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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 | Ignacio | 111 |
| 2 | Dove Creek | 59 |
| 3 | Florence | 53 |
| 4 | Gothic | 47 |
| 5 | Central City | 46 |
| 6 | Mancos | 45 |
| 7 | Greeley | 43 |
| 8 | Pueblo | 41 |
| 9 | Fort Lupton | 40 |
| 10 | Golden | 39 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
412 Contributors
See all
LIVE AQI CITY RANKING
Real-time Colorado
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Canon City | 1 |
| 2 | Julesburg | 7 |
| 3 | Breckenridge | 11 |
| 4 | Creede | 11 |
| 5 | Routt | 11 |
| 6 | Conifer | 12 |
| 7 | Crested Butte | 12 |
| 8 | Eagle | 12 |
| 9 | Genesee | 12 |
| 10 | Kremmling | 12 |
(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
412Contributors
- Utah Air Quality
2 stations
- California Air Resources Board (CARB)
2 stations
- Utah Division of Air Quality
2 stations
- USA National Park Service
2 stations
5 Government Contributors
- Coalition for Clean Air (CCA)
8 stations
Non-profit organization Contributor
Utah State University (USU)2 stations
- 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
384 Anonymous contributors384 stations
384 Anonymous Contributors
Which is the most polluted city in Colorado?
- Ignacio 111
- Dove Creek 59
- Florence 53
- Fowler 47
- Gothic 47
- Central City 46
- Mancos 45
- Ordway 44
- Greeley 43
- Mesa Verde National Park 43
- Las Animas 41
- Pueblo 41
- Rocky Ford 41
- Fort Lupton 40
- Golden 39
- Towaoc 39
- Colorado Springs 37
- Ellicott 36
- Pueblo West 35
- Fountain 34
- Welby 34
- Commerce City 33
- Security-Widefield 33
- Hugo 32
- Limon 32
- Littleton 32
- Thornton 32
- Cimarron Hills 31
- Ponderosa Park 31
- Stratmoor 31
- Windsor 31
- Evergreen 30
- Bennett 29
- Byers 29
- Severance 29
- Strasburg 29
- Watkins 29
- Woodmoor 29
- Burlington 28
- Castle Rock 28
- Centennial 28
- Kiowa 28
- La Junta 28
- U.S. Air Force Academy 28
- Westminster 28
- Aristocrat Ranchettes 27
- Brighton 27
- Hudson 27
- Keenesburg 27
- Lochbuie 27
- Platteville 27
- Air Force Academy 26
- Aurora 26
- Berthoud 26
- Dacono 26
- Elizabeth 26
- Erie 26
- Evans 26
- Firestone 26
- Frederick 26
- Gilcrest 26
- Highlands Ranch 26
- La Salle 26
- Lakewood 26
- Mead 26
- Milliken 26
- Todd Creek 26
- Broomfield 25
- Cascade-Chipita Park 25
- Denver 25
- Eaton 25
- Fruitvale 25
- Johnstown 25
- Kersey 25
- Lafayette 25
- Palmer Lake 25
- Westcliffe 25
- Derby 24
- Fort Collins 24
- Lamar 24
- Loveland 24
- San Luis 24
- Stonegate 24
- Brush 23
- Campion 23
- Dove Valley 23
- Fort Morgan 23
- Greenwood Village 23
- Inverness 23
- Meridian 23
- Mesa 23
- Parker 23
- Penrose 23
- Ault 22
- Cedaredge 22
- Cherry Creek 22
- Clifton 22
- Cripple Creek 22
- Glendale 22
- Lone Tree 22
- Longmont 22
- Northglenn 22
- Redlands 22
- Springfield 22
- Acres Green 21
- Akron 21
- Arvada 21
- Carriage Club 21
- Castle Pines 21
- Castle Pines North 21
- Castlewood 21
- Delta 21
- Eads 21
- Federal Heights 21
- Grand Junction 21
- Holly Hills 21
- Palisade 21
- Perry Park 21
- Roxborough Park 21
- Sherrelwood 21
- Aguilar 20
- Berkley 20
- Cherry Hills Village 20
- Cheyenne Wells 20
- Gleneagle 20
- Indian Hills 20
- Morrison 20
- Salida 20
- Southglenn 20
- Boulder 19
- Edgewater 19
- Englewood 19
- Glenwood Springs 19
- Laporte 19
- Montrose 19
- Orchard Mesa 19
- Pagosa Springs 19
- Silt 19
- Alamosa 18
- Bayfield 18
- Black Forest 18
- Columbine Valley 18
- Fruita 18
- Gunnison 18
- Ken Caryl 18
- Lincoln Park 18
- Nederland 18
- Niwot 18
- Ouray 18
- Paonia 18
- Parachute 18
- Shaw Heights 18
- Sheridan 18
- Silverton 18
- Telluride 18
- Wheat Ridge 18
- Yuma 18
- Basalt 17
- Carbondale 17
- Columbine 17
- Cortez 17
- Del Norte 17
- Durango 17
- Edwards 17
- El Jebel 17
- Granby 17
- Gypsum 17
- Holyoke 17
- Livermore 17
- Lyons 17
- Sterling 17
- Woodland Park 17
- Wray 17
- Applewood 16
- Colorado City 16
- Florissant 16
- Hot Sulphur Springs 16
- Leadville 16
- Louisville 16
- Meeker 16
- New Castle 16
- Twin Lakes 16
- Vail 16
- Wellington 16
- West Pleasant View 16
- Avon 15
- Collbran 15
- Fort Carson 15
- Hayden 15
- Silverthorne 15
- Steamboat Springs 15
- Superior 15
- The Pinery 15
- Aspen 14
- Fraser 14
- Gunbarrel 14
- Lake City 14
- Monument 14
- Snowmass Village 14
- Walsenburg 14
- Alamosa East 13
- Center 13
- Estes Park 13
- Fairplay 13
- Frisco 13
- Keystone 13
- Kittredge 13
- Manitou Springs 13
- Mountain Village 13
- Saguache 13
- Trinidad 13
- Battlement Mesa 12
- Buena Vista 12
- Coal Creek 12
- Conejos 12
- Conifer 12
- Crested Butte 12
- Eagle 12
- Genesee 12
- Kremmling 12
- Monte Vista 12
- Olathe 12
- Orchard City 12
- Park 12
- Rifle 12
- Upper Bear Creek 12
- Walden 12
- Bedrock 11
- Breckenridge 11
- Creede 11
- Leadville North 11
- Minturn 11
- Routt 11
- Craig 10
- Georgetown 10
- Glen Eden 10
- Idaho Springs 10
- Loma 10
- Rangely 10
- Julesburg 7
- Canon City 1
AQI US, Metric