Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 18:42, Nov 06
Live most polluted city ranking
Real-time Connecticut most polluted city ranking
Wildfires in Connecticut
Real-time information
Active fires
--
Learn more about global air quality
Which is the most polluted city in Connecticut?
- Waterbury54
- Pomfret37
- Hartford35
- East Hartford32
- Byram30
- Glenville30
- Greenwich town30
- Pemberwick30
- Rock Ridge30
- Cos Cob29
- Riverside29
- Danbury28
- Old Greenwich28
- Stamford28
- Cannondale27
- Darien Downtown27
- Ridgefield27
- Western Connecticut27
- Wilton Center27
- Bethel26
- Bigelow Corners26
- Cornwall26
- New Haven26
- Norwalk26
- Redding26
- Redding Center26
- Weston26
- Plainfield25
- Saugatuck25
- Westport25
- Bethlehem Village24
- Canaan24
- Gaylordsville24
- Greens Farms24
- Heritage Village24
- Litchfield24
- Middlebury24
- Naugatuck Valley24
- New Milford24
- New Preston24
- Oakville24
- Sandy Hook24
- Southport24
- Tashua24
- Washington24
- Watertown24
- Woodbury Center24
- Greater Bridgeport23
- Naugatuck23
- Northwest Hills23
- Seymour23
- Thomaston23
- Torrington23
- Torrington town23
- Trumbull Center23
- Blue Hills22
- Bristol22
- Canton22
- Canton Valley22
- Cheshire Village22
- Collinsville22
- Fairfield22
- Farmington22
- New Britain22
- New Hartford Center22
- Newington22
- North Granby22
- Northwest Harwinton22
- Oronoque22
- Plainville22
- Plantsville22
- Plymouth22
- Prospect22
- Riverton22
- Salmon Brook22
- Simsbury Center22
- Southington22
- Tariffville22
- Terryville22
- Waterford22
- Weatogue22
- West Simsbury22
- Winsted22
- Woodbridge22
- Kensington21
- Meriden21
- Quinnipiac University21
- Stratford21
- Suffield Depot21
- Windsor Locks21
- Capitol20
- Lordship20
- Milford20
- Orange20
- Sherman20
- South Windsor20
- Southwood Acres20
- Thompsonville20
- Wethersfield20
- Broad Brook19
- Cromwell19
- Glastonbury Center19
- Hazardville19
- Manchester19
- North Haven19
- Sherwood Manor19
- Somers19
- Wallingford19
- Wallingford Center19
- Crystal Lake18
- Ellington18
- Groton18
- Rockville18
- West Haven18
- Woodmont18
- Hamden17
- Montville17
- Northford17
- Portland17
- Simsbury17
- Stafford17
- Stafford Springs17
- Coventry Lake16
- Durham16
- East Haven16
- South Central Connecticut16
- Terramuggus16
- Winchester16
- Lake Pocotopaug15
- Ashford14
- Branford Center14
- East Hampton14
- Higganum14
- Oxford14
- South Coventry14
- Storrs14
- Windsor14
- Greenwich13
- Mansfield Center13
- Quinebaug13
- Berlin12
- Colchester12
- Mechanicsville12
- Moodus12
- North Grosvenor Dale12
- Quasset Lake12
- South Windham12
- South Woodstock12
- Willimantic12
- Bolton11
- Derby11
- Guilford Center11
- Killingly11
- Lower Connecticut River Valley11
- Madison11
- Northeastern Connecticut11
- Old Saybrook11
- Chester Center10
- Danielson10
- East Brooklyn10
- Mansfield10
- Trumbull10
- Ansonia9
- Baltic9
- Coventry9
- Deep River Center9
- Glastonbury9
- Madison Center9
- Moosup9
- Plainfield Village9
- Salem9
- Wauregan9
- Clinton8
- Essex Village8
- Jewett City8
- Lisbon8
- Norwich8
- West Hartford8
- Branford7
- Canterbury7
- Deep River7
- Gales Ferry7
- Killingworth7
- Newtown7
- Old Lyme7
- Oxoboxo River7
- Southeastern Connecticut7
- Westbrook Center7
- Bridgeport6
- Conning Towers-Nautilus Park6
- Fenwick6
- Hebron6
- Long Hill, Southeastern Connecticut County6
- Mashantucket6
- Mystic6
- New London6
- Niantic6
- Noank6
- Old Mystic6
- Old Saybrook Center6
- Pawcatuck6
- Poquonock Bridge6
- Saybrook Manor6
- Tolland6
- Waterford town6
- Shelton5
- Lebanon4
- New Canaan4
- Lyme3
- Middletown3
- Enfield2
- Guilford2
- Colebrook1
- Columbia1
- Milford town1
- Woodbury1
- Cheshire0
- West Mountain0
