Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 10:13, Sep 21
Live most polluted city ranking
Real-time Connecticut most polluted city ranking
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Which is the most polluted city in Connecticut?
- Groton32
- Middletown32
- New Haven30
- Simsbury24
- Old Saybrook22
- Plainfield22
- Waterford22
- Cornwall19
- East Hartford19
- Danbury18
- Waterbury17
- Byram14
- Cos Cob14
- Glenville14
- Greenwich town14
- Old Greenwich14
- Pemberwick14
- Ridgefield14
- Riverside14
- Rock Ridge14
- Stamford14
- West Mountain14
- Bethel13
- Bigelow Corners13
- Cannondale13
- Darien Downtown13
- Norwalk13
- Redding13
- Western Connecticut13
- Wilton Center13
- New Canaan12
- Redding Center12
- Saugatuck12
- Weston12
- Westport12
- Ashford11
- Danielson11
- East Brooklyn11
- Gaylordsville11
- Greens Farms11
- Killingly11
- Mansfield Center11
- Mechanicsville11
- Moosup11
- New Milford11
- North Grosvenor Dale11
- Northeastern Connecticut11
- Pomfret11
- Quasset Lake11
- Quinebaug11
- South Woodstock11
- Stafford11
- Stafford Springs11
- Storrs11
- Wauregan11
- Willimantic11
- Baltic10
- Bridgeport10
- Coventry10
- Coventry Lake10
- Crystal Lake10
- Fairfield10
- Jewett City10
- Lisbon10
- Montville10
- Plainfield Village10
- South Coventry10
- South Windham10
- Southport10
- Tashua10
- Tolland10
- Ansonia9
- Bethlehem Village9
- Blue Hills9
- Bristol9
- Capitol9
- Cheshire9
- Colchester9
- Cromwell9
- Derby9
- East Hampton9
- Ellington9
- Farmington9
- Glastonbury Center9
- Greater Bridgeport9
- Hartford9
- Heritage Village9
- Kensington9
- Lake Pocotopaug9
- Lordship9
- Manchester9
- Mashantucket9
- Meriden9
- Middlebury9
- Milford9
- Milford town9
- Moodus9
- Naugatuck9
- Naugatuck Valley9
- New Britain9
- New Preston9
- Newington9
- Norwich9
- Oakville9
- Orange9
- Oronoque9
- Plainville9
- Plantsville9
- Portland9
- Prospect9
- Rockville9
- Salem9
- Sandy Hook9
- Seymour9
- Somers9
- South Windsor9
- Southeastern Connecticut9
- Stratford9
- Terramuggus9
- Trumbull Center9
- Washington9
- Watertown9
- West Haven9
- Wethersfield9
- Woodbridge9
- Woodbury Center9
- Woodmont9
- Broad Brook8
- Cheshire Village8
- Conning Towers-Nautilus Park8
- Gales Ferry8
- Hazardville8
- Higganum8
- Litchfield8
- Long Hill, Southeastern Connecticut County8
- Lyme8
- Mystic8
- New London8
- Niantic8
- Noank8
- Old Mystic8
- Oxoboxo River8
- Pawcatuck8
- Plymouth8
- Poquonock Bridge8
- Quinnipiac University8
- Terryville8
- Thomaston8
- Waterford town8
- Windsor Locks8
- Branford Center7
- Canaan7
- Canton7
- Canton Valley7
- Chester Center7
- Clinton7
- Collinsville7
- Deep River Center7
- Durham7
- East Haven7
- Essex Village7
- Fenwick7
- Greenwich7
- Guilford Center7
- Hamden7
- Lower Connecticut River Valley7
- Madison7
- Madison Center7
- New Hartford Center7
- North Granby7
- North Haven7
- Northford7
- Northwest Harwinton7
- Northwest Hills7
- Old Lyme7
- Old Saybrook Center7
- Riverton7
- Salmon Brook7
- Saybrook Manor7
- Sherwood Manor7
- Simsbury Center7
- South Central Connecticut7
- Southwood Acres7
- Suffield Depot7
- Tariffville7
- Thompsonville7
- Torrington7
- Torrington town7
- Wallingford7
- Wallingford Center7
- Weatogue7
- West Simsbury7
- Westbrook Center7
- Winchester7
- Winsted7
- Berlin6
- Southington6
- Trumbull6
- Lebanon4
- Mansfield3
- Bolton2
- Deep River2
- Guilford2
- Newtown2
- Sherman2
- Windsor2
- Branford1
- Canterbury1
- Colebrook1
- Hebron1
- West Hartford1
- Woodbury1
- Enfield0
- Glastonbury0
- Killingworth0
- Oxford0
- Shelton0
