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 | Twin Lakes | 39 |
| 2 | Commerce City | 37 |
| 3 | Greeley | 37 |
| 4 | Windsor | 33 |
| 5 | Rangely | 32 |
| 6 | Pagosa Springs | 30 |
| 7 | Denver | 29 |
| 8 | Derby | 29 |
| 9 | Edgewater | 26 |
| 10 | Rifle | 26 |
(local time)
SEE WORLD AQI RANKINGAir Quality contributors Sources
Data provided by
Contributors
See all
13
LIVE AQI CITY RANKING
Real-time Colorado
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Canon City | 0 |
| 2 | Castle Pines | 0 |
| 3 | Conifer | 0 |
| 4 | The Pinery | 0 |
| 5 | Air Force Academy | 1 |
| 6 | Black Forest | 1 |
| 7 | Boulder | 1 |
| 8 | Buena Vista | 1 |
| 9 | Castle Rock | 1 |
| 10 | Elizabeth | 1 |
(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?
Colorado air quality data sources
Contributors 13
- Air Pollution Control District
3 stations
- California Air Resources Board (CARB)
1 station
Government
- Coalition for Clean Air (CCA)
10 stations
Non-profit organization
- anonymous
1 station
Educational
- The Yan
1 station
- SxSmith
1 station
- Quintin
1 station
- Walter Domes
1 station
- Chrissy
1 station
- Cheryl Swanson
1 station
- kleinp
1 station
Individual
- 370 Anonymous contributor
370 stations
Anonymous
Which is the most polluted city in Colorado?
- Eads99
- Burlington85
- Hugo85
- La Junta85
- Las Animas80
- Yuma76
- Limon57
- Rocky Ford53
- Wray53
- Cheyenne Wells46
- Akron42
- Lamar42
- Twin Lakes39
- Trinidad38
- Commerce City37
- Greeley37
- Brush34
- Holyoke34
- Julesburg34
- Sterling34
- Windsor33
- Rangely32
- Pagosa Springs30
- Denver29
- Derby29
- Edgewater26
- Rifle26
- Byers25
- Hudson25
- Keenesburg25
- Ordway25
- Parachute25
- Aristocrat Ranchettes21
- Bennett21
- Brighton21
- Ellicott21
- Fowler21
- Kersey21
- Kiowa21
- Lochbuie21
- Springfield21
- Strasburg21
- Delta18
- Palisade18
- Ault17
- Berkley17
- Castlewood17
- Cherry Creek17
- Cherry Hills Village17
- Columbine17
- Columbine Valley17
- Dacono17
- Eaton17
- Evans17
- Federal Heights17
- Frederick17
- Gilcrest17
- Glendale17
- Greenwood Village17
- Holly Hills17
- Ignacio17
- Inverness17
- La Salle17
- Northglenn17
- Platteville17
- Shaw Heights17
- Sheridan17
- Sherrelwood17
- Southglenn17
- Thornton17
- Todd Creek17
- Welby17
- Craig15
- Crested Butte15
- Fort Morgan15
- Mesa15
- Alamosa14
- Cortez14
- Colorado City13
- Englewood13
- Littleton13
- Mancos13
- Mesa Verde National Park13
- Montrose13
- Towaoc13
- Westminster13
- Aurora12
- Fort Lupton12
- Milliken11
- Silt11
- Fruitvale10
- Glen Eden10
- Gothic10
- Meeker10
- New Castle10
- Redlands10
- Acres Green9
- Alamosa East9
- Applewood9
- Bedrock9
- Berthoud9
- Campion9
- Carriage Club9
- Castle Pines North9
- Center9
- Cimarron Hills9
- Dove Creek9
- Dove Valley9
- Fountain9
- Fruita9
- Gleneagle9
- Glenwood Springs9
- Grand Junction9
- Gunnison9
- Hayden9
- Idaho Springs9
- Johnstown9
- Ken Caryl9
- Loma9
- Lone Tree9
- Mead9
- Meridian9
- Monte Vista9
- Monument9
- Olathe9
- Orchard City9
- Palmer Lake9
- Penrose9
- Perry Park9
- Pueblo West9
- San Luis9
- Security-Widefield9
- Stonegate9
- Stratmoor9
- Upper Bear Creek9
- Watkins9
- West Pleasant View9
- Westcliffe9
- Woodmoor9
- Del Norte8
- Gypsum8
- Ouray8
- Walsenburg8
- Bayfield7
- Durango7
- Fort Collins7
- Indian Hills7
- Manitou Springs7
- Morrison7
- Paonia7
- Telluride7
- Clifton6
- Colorado Springs6
- Edwards6
- Fort Carson6
- Kittredge6
- Kremmling6
- Orchard Mesa6
- Severance6
- Silverton6
- Carbondale5
- Cascade-Chipita Park5
- Central City5
- Conejos5
- Creede5
- Cripple Creek5
- Fairplay5
- Florissant5
- Georgetown5
- Laporte5
- Leadville North5
- Lincoln Park5
- Minturn5
- Mountain Village5
- Park5
- Saguache5
- Wellington5
- Wheat Ridge5
- Arvada4
- Battlement Mesa4
- Estes Park4
- Evergreen4
- Granby4
- Lake City4
- Routt4
- Steamboat Springs4
- Walden4
- Avon3
- Basalt3
- Cedaredge3
- Centennial3
- Coal Creek3
- Eagle3
- El Jebel3
- Fraser3
- Genesee3
- Lakewood3
- Leadville3
- Loveland3
- Lyons3
- Pueblo3
- Aspen2
- Breckenridge2
- Broomfield2
- Frisco2
- Golden2
- Longmont2
- Roxborough Park2
- Vail2
- Air Force Academy1
- Black Forest1
- Boulder1
- Buena Vista1
- Castle Rock1
- Elizabeth1
- Erie1
- Firestone1
- Florence1
- Gunbarrel1
- Highlands Ranch1
- Hot Sulphur Springs1
- Keystone1
- Lafayette1
- Louisville1
- Nederland1
- Niwot1
- Parker1
- Ponderosa Park1
- Salida1
- Silverthorne1
- Snowmass Village1
- Superior1
- U.S. Air Force Academy1
- Woodland Park1
- Canon City0
- Castle Pines0
- Conifer0
- The Pinery0
