Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 00:01, Sep 09
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?
- East Hartford62
- Byram53
- Cos Cob53
- Glenville53
- Greenwich town53
- Old Greenwich53
- Pemberwick53
- Riverside53
- Rock Ridge53
- Stamford53
- Coventry52
- Darien Downtown52
- Norwalk52
- Ridgefield52
- Wilton Center52
- Cannondale51
- Greens Farms51
- Saugatuck51
- Western Connecticut51
- Weston51
- Westport51
- Redding50
- Redding Center50
- Southport50
- Bethel49
- Bigelow Corners49
- Greater Bridgeport49
- Tashua49
- Lordship48
- Sandy Hook48
- Stratford48
- Trumbull Center48
- East Haven47
- Milford47
- Oronoque47
- Ansonia46
- Derby46
- Hartford46
- Heritage Village46
- Orange46
- Seymour46
- Woodmont46
- West Haven45
- Woodbridge45
- Branford Center44
- Hamden44
- Middlebury44
- Naugatuck44
- Naugatuck Valley44
- North Haven44
- Quinnipiac University44
- South Central Connecticut44
- Woodbury Center44
- Cheshire Village43
- Guilford Center43
- New Milford43
- Northford43
- Prospect43
- Wallingford Center43
- Chester Center42
- Clinton42
- Deep River Center42
- Durham42
- Fenwick42
- Lower Connecticut River Valley42
- Madison42
- Madison Center42
- Meriden42
- Oakville42
- Old Saybrook Center42
- Plainfield42
- Plantsville42
- Saybrook Manor42
- Wallingford42
- Watertown42
- Westbrook Center42
- Bethlehem Village41
- Cromwell41
- Gaylordsville41
- Higganum41
- Kensington41
- Moodus41
- Old Lyme41
- Portland41
- Southington41
- Bristol40
- East Hampton40
- Farmington40
- New Britain40
- Newington40
- Niantic40
- Plainville40
- Plymouth40
- Terryville40
- Thomaston40
- Washington40
- Wethersfield40
- Baltic39
- Blue Hills39
- Bolton39
- Broad Brook39
- Canton Valley39
- Capitol39
- Colchester39
- Collinsville39
- Conning Towers-Nautilus Park39
- Coventry Lake39
- Crystal Lake39
- Ellington39
- Gales Ferry39
- Glastonbury Center39
- Hazardville39
- Lake Pocotopaug39
- Litchfield39
- Long Hill, Southeastern Connecticut County39
- Manchester39
- Mashantucket39
- Mystic39
- New Hartford Center39
- New London39
- New Preston39
- Noank39
- Northwest Harwinton39
- Norwich39
- Old Mystic39
- Oxoboxo River39
- Pawcatuck39
- Poquonock Bridge39
- Rockville39
- Salem39
- Salmon Brook39
- Sherwood Manor39
- Simsbury Center39
- Somers39
- South Coventry39
- South Windham39
- South Windsor39
- Southeastern Connecticut39
- Southwood Acres39
- Storrs39
- Suffield Depot39
- Tariffville39
- Terramuggus39
- Thompsonville39
- Waterford town39
- Weatogue39
- West Simsbury39
- Willimantic39
- Windsor39
- Windsor Locks39
- Ashford38
- Fairfield38
- Lisbon38
- Mansfield Center38
- North Granby38
- Stafford38
- Stafford Springs38
- Torrington38
- Torrington town38
- Waterbury38
- Winsted38
- Jewett City37
- Northwest Hills37
- Riverton37
- West Hartford37
- Danielson35
- East Brooklyn35
- Mechanicsville35
- Moosup35
- North Grosvenor Dale35
- Northeastern Connecticut35
- Plainfield Village35
- Pomfret35
- Quasset Lake35
- Quinebaug35
- South Woodstock35
- Wauregan35
- Montville34
- Canaan33
- Simsbury33
- Mansfield32
- Branford31
- Killingly31
- Berlin30
- New Haven29
- Greenwich28
- Old Saybrook28
- Trumbull28
- Groton27
- Bridgeport26
- Cornwall26
- Glastonbury25
- Newtown24
- Tolland23
- Danbury22
- Deep River22
- Guilford22
- Lyme22
- Enfield21
- Killingworth21
- Shelton21
- Sherman21
- Waterford21
- Canterbury20
- Lebanon19
- Milford town19
- New Canaan19
- Winchester19
- Oxford18
- Essex Village17
- Hebron14
- West Mountain13
- Woodbury12
- Colebrook6
- Cheshire3
- Canton2
