Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 12:23, Oct 11
Live most polluted city ranking
Real-time Connecticut most polluted city ranking
Wildfires in Connecticut
Real-time information
Active fires
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Which is the most polluted city in Connecticut?
- Trumbull71
- Bridgeport63
- Windsor63
- Plainfield59
- East Hartford55
- Lebanon55
- West Hartford52
- Hamden45
- Hartford43
- Danbury41
- Mansfield39
- New Haven39
- Winchester39
- Waterbury38
- Deep River37
- Shelton37
- East Haven36
- Bolton33
- Greenwich31
- Canterbury30
- Cornwall30
- Fairfield29
- Enfield28
- Killingly28
- Simsbury28
- Waterford27
- Milford town26
- Old Saybrook26
- New Canaan25
- Oxford25
- Montville24
- Groton22
- Berlin21
- Glastonbury21
- Quinebaug19
- Southington19
- Bethel18
- Bigelow Corners18
- Guilford18
- Killingworth18
- Mechanicsville18
- North Grosvenor Dale18
- Redding18
- Redding Center18
- Ridgefield18
- Stafford18
- Stafford Springs18
- Western Connecticut18
- Ashford17
- Branford17
- Cannondale17
- Coventry17
- Crystal Lake17
- Danielson17
- East Brooklyn17
- Ellington17
- Gaylordsville17
- Heritage Village17
- Moosup17
- New Milford17
- New Preston17
- Northeastern Connecticut17
- Plainfield Village17
- Pomfret17
- Quasset Lake17
- Sandy Hook17
- Somers17
- South Woodstock17
- Tashua17
- Wauregan17
- Weston17
- Wilton Center17
- Ansonia16
- Baltic16
- Bethlehem Village16
- Blue Hills16
- Branford Center16
- Bristol16
- Broad Brook16
- Canaan16
- Canton16
- Canton Valley16
- Capitol16
- Cheshire Village16
- Colchester16
- Collinsville16
- Coventry Lake16
- Cromwell16
- Derby16
- Durham16
- East Hampton16
- Farmington16
- Glastonbury Center16
- Greater Bridgeport16
- Hazardville16
- Higganum16
- Jewett City16
- Kensington16
- Lake Pocotopaug16
- Lisbon16
- Litchfield16
- Lyme16
- Madison16
- Manchester16
- Mansfield Center16
- Meriden16
- Middlebury16
- Milford16
- Moodus16
- Naugatuck16
- Naugatuck Valley16
- New Britain16
- New Hartford Center16
- Newington16
- North Granby16
- North Haven16
- Northford16
- Northwest Harwinton16
- Northwest Hills16
- Norwich16
- Oakville16
- Orange16
- Oronoque16
- Plainville16
- Plantsville16
- Plymouth16
- Portland16
- Prospect16
- Quinnipiac University16
- Riverton16
- Rockville16
- Salmon Brook16
- Seymour16
- Sherwood Manor16
- Simsbury Center16
- South Central Connecticut16
- South Coventry16
- South Windham16
- South Windsor16
- Southwood Acres16
- Storrs16
- Stratford16
- Suffield Depot16
- Tariffville16
- Terramuggus16
- Terryville16
- Thomaston16
- Thompsonville16
- Torrington16
- Torrington town16
- Trumbull Center16
- Wallingford16
- Wallingford Center16
- Watertown16
- Weatogue16
- West Haven16
- West Simsbury16
- Wethersfield16
- Willimantic16
- Windsor Locks16
- Winsted16
- Woodbridge16
- Woodbury Center16
- Woodmont16
- Chester Center15
- Clinton15
- Conning Towers-Nautilus Park15
- Deep River Center15
- Essex Village15
- Fenwick15
- Gales Ferry15
- Guilford Center15
- Long Hill, Southeastern Connecticut County15
- Lordship15
- Lower Connecticut River Valley15
- Madison Center15
- Mashantucket15
- Mystic15
- New London15
- Niantic15
- Noank15
- Old Lyme15
- Old Mystic15
- Old Saybrook Center15
- Oxoboxo River15
- Pawcatuck15
- Poquonock Bridge15
- Salem15
- Saugatuck15
- Saybrook Manor15
- Southeastern Connecticut15
- Southport15
- Waterford town15
- Westbrook Center15
- Greens Farms14
- Norwalk14
- Sherman14
- Tolland14
- Westport14
- Darien Downtown13
- Newtown13
- Stamford13
- Byram12
- Colebrook12
- Cos Cob12
- Glenville12
- Greenwich town12
- Middletown12
- Old Greenwich12
- Pemberwick12
- Riverside12
- Rock Ridge12
- Hebron11
- West Mountain10
- Washington7
- Woodbury6
- Cheshire1
