Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 16:54, Oct 22
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?
- Shelton34
- New Haven32
- Pomfret31
- Cornwall29
- Windsor29
- Hamden27
- Trumbull27
- East Hartford26
- Southington25
- Berlin24
- Lebanon24
- New Canaan24
- Deep River23
- Oxford23
- Branford22
- East Haven22
- Middletown22
- Tolland22
- West Hartford22
- Bolton21
- Colebrook21
- Fairfield21
- Glastonbury21
- Lyme21
- Mansfield21
- Sherman21
- Waterbury21
- Bridgeport20
- Killingworth20
- Winchester20
- Byram19
- Cos Cob19
- Glenville19
- Greenwich town19
- Old Greenwich19
- Pemberwick19
- Plainfield19
- Riverside19
- Rock Ridge19
- Stamford19
- Woodbury19
- Darien Downtown18
- Montville18
- Norwalk18
- Hartford17
- Hebron17
- Ridgefield17
- Saugatuck17
- Washington17
- Waterford17
- West Mountain17
- Westport17
- Wilton Center17
- Cannondale16
- Greens Farms16
- Guilford16
- Western Connecticut16
- Weston16
- Bigelow Corners15
- Danbury15
- Southport15
- Ansonia14
- Bethel14
- Branford Center14
- Cheshire14
- Cheshire Village14
- Chester Center14
- Clinton14
- Deep River Center14
- Derby14
- Durham14
- Essex Village14
- Fenwick14
- Gaylordsville14
- Greater Bridgeport14
- Guilford Center14
- Heritage Village14
- Lordship14
- Lower Connecticut River Valley14
- Madison14
- Madison Center14
- Meriden14
- Middlebury14
- Milford14
- Naugatuck14
- Naugatuck Valley14
- New Milford14
- Newtown14
- North Haven14
- Northford14
- Old Saybrook Center14
- Orange14
- Oronoque14
- Prospect14
- Quinnipiac University14
- Redding Center14
- Sandy Hook14
- Saybrook Manor14
- Seymour14
- South Central Connecticut14
- Stratford14
- Tashua14
- Trumbull Center14
- Wallingford14
- Wallingford Center14
- West Haven14
- Westbrook Center14
- Woodbridge14
- Woodbury Center14
- Woodmont14
- Bethlehem Village13
- Enfield13
- Greenwich13
- Higganum13
- New Preston13
- Oakville13
- Old Lyme13
- Plantsville13
- Watertown13
- Bristol12
- Canaan12
- Farmington12
- Kensington12
- Litchfield12
- Moodus12
- New Britain12
- Niantic12
- Northwest Harwinton12
- Northwest Hills12
- Plainville12
- Plymouth12
- Portland12
- Terryville12
- Thomaston12
- Torrington12
- Torrington town12
- Winsted12
- Canton11
- Canton Valley11
- Collinsville11
- Cromwell11
- East Hampton11
- Groton11
- Lake Pocotopaug11
- New Hartford Center11
- Newington11
- Riverton11
- Ashford9
- Baltic9
- Blue Hills9
- Broad Brook9
- Capitol9
- Colchester9
- Conning Towers-Nautilus Park9
- Coventry9
- Coventry Lake9
- Crystal Lake9
- Danielson9
- East Brooklyn9
- Ellington9
- Gales Ferry9
- Glastonbury Center9
- Hazardville9
- Jewett City9
- Lisbon9
- Long Hill, Southeastern Connecticut County9
- Manchester9
- Mansfield Center9
- Mashantucket9
- Mechanicsville9
- Milford town9
- Moosup9
- Mystic9
- New London9
- Noank9
- North Granby9
- North Grosvenor Dale9
- Northeastern Connecticut9
- Norwich9
- Old Mystic9
- Oxoboxo River9
- Pawcatuck9
- Plainfield Village9
- Poquonock Bridge9
- Quasset Lake9
- Quinebaug9
- Rockville9
- Salem9
- Salmon Brook9
- Sherwood Manor9
- Simsbury Center9
- Somers9
- South Coventry9
- South Windham9
- South Windsor9
- South Woodstock9
- Southeastern Connecticut9
- Southwood Acres9
- Stafford9
- Stafford Springs9
- Storrs9
- Suffield Depot9
- Tariffville9
- Terramuggus9
- Thompsonville9
- Waterford town9
- Wauregan9
- Weatogue9
- West Simsbury9
- Wethersfield9
- Willimantic9
- Windsor Locks9
- Canterbury8
- Simsbury6
- Redding3
- Killingly0
- Old Saybrook0
