Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 10:08, Aug 30
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?
- New Canaan86
- Byram58
- Cannondale58
- Cos Cob58
- Darien Downtown58
- Glenville58
- Greens Farms58
- Greenwich town58
- Norwalk58
- Old Greenwich58
- Pemberwick58
- Riverside58
- Rock Ridge58
- Saugatuck58
- Stamford58
- Weston58
- Wilton Center58
- Redding57
- Redding Center57
- Ridgefield57
- Southport57
- Western Connecticut57
- Bethel56
- Greater Bridgeport56
- Lordship56
- Milford56
- Oronoque56
- Stratford56
- Tashua56
- Trumbull Center56
- Woodmont56
- Ansonia55
- Ashford55
- Bethlehem Village55
- Bigelow Corners55
- Blue Hills55
- Branford Center55
- Bristol55
- Broad Brook55
- Canaan55
- Canton55
- Canton Valley55
- Capitol55
- Cheshire55
- Cheshire Village55
- Chester Center55
- Clinton55
- Colchester55
- Collinsville55
- Coventry Lake55
- Cromwell55
- Crystal Lake55
- Deep River Center55
- Derby55
- Durham55
- East Hampton55
- Ellington55
- Essex Village55
- Farmington55
- Fenwick55
- Gaylordsville55
- Glastonbury Center55
- Guilford Center55
- Hamden55
- Hazardville55
- Heritage Village55
- Higganum55
- Kensington55
- Lake Pocotopaug55
- Litchfield55
- Lower Connecticut River Valley55
- Madison55
- Madison Center55
- Manchester55
- Mansfield Center55
- Meriden55
- Middlebury55
- Moodus55
- Naugatuck55
- Naugatuck Valley55
- New Britain55
- New Hartford Center55
- New Milford55
- New Preston55
- Newington55
- North Granby55
- North Haven55
- Northford55
- Northwest Harwinton55
- Northwest Hills55
- Oakville55
- Old Saybrook Center55
- Orange55
- Plainville55
- Plantsville55
- Plymouth55
- Portland55
- Prospect55
- Quinnipiac University55
- Riverton55
- Rockville55
- Salem55
- Salmon Brook55
- Sandy Hook55
- Saybrook Manor55
- Seymour55
- Sherwood Manor55
- Simsbury Center55
- Somers55
- South Central Connecticut55
- South Coventry55
- South Windham55
- South Windsor55
- Southington55
- Southwood Acres55
- Stafford55
- Stafford Springs55
- Storrs55
- Suffield Depot55
- Tariffville55
- Terramuggus55
- Terryville55
- Thomaston55
- Thompsonville55
- Torrington55
- Torrington town55
- Wallingford55
- Wallingford Center55
- Washington55
- Watertown55
- Weatogue55
- West Haven55
- West Simsbury55
- Westbrook Center55
- Wethersfield55
- Willimantic55
- Windsor55
- Windsor Locks55
- Winsted55
- Woodbridge55
- Woodbury Center55
- Baltic54
- Conning Towers-Nautilus Park54
- Danielson54
- East Brooklyn54
- Gales Ferry54
- Jewett City54
- Lisbon54
- Long Hill, Southeastern Connecticut County54
- Mashantucket54
- Mechanicsville54
- Moosup54
- Mystic54
- New London54
- Niantic54
- Noank54
- North Grosvenor Dale54
- Northeastern Connecticut54
- Old Lyme54
- Old Mystic54
- Oxoboxo River54
- Pawcatuck54
- Plainfield Village54
- Pomfret54
- Poquonock Bridge54
- Quasset Lake54
- Quinebaug54
- South Woodstock54
- Southeastern Connecticut54
- Waterford town54
- Wauregan54
- Coventry46
- Plainfield46
- Hartford40
- Mansfield38
- West Hartford34
- East Haven33
- Waterbury32
- Berlin31
- Cornwall31
- Killingly28
- East Hartford26
- Branford24
- Fairfield24
- Groton24
- Bridgeport23
- Greenwich22
- New Haven22
- Norwich22
- Old Saybrook22
- Trumbull21
- Enfield18
- Canterbury17
- Danbury17
- Killingworth17
- Montville17
- Simsbury17
- Glastonbury16
- Lyme16
- Milford town16
- Newtown15
- Lebanon14
- Westport14
- Deep River13
- Shelton13
- Tolland13
- Waterford11
- Winchester11
- Oxford10
- Sherman10
- Guilford9
- Hebron9
- Middletown8
- Woodbury4
- Colebrook3
- West Mountain1
