Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 07:38, Oct 04
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?
- New Canaan246
- Coventry55
- Mansfield41
- Plainfield37
- East Hartford34
- Hartford34
- Waterbury33
- Hamden32
- Killingly32
- Danbury31
- Berlin29
- Greenwich29
- Old Saybrook29
- East Haven28
- Newtown28
- Shelton28
- Canterbury27
- Fairfield27
- Groton27
- Simsbury27
- Glastonbury26
- Lebanon26
- Pawcatuck26
- Deep River25
- Montville25
- Mystic24
- Noank24
- Old Mystic24
- Poquonock Bridge24
- Long Hill, Southeastern Connecticut County23
- New London23
- Conning Towers-Nautilus Park22
- Fenwick22
- Mashantucket22
- New Haven22
- Niantic22
- Old Saybrook Center22
- Oxford22
- Saybrook Manor22
- Windsor22
- Bolton21
- Bridgeport21
- Byram21
- Cannondale21
- Clinton21
- Cos Cob21
- Darien Downtown21
- Gales Ferry21
- Greater Bridgeport21
- Greens Farms21
- Greenwich town21
- Lordship21
- Milford21
- Norwalk21
- Old Greenwich21
- Old Lyme21
- Pemberwick21
- Riverside21
- Rock Ridge21
- Saugatuck21
- Southport21
- Stamford21
- Stratford21
- Trumbull Center21
- Westbrook Center21
- Weston21
- Westport21
- Wilton Center21
- Woodmont21
- Branford Center20
- Cornwall20
- Glenville20
- Guilford Center20
- Madison Center20
- Orange20
- Oronoque20
- South Central Connecticut20
- Tashua20
- Trumbull20
- West Haven20
- Ansonia19
- Branford19
- Chester Center19
- Deep River Center19
- Derby19
- Essex Village19
- Madison19
- North Haven19
- Oxoboxo River19
- Redding19
- Redding Center19
- Ridgefield19
- Southeastern Connecticut19
- Western Connecticut19
- Woodbridge19
- Baltic18
- Cheshire Village18
- Durham18
- Higganum18
- Jewett City18
- Lisbon18
- Lower Connecticut River Valley18
- Middletown18
- Moodus18
- Naugatuck18
- Northford18
- Norwich18
- Prospect18
- Quinnipiac University18
- Salem18
- Sandy Hook18
- Seymour18
- Sherman18
- Wallingford18
- Wallingford Center18
- Bethel17
- Colchester17
- East Hampton17
- Killingworth17
- Lake Pocotopaug17
- Meriden17
- Moosup17
- Naugatuck Valley17
- Plainfield Village17
- Portland17
- Waterford17
- Bigelow Corners16
- Cromwell16
- Danielson16
- East Brooklyn16
- Heritage Village16
- Kensington16
- Middlebury16
- Oakville16
- Plantsville16
- South Windham16
- Terramuggus16
- Wauregan16
- Northeastern Connecticut15
- Watertown15
- West Hartford15
- Winchester15
- Woodbury Center15
- Ashford14
- Bethlehem Village14
- Blue Hills14
- Bristol14
- Capitol14
- Coventry Lake14
- Crystal Lake14
- Ellington14
- Farmington14
- Gaylordsville14
- Glastonbury Center14
- Litchfield14
- Manchester14
- Mansfield Center14
- Mechanicsville14
- New Britain14
- New Milford14
- New Preston14
- Newington14
- North Grosvenor Dale14
- Northwest Harwinton14
- Plainville14
- Plymouth14
- Pomfret14
- Quasset Lake14
- Quinebaug14
- Rockville14
- South Coventry14
- South Windsor14
- South Woodstock14
- Stafford14
- Stafford Springs14
- Storrs14
- Terryville14
- Thomaston14
- Wethersfield14
- Willimantic14
- Woodbury14
- Broad Brook13
- Canton13
- Canton Valley13
- Collinsville13
- Hazardville13
- Milford town13
- Northwest Hills13
- Somers13
- Southington13
- Southwood Acres13
- Tolland13
- Torrington13
- Torrington town13
- Weatogue13
- Windsor Locks13
- Guilford12
- New Hartford Center12
- North Granby12
- Riverton12
- Salmon Brook12
- Sherwood Manor12
- Simsbury Center12
- Suffield Depot12
- Tariffville12
- Thompsonville12
- West Simsbury12
- Winsted12
- Canaan11
- Lyme11
- Enfield7
- West Mountain7
- Colebrook4
- Cheshire1
- Washington0
- Waterford town0
