Air quality in Connecticut
Air quality index (AQI) and PM2.5 air pollution in Connecticut
LIVE AQI CITY RANKING
Real-time Connecticut
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Winsted | 61 |
| 2 | Somers | 54 |
| 3 | Naugatuck | 52 |
| 4 | Hamden | 51 |
| 5 | Trumbull | 47 |
| 6 | East Haven | 46 |
| 7 | Middlebury | 45 |
| 8 | South Coventry | 45 |
| 9 | Oxford | 44 |
| 10 | Branford | 41 |
(local time)
SEE WORLD AQI RANKINGAir Quality contributors Sources
Data provided by
14 Anonymous contributor
anonymous
LIVE AQI CITY RANKING
Real-time Connecticut
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Hartford | 27 |
| 2 | Danbury | 29 |
| 3 | Groton | 29 |
| 4 | New Haven | 29 |
| 5 | East Hartford | 30 |
| 6 | Sherman | 30 |
| 7 | West Cornwall | 31 |
| 8 | West Hartford | 32 |
| 9 | Bridgeport | 33 |
| 10 | Waterbury | 35 |
(local time)
SEE WORLD AQI RANKING3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
How to best protect from air pollution?
Connecticut air quality data sources
Contributors 1
- 14 Anonymous contributor
14 stations
Anonymous
Which is the most polluted city in Connecticut?
- Winsted61
- Somers54
- Naugatuck52
- Hamden51
- Trumbull47
- East Haven46
- Middlebury45
- South Coventry45
- Oxford44
- Branford41
- Kent38
- Litchfield38
- New Milford38
- New Preston38
- Torrington38
- West Torrington38
- Northwest Harwinton37
- Westport37
- Waterbury35
- Ansonia34
- Bethel34
- Bethlehem Village34
- Blue Hills34
- Bristol34
- Byram34
- Canaan34
- Canton Valley34
- Cheshire34
- Cheshire Village34
- City of Milford (balance)34
- Collinsville34
- Cos Cob34
- Darien34
- Derby34
- East Norwalk34
- Easton34
- Fairfield34
- Farmington34
- Georgetown34
- Glenville34
- Greenwich34
- Heritage Village34
- Milford34
- New Canaan34
- New Fairfield34
- New Hartford Center34
- Newington34
- Newtown34
- North Granby34
- North Stamford34
- Norwalk34
- Oakville34
- Old Greenwich34
- Orange34
- Pemberwick34
- Plainville34
- Plymouth34
- Prospect34
- Ridgefield34
- Riverside34
- Salmon Brook34
- Seymour34
- Shelton34
- Simsbury Center34
- Southbury34
- Southport34
- Stamford34
- Stratford34
- Tariffville34
- Terryville34
- Thomaston34
- Washington34
- Watertown34
- Weatogue34
- West Haven34
- West Simsbury34
- Wilton34
- Winchester Center34
- Wolcott34
- Woodbridge34
- Woodbury34
- Woodbury Center34
- Woodmont34
- Bridgeport33
- West Hartford32
- West Cornwall31
- East Hartford30
- Sherman30
- Branford Center29
- Chester Center29
- Clinton29
- Coventry Lake29
- Cromwell29
- Crystal Lake29
- Danbury29
- Durham29
- East Haddam29
- East Hampton29
- East Windsor29
- Ellington29
- Enfield29
- Glastonbury29
- Glastonbury Center29
- Groton29
- Guilford29
- Guilford Center29
- Hazardville29
- Higganum29
- Kensington29
- Lake Pocotopaug29
- Madison29
- Madison Center29
- Manchester29
- Mansfield City29
- Meriden29
- Middletown29
- Moodus29
- New Britain29
- New Haven29
- North Branford29
- North Haven29
- Portland29
- Rockville29
- Sherwood Manor29
- South Windsor29
- Southwood Acres29
- Stafford29
- Stafford Springs29
- Storrs29
- Suffield Depot29
- Terramuggus29
- Thompsonville29
- Tolland29
- Wallingford29
- Wallingford Center29
- Westbrook Center29
- Wethersfield29
- Windsor29
- Windsor Locks29
- Hartford27
- Baltic25
- Central Waterford25
- Colchester25
- Conning Towers-Nautilus Park25
- Danielson25
- Deep River Center25
- East Brooklyn25
- Essex Village25
- Gales Ferry25
- Hebron25
- Jewett City25
- Killingly Center25
- Ledyard25
- Lisbon25
- Long Hill25
- Montville Center25
- Moosup25
- New London25
- Niantic25
- North Grosvenor Dale25
- Norwich25
- Old Saybrook25
- Old Saybrook Center25
- Oxoboxo River25
- Plainfield25
- Plainfield Village25
- Pomfret Center25
- Poquonock Bridge25
- Preston City25
- Putnam25
- Quinebaug25
- Salem25
- Saybrook Manor25
- South Windham25
- South Woodstock25
- Thompson25
- Uncasville25
- Waterford25
- Wauregan25
- Willimantic25
- Windham25
- Mystic21
- Noank21
- Old Mystic21
- Pawcatuck21
