
- Hartford40
- Greenwich39
- Killingly39
- East Hartford37
- Mansfield35
- Bolton34
- Cornwall33
- Waterbury32
- East Haven31
- Danbury30
- Fairfield30
- Groton29
- Berlin28
- New Canaan28
- Old Saybrook28
- Simsbury28
- Montville26
- Bridgeport25
- New Haven25
- Trumbull24
- Canterbury23
- Essex Village23
- Glastonbury23
- Lyme23
- Plainfield23
- Waterford23
- Branford22
- Tolland22
- Deep River21
- Lebanon21
- Killingworth19
- Sherman19
- West Hartford19
- Winchester18
- Enfield17
- Oxford16
- Guilford15
- Newtown14
- Shelton14
- Milford town12
- Woodbury10
- West Mountain9
- Colebrook6
- Cheshire2
