Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 12:00, May 30
Live most polluted city ranking
Real-time Connecticut most polluted city ranking
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Which is the most polluted city in Connecticut?
- Plainfield42
- Byram35
- Glenville34
- Greenwich town34
- Pemberwick34
- Rock Ridge34
- Cos Cob33
- Old Greenwich33
- Riverside33
- Darien Downtown32
- Stamford32
- Greens Farms31
- New Canaan31
- Norwalk31
- Saugatuck31
- Southport30
- Cannondale29
- Greater Bridgeport29
- Lordship29
- Ridgefield29
- West Mountain29
- Weston29
- Wilton Center29
- Milford28
- Stratford28
- Trumbull Center28
- Western Connecticut28
- Ansonia27
- Bethel27
- Blue Hills27
- Branford Center27
- Bristol27
- Broad Brook27
- Capitol27
- Cheshire27
- Cheshire Village27
- Chester Center27
- Clinton27
- Colchester27
- Coventry Lake27
- Cromwell27
- Crystal Lake27
- Deep River Center27
- Derby27
- Durham27
- East Hampton27
- Ellington27
- Essex Village27
- Farmington27
- Glastonbury Center27
- Guilford Center27
- Hebron27
- Higganum27
- Kensington27
- Lake Pocotopaug27
- Lower Connecticut River Valley27
- Madison27
- Madison Center27
- Manchester27
- Mansfield Center27
- Meriden27
- Middletown27
- Moodus27
- Naugatuck27
- New Britain27
- Newington27
- North Haven27
- Northford27
- Orange27
- Oronoque27
- Plainville27
- Plantsville27
- Portland27
- Prospect27
- Quinnipiac University27
- Redding Center27
- Rockville27
- Salem27
- Seymour27
- Shelton27
- South Central Connecticut27
- South Coventry27
- South Windham27
- South Windsor27
- Stafford Springs27
- Storrs27
- Tashua27
- Terramuggus27
- Wallingford27
- Wallingford Center27
- West Haven27
- Wethersfield27
- Willimantic27
- Windsor27
- Woodbridge27
- Woodmont27
- Baltic26
- Canton Valley26
- Collinsville26
- Conning Towers-Nautilus Park26
- East Brooklyn26
- Fenwick26
- Gales Ferry26
- Hazardville26
- Heritage Village26
- Jewett City26
- Lisbon26
- Long Hill, Southeastern Connecticut County26
- Mashantucket26
- Middlebury26
- Naugatuck Valley26
- New London26
- Niantic26
- Northeastern Connecticut26
- Norwich26
- Oakville26
- Old Lyme26
- Old Saybrook Center26
- Oxoboxo River26
- Plymouth26
- Pomfret26
- Quasset Lake26
- Sandy Hook26
- Saybrook Manor26
- Sherwood Manor26
- Simsbury Center26
- Somers26
- South Woodstock26
- Southeastern Connecticut26
- Southwood Acres26
- Suffield Depot26
- Tariffville26
- Terryville26
- Thompsonville26
- Waterford26
- Waterford town26
- Watertown26
- Wauregan26
- Weatogue26
- West Simsbury26
- Westbrook Center26
- Woodbury Center26
- Bigelow Corners25
- Canton25
- Cornwall25
- Danbury25
- Danielson25
- Groton25
- Noank25
- North Grosvenor Dale25
- Old Mystic25
- Plainfield Village25
- Poquonock Bridge25
- Quinebaug25
- Salmon Brook25
- Thomaston25
- Bethlehem Village24
- Mechanicsville24
- Moosup24
- Mystic24
- New Haven24
- Pawcatuck24
- Stafford24
- East Hartford23
- Gaylordsville23
- Litchfield23
- New Hartford Center23
- North Granby23
- Northwest Harwinton23
- Washington23
- New Preston22
- Riverton22
- Torrington22
- Torrington town22
- Winsted22
- Northwest Hills21
- Canaan19
- East Haven18
- Fairfield16
- Trumbull15
- Westport12
- Bridgeport11
- Hamden11
- Woodbury11
- Milford town10
- Sherman10
- New Milford9
- Guilford8
- Lebanon8
- Lyme8
- Newtown8
- Waterbury8
- Coventry7
- Branford6
- Greenwich6
- Hartford6
- Montville6
- Southington6
- Berlin5
- Deep River5
- Ashford4
- Killingworth4
- Oxford4
- Redding4
- Winchester4
- Canterbury3
- Colebrook3
- Mansfield3
- Windsor Locks3
- Enfield2
- Glastonbury2
- Tolland2
- West Hartford2
