Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 00:38, Aug 25
Live most polluted city ranking
Real-time Connecticut most polluted city ranking
Wildfires in Connecticut
Real-time information
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Which is the most polluted city in Connecticut?
- Greenwich68
- Hamden56
- Waterbury53
- Cornwall52
- Byram51
- Cos Cob51
- Glenville51
- Old Greenwich51
- Pemberwick51
- Riverside51
- Rock Ridge51
- Stamford51
- Darien Downtown50
- Fairfield49
- Hartford49
- Pawcatuck49
- East Haven48
- Mystic48
- Noank48
- Norwalk48
- Old Mystic48
- Poquonock Bridge48
- Conning Towers-Nautilus Park47
- Danbury47
- Long Hill, Southeastern Connecticut County47
- New London47
- Saugatuck47
- Fenwick46
- Gales Ferry46
- Greens Farms46
- Mashantucket46
- Niantic46
- Old Saybrook Center46
- Old Lyme45
- Saybrook Manor45
- Cannondale44
- Clinton44
- Essex Village44
- Lordship44
- Madison Center44
- Oxoboxo River44
- Ridgefield44
- Southeastern Connecticut44
- Southport44
- Westbrook Center44
- Weston44
- Wilton Center44
- Ansonia43
- Baltic43
- Bethel43
- Bigelow Corners43
- Branford Center43
- Chester Center43
- Coventry43
- Deep River Center43
- Derby43
- Greater Bridgeport43
- Guilford Center43
- Jewett City43
- Lisbon43
- Lower Connecticut River Valley43
- Milford43
- Moosup43
- Norwich43
- Orange43
- Oronoque43
- Plainfield Village43
- Redding43
- Redding Center43
- Salem43
- South Central Connecticut43
- Tashua43
- Trumbull Center43
- West Haven43
- Western Connecticut43
- Woodmont43
- Bethlehem Village42
- Canaan42
- Cheshire Village42
- Colchester42
- Danielson42
- Durham42
- East Brooklyn42
- East Hampton42
- Gaylordsville42
- Heritage Village42
- Higganum42
- Lake Pocotopaug42
- Litchfield42
- Meriden42
- Middlebury42
- Middletown42
- Moodus42
- Naugatuck42
- Naugatuck Valley42
- New Milford42
- New Preston42
- North Haven42
- Northford42
- Oakville42
- Prospect42
- Quinnipiac University42
- Sandy Hook42
- Seymour42
- South Windham42
- Trumbull42
- Wallingford42
- Wallingford Center42
- Washington42
- Watertown42
- Wauregan42
- Woodbridge42
- Woodbury Center42
- Ashford41
- Blue Hills41
- Bristol41
- Broad Brook41
- Canton41
- Canton Valley41
- Capitol41
- Collinsville41
- Coventry Lake41
- Cromwell41
- Crystal Lake41
- Ellington41
- Farmington41
- Glastonbury Center41
- Hazardville41
- Kensington41
- Manchester41
- Mansfield Center41
- Mechanicsville41
- New Britain41
- New Canaan41
- New Hartford Center41
- Newington41
- North Granby41
- North Grosvenor Dale41
- Northeastern Connecticut41
- Northwest Harwinton41
- Northwest Hills41
- Plainville41
- Plantsville41
- Plymouth41
- Portland41
- Quasset Lake41
- Quinebaug41
- Riverton41
- Rockville41
- Salmon Brook41
- Simsbury Center41
- South Coventry41
- South Windsor41
- South Woodstock41
- Southington41
- Southwood Acres41
- Stafford Springs41
- Storrs41
- Suffield Depot41
- Tariffville41
- Terramuggus41
- Terryville41
- Thomaston41
- Thompsonville41
- Torrington41
- Torrington town41
- Weatogue41
- West Simsbury41
- Wethersfield41
- Willimantic41
- Windsor41
- Windsor Locks41
- Winsted41
- Sherwood Manor40
- Somers40
- East Hartford39
- Killingly39
- Old Saybrook39
- Sherman39
- Simsbury39
- Canterbury38
- Madison37
- Berlin36
- Bridgeport36
- Groton36
- Mansfield36
- Winchester34
- Deep River33
- Lyme33
- New Haven32
- Waterford32
- West Hartford32
- Lebanon30
- Westport29
- Branford28
- Glastonbury28
- Oxford28
- Killingworth27
- Stafford26
- Stratford25
- Enfield24
- Milford town24
- Greenwich town23
- Guilford23
- Montville22
- Plainfield22
- Shelton22
- Pomfret20
- Tolland20
- Newtown19
- West Mountain16
- Woodbury14
- Colebrook9
- Waterford town6
- Hebron5
- Cheshire3
