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Air quality in Colorado
Air quality index (AQI) and PM2.5 air pollution in Colorado
LIVE AQI CITY RANKING
Real-time Colorado
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Gothic | 46 |
| 2 | Central City | 41 |
| 3 | Mancos | 39 |
| 4 | Estes Park | 37 |
| 5 | Greeley | 35 |
| 6 | Dove Creek | 34 |
| 7 | Manitou Springs | 33 |
| 8 | Towaoc | 33 |
| 9 | Castle Rock | 30 |
| 10 | Florence | 28 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
418 Contributors
See all
LIVE AQI CITY RANKING
Real-time Colorado
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Burlington | 0 |
| 2 | Conifer | 0 |
| 3 | Lamar | 4 |
| 4 | Wellington | 5 |
| 5 | Routt | 6 |
| 6 | Steamboat Springs | 7 |
| 7 | Woodmoor | 7 |
| 8 | Eagle | 8 |
| 9 | Alamosa | 9 |
| 10 | Hayden | 9 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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The latest air quality news and resources.
Colorado air quality data attribution
418Contributors
- California Air Resources Board (CARB)
2 stations
- Utah Division of Air Quality
2 stations
- Utah Air Quality
1 station
- USA National Park Service
2 stations
5 Government Contributors
- Coalition for Clean Air (CCA)
8 stations
Non-profit organization Contributor
Utah State University (USU)1 station
- Anonymous
1 station
2 Educational Contributors
Cheryl Swanson1 station
- B Brenner
1 station
Ken Danti1 station
- Russ Stewart
1 station
- Matt Maccaux
1 station
john1 station
- SxSmith
1 station
Ed K1 station
TyW1 station
Shawn Vezzani1 station
- mckay&zuni
1 station
L1 station
- John Baum
1 station
- Mark Baybutt
1 station
Aaron Bieber1 station
- BeyondAir
1 station
- Dilan Weerasinghe
1 station
- John Salzman
1 station
- kleinp
1 station
wyndham center1 station
20 Individual Contributors
390 Anonymous contributors390 stations
390 Anonymous Contributors
Which is the most polluted city in Colorado?
- Gothic 46
- Watkins 42
- Central City 41
- Welby 41
- Pueblo West 40
- Mancos 39
- Mesa Verde National Park 38
- Estes Park 37
- Greeley 35
- Dove Creek 34
- Manitou Springs 33
- Towaoc 33
- U.S. Air Force Academy 31
- Castle Rock 30
- Florence 28
- Fort Morgan 25
- Thornton 24
- Fruitvale 23
- Redlands 23
- San Luis 23
- Windsor 22
- Clifton 20
- Fruita 20
- Westcliffe 20
- Berthoud 19
- Brush 19
- Del Norte 19
- Eaton 19
- Fort Lupton 19
- Grand Junction 19
- Orchard Mesa 19
- Salida 19
- Severance 19
- Aurora 18
- Collbran 18
- Delta 18
- Denver 18
- Highlands Ranch 18
- Mesa 18
- Morrison 18
- Palisade 18
- Bayfield 17
- Boulder 17
- Canon City 17
- Castle Pines 17
- Colorado Springs 17
- Edgewater 17
- Ken Caryl 17
- La Junta 17
- Lafayette 17
- Lakewood 17
- Longmont 17
- Nederland 17
- Silt 17
- Silverton 17
- Akron 16
- Arvada 16
- Creede 16
- Durango 16
- Englewood 16
- Fort Collins 16
- Golden 16
- Littleton 16
- Louisville 16
- Loveland 16
- Niwot 16
- Ouray 16
- Parker 16
- Pueblo 16
- Roxborough Park 16
- Sterling 16
- Superior 16
- Twin Lakes 16
- Aguilar 15
- Basalt 15
- Black Forest 15
- Broomfield 15
- Commerce City 15
- Cortez 15
- El Jebel 15
- Erie 15
- Evergreen 15
- Florissant 15
- Glenwood Springs 15
- Gunnison 15
- Gypsum 15
- Indian Hills 15
- Lyons 15
- New Castle 15
- Pagosa Springs 15
- Ault 14
- Carbondale 14
- Evans 14
- Genesee 14
- Gleneagle 14
- Gunbarrel 14
- Kersey 14
- Kremmling 14
- Montrose 14
- Woodland Park 14
- Cedaredge 13
- Centennial 13
- Colorado City 13
- Crested Butte 13
- Fairplay 13
- Granby 13
- Greenwood Village 13
- Johnstown 13
- La Salle 13
- Laporte 13
- Leadville 13
- Livermore 13
- Milliken 13
- Parachute 13
- Ponderosa Park 13
- Aspen 12
- Campion 12
- Edwards 12
- Fraser 12
- Gilcrest 12
- Hot Sulphur Springs 12
- Keenesburg 12
- Meeker 12
- Platteville 12
- Snowmass Village 12
- Vail 12
- Walden 12
- Yuma 12
- Aristocrat Ranchettes 11
- Bennett 11
- Brighton 11
- Byers 11
- Dacono 11
- Derby 11
- Firestone 11
- Frederick 11
- Frisco 11
- Hudson 11
- Limon 11
- Lochbuie 11
- Mead 11
- Strasburg 11
- Telluride 11
- Todd Creek 11
- Avon 10
- Berkley 10
- Breckenridge 10
- Castlewood 10
- Cherry Creek 10
- Cherry Hills Village 10
- Dove Valley 10
- Eads 10
- Federal Heights 10
- Glendale 10
- Holly Hills 10
- Hugo 10
- Inverness 10
- Julesburg 10
- Keystone 10
- Meridian 10
- Northglenn 10
- Olathe 10
- Orchard City 10
- Shaw Heights 10
- Sherrelwood 10
- Silverthorne 10
- Stonegate 10
- Westminster 10
- Wheat Ridge 10
- Acres Green 9
- Air Force Academy 9
- Alamosa 9
- Applewood 9
- Carriage Club 9
- Castle Pines North 9
- Cheyenne Wells 9
- Cimarron Hills 9
- Columbine 9
- Columbine Valley 9
- Craig 9
- Elizabeth 9
- Ellicott 9
- Fountain 9
- Glen Eden 9
- Hayden 9
- Ignacio 9
- Kiowa 9
- Lone Tree 9
- Monument 9
- Palmer Lake 9
- Paonia 9
- Security-Widefield 9
- Sheridan 9
- Southglenn 9
- Stratmoor 9
- The Pinery 9
- West Pleasant View 9
- Bedrock 8
- Cascade-Chipita Park 8
- Center 8
- Coal Creek 8
- Cripple Creek 8
- Eagle 8
- Lake City 8
- Monte Vista 8
- Mountain Village 8
- Penrose 8
- Perry Park 8
- Rangely 8
- Alamosa East 7
- Battlement Mesa 7
- Conejos 7
- Fort Carson 7
- Fowler 7
- Kittredge 7
- Las Animas 7
- Leadville North 7
- Lincoln Park 7
- Loma 7
- Minturn 7
- Ordway 7
- Rifle 7
- Rocky Ford 7
- Saguache 7
- Springfield 7
- Steamboat Springs 7
- Woodmoor 7
- Buena Vista 6
- Holyoke 6
- Idaho Springs 6
- Park 6
- Routt 6
- Trinidad 6
- Upper Bear Creek 6
- Walsenburg 6
- Wray 6
- Georgetown 5
- Wellington 5
- Lamar 4
- Burlington 0
- Conifer 0
AQI US, Metric