Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 20:22, Oct 20
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?
- Oxford54
- Shelton42
- East Hartford37
- Cornwall35
- New Haven33
- Pomfret33
- Montville28
- Plainfield27
- Southington24
- Bridgeport23
- Deep River23
- Hamden23
- Lyme23
- Mansfield23
- Berlin22
- Bolton22
- Danbury22
- Killingworth22
- Middletown22
- Trumbull22
- West Hartford22
- Windsor22
- Fairfield21
- Lebanon21
- New Canaan21
- Tolland21
- Winchester21
- Branford20
- Canterbury20
- East Haven20
- Glastonbury20
- Hebron19
- Sherman19
- Enfield18
- Groton18
- Hartford18
- Milford town18
- Woodbury18
- Mystic16
- Noank16
- Old Mystic16
- Pawcatuck16
- Poquonock Bridge16
- Washington16
- Conning Towers-Nautilus Park15
- Gales Ferry15
- Long Hill, Southeastern Connecticut County15
- Mashantucket15
- New London15
- Niantic15
- Old Lyme15
- Waterbury15
- Waterford town15
- Clinton14
- Deep River Center14
- Essex Village14
- Fenwick14
- Guilford14
- Jewett City14
- Norwich14
- Old Saybrook Center14
- Oxoboxo River14
- Salem14
- Saybrook Manor14
- Southeastern Connecticut14
- Westbrook Center14
- Baltic13
- Byram13
- Chester Center13
- Cos Cob13
- Darien Downtown13
- Glenville13
- Greenwich town13
- Lisbon13
- Lower Connecticut River Valley13
- Madison Center13
- Old Greenwich13
- Pemberwick13
- Plainfield Village13
- Riverside13
- Rock Ridge13
- Stamford13
- Cannondale12
- Colebrook12
- Greens Farms12
- Guilford Center12
- Madison12
- Moodus12
- Moosup12
- Norwalk12
- Redding12
- Ridgefield12
- Saugatuck12
- Waterford12
- West Mountain12
- Westport12
- Wilton Center12
- Bigelow Corners11
- Branford Center11
- Colchester11
- Greater Bridgeport11
- Killingly11
- Lordship11
- Redding Center11
- Southport11
- Stratford11
- Western Connecticut11
- Weston11
- Bethel10
- Higganum10
- Milford10
- South Central Connecticut10
- Trumbull Center10
- Wauregan10
- Woodmont10
- Ansonia9
- Danielson9
- Derby9
- Durham9
- East Brooklyn9
- East Hampton9
- Gaylordsville9
- Greenwich9
- Lake Pocotopaug9
- Mansfield Center9
- Newtown9
- North Haven9
- Northeastern Connecticut9
- Northford9
- Orange9
- Oronoque9
- South Windham9
- Tashua9
- Wallingford Center9
- West Haven9
- Willimantic9
- Woodbridge9
- Ashford8
- Cheshire8
- Cheshire Village8
- Coventry Lake8
- Cromwell8
- Glastonbury Center8
- Heritage Village8
- Kensington8
- Manchester8
- Mechanicsville8
- Meriden8
- Middlebury8
- Naugatuck8
- Naugatuck Valley8
- New Milford8
- New Preston8
- North Grosvenor Dale8
- Plantsville8
- Portland8
- Prospect8
- Quasset Lake8
- Quinebaug8
- Quinnipiac University8
- Sandy Hook8
- Seymour8
- South Coventry8
- South Woodstock8
- Storrs8
- Terramuggus8
- Wallingford8
- Wethersfield8
- Woodbury Center8
- Bethlehem Village7
- Blue Hills7
- Bristol7
- Broad Brook7
- Canaan7
- Canton7
- Canton Valley7
- Capitol7
- Collinsville7
- Crystal Lake7
- Ellington7
- Farmington7
- Hazardville7
- Litchfield7
- New Britain7
- New Hartford Center7
- Newington7
- North Granby7
- Northwest Harwinton7
- Northwest Hills7
- Oakville7
- Plainville7
- Plymouth7
- Riverton7
- Rockville7
- Salmon Brook7
- Sherwood Manor7
- Simsbury Center7
- Somers7
- South Windsor7
- Southwood Acres7
- Stafford7
- Stafford Springs7
- Suffield Depot7
- Tariffville7
- Terryville7
- Thomaston7
- Thompsonville7
- Torrington7
- Torrington town7
- Watertown7
- Weatogue7
- West Simsbury7
- Windsor Locks7
- Winsted7
- Old Saybrook6
- Simsbury6
- Coventry5
