Air quality in Connecticut
Air quality index (AQI⁺) and PM2.5 air pollution in Connecticut • 21:59, Sep 10
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?
- New Canaan169
- Madison88
- Waterbury75
- Groton65
- Essex Village59
- Byram57
- Cannondale57
- Cos Cob57
- Coventry57
- Darien Downtown57
- Glenville57
- Greater Bridgeport57
- Greens Farms57
- Greenwich town57
- Norwalk57
- Old Greenwich57
- Pemberwick57
- Riverside57
- Rock Ridge57
- Saugatuck57
- Southport57
- Stamford57
- Weston57
- Westport57
- Wilton Center57
- Ansonia56
- Ashford56
- Baltic56
- Bethel56
- Bigelow Corners56
- Blue Hills56
- Branford Center56
- Capitol56
- Cheshire Village56
- Chester Center56
- Clinton56
- Colchester56
- Conning Towers-Nautilus Park56
- Coventry Lake56
- Cromwell56
- Crystal Lake56
- Danielson56
- Deep River Center56
- Derby56
- Durham56
- East Brooklyn56
- East Hampton56
- Ellington56
- Farmington56
- Fenwick56
- Gales Ferry56
- Glastonbury Center56
- Guilford Center56
- Heritage Village56
- Higganum56
- Jewett City56
- Kensington56
- Lake Pocotopaug56
- Lisbon56
- Long Hill, Southeastern Connecticut County56
- Lordship56
- Lower Connecticut River Valley56
- Madison Center56
- Manchester56
- Mansfield Center56
- Mashantucket56
- Mechanicsville56
- Meriden56
- Middlebury56
- Middletown56
- Milford56
- Moodus56
- Moosup56
- Mystic56
- Naugatuck56
- Naugatuck Valley56
- New Britain56
- New London56
- Newington56
- Niantic56
- Noank56
- North Grosvenor Dale56
- North Haven56
- Northeastern Connecticut56
- Northford56
- Norwich56
- Oakville56
- Old Lyme56
- Old Mystic56
- Old Saybrook Center56
- Orange56
- Oronoque56
- Oxoboxo River56
- Pawcatuck56
- Plainfield Village56
- Plainville56
- Plantsville56
- Poquonock Bridge56
- Portland56
- Prospect56
- Quasset Lake56
- Quinebaug56
- Quinnipiac University56
- Redding Center56
- Ridgefield56
- Rockville56
- Salem56
- Sandy Hook56
- Saybrook Manor56
- Seymour56
- South Central Connecticut56
- South Coventry56
- South Windham56
- South Windsor56
- South Woodstock56
- Southeastern Connecticut56
- Southington56
- Stafford56
- Stafford Springs56
- Storrs56
- Stratford56
- Tashua56
- Terramuggus56
- Trumbull Center56
- Wallingford56
- Wallingford Center56
- Watertown56
- Wauregan56
- West Haven56
- Westbrook Center56
- Western Connecticut56
- Wethersfield56
- Willimantic56
- Woodbridge56
- Woodbury Center56
- Woodmont56
- Bethlehem Village55
- Bristol55
- Broad Brook55
- Canton55
- Canton Valley55
- Collinsville55
- Gaylordsville55
- Hazardville55
- Litchfield55
- New Hartford Center55
- New Milford55
- New Preston55
- North Granby55
- Northwest Harwinton55
- Northwest Hills55
- Plymouth55
- Salmon Brook55
- Sherwood Manor55
- Simsbury Center55
- Somers55
- Southwood Acres55
- Suffield Depot55
- Tariffville55
- Terryville55
- Thomaston55
- Thompsonville55
- Torrington55
- Torrington town55
- Washington55
- Weatogue55
- West Simsbury55
- Windsor Locks55
- Riverton54
- Winsted54
- Canaan49
- Plainfield45
- Waterford44
- Fairfield39
- Montville39
- Windsor39
- New Haven38
- East Hartford37
- Lyme37
- Cornwall36
- Danbury36
- Trumbull36
- Shelton35
- Berlin34
- Deep River34
- Hartford34
- Pomfret34
- Bolton32
- Bridgeport32
- Canterbury32
- Killingworth32
- Lebanon32
- Mansfield32
- Branford31
- West Hartford31
- Oxford30
- Glastonbury29
- Winchester29
- Hamden28
- East Haven27
- Newtown27
- Sherman25
- Hebron24
- Tolland24
- Guilford23
- Greenwich22
- Killingly22
- Old Saybrook22
- Milford town21
- Woodbury19
- Colebrook18
- Enfield17
- Cheshire12
- Waterford town12
- Simsbury11
- West Mountain3
- Redding0
