Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ⢠03:38, Nov 05
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberS ForestDilan WeerasingheLTom FullerGeorgeLynchCoalition for Clean Air (CCA)USA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersE StationJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithairSteamboatRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Haley Kline MurphyCheryl SwansonQHJCEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerMemorial Regional HealthEmily StonehamAnonymousKatie GirondaKay LewisEd KDDenAnonymous contributor
Colorado Department of Public Health & Environment (CDPHE)wyndham centerRuss StewartMatt MaccauxAaron BieberS ForestDilan WeerasingheLTom FullerGeorgeLynchCoalition for Clean Air (CCA)USA National Park ServicejohnCalifornia Air Resources Board (CARB)mckay&zuniSharksWithLazersE StationJSouthern Ute TribeUtah State University (USU)John SalzmanT HagemanSxSmithairSteamboatRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Haley Kline MurphyCheryl SwansonQHJCEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerMemorial Regional HealthEmily StonehamAnonymousKatie GirondaKay LewisEd KDDenAnonymous contributor
Live most polluted city ranking
Real-time Colorado most polluted city ranking
Wildfires in Colorado
Real-time informationActive fires
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Learn more about global air quality
Which is the most polluted city in Colorado?
- Lake City88
- Cortez62
- Gunnison County61
- Center55
- Upper Bear Creek52
- Alma45
- Oak Creek41
- Gold Hill40
- Montezuma County40
- La Plata County39
- Leadville39
- West Pleasant View39
- Mesa38
- Aspen37
- Estes Park36
- Evergreen36
- Mancos36
- Black Hawk34
- Clifton34
- Applewood33
- Dolores County33
- Grand County33
- Pueblo West33
- Rifle33
- Winter Park33
- Douglas32
- Loveland32
- Dolores31
- Greeley31
- Idaho Springs31
- Larimer31
- Centennial30
- Palmer Lake30
- Commerce City29
- Dacono29
- Federal Heights29
- Fort Collins29
- Lake29
- Todd Creek29
- Valmont29
- Aristocrat Ranchettes28
- Bayfield28
- Berkley28
- Buena Vista28
- Colorado City28
- Fairmount28
- Firestone28
- Lakeside28
- Lochbuie28
- Logan County28
- Manitou Springs28
- Niwot28
- Roxborough Park28
- Four Square Mile27
- Golden27
- Holly Hills27
- Jefferson27
- Mead27
- Monument27
- Timnath27
- Weld27
- Boulder26
- Cherry Hills Village26
- El Paso26
- Gilcrest26
- Paragon Estates26
- Cherry Creek25
- Columbine Valley25
- Derby25
- Milliken25
- Orchard Mesa25
- Acres Green24
- Columbine24
- Dakota Ridge24
- Dove Valley24
- Edgewater24
- Hudson24
- Inverness24
- Lone Tree24
- Meridian24
- Park County24
- Shaw Heights24
- Teller24
- Wellington24
- Aspen Park23
- Bennett23
- Eldorado Springs23
- Gunbarrel23
- Lafayette23
- Lazy Acres23
- Longmont23
- Louviers23
- Meridian Village23
- Northglenn23
- Parker23
- Platteville23
- Stonegate23
- Westminster23
- Woodland Park23
- Berthoud22
- Denver22
- Estes Park town22
- Evans22
- Highlands Ranch22
- Indian Hills22
- Keenesburg22
- Kittredge22
- La Salle22
- Sedalia22
- Severance22
- Sheridan22
- The Pinery22
- Trail Side22
- Ward22
- Watkins22
- Welby22
- Louisville21
- Silverton21
- Tabernash21
- Lakewood20
- Mountain View20
- Superior20
- Thornton20
- Archuleta19
- Ault19
- Central19
- Eaton19
- Genesee19
- Hayden19
- Kersey19
- Keystone19
- Laporte19
- Littleton19
- Nederland19
- Perry Park19
- Ponderosa Park19
- Red Feather Lakes19
- Sherrelwood19
- Altona18
- Arvada18
- Black Forest18
- Brighton18
- Twin Lakes, Adams County18
- Windsor18
- Air Force Academy17
- Aurora17
- Burlington17
- Castle Rock17
- Cedaredge17
- Cimarron Hills17
- Fort Carson17
- Fountain17
- Frederick17
- Gleneagle17
- Rio Blanco17
- Security-Widefield17
- Sterling Ranch17
- Vail17
- Woodmoor17
- Aguilar16
- Cripple Creek16
- Durango16
- Florissant16
- Grand Junction16
- Kiowa16
- Lyons16
- Prowers16
- Redlands16
- Silt16
- Alamosa15
- Battlement Mesa15
- Colorado Springs15
- Rangely15
- Saguache15
- Arapahoe County14
- Castle Pines Village14
- Chaffee County14
- Collbran14
- El Jebel14
- Englewood14
- Fort Lupton14
- Greenwood Village14
- New Castle14
- Orchard City14
- Palisade14
- Parachute14
- Penrose14
- Boulder County13
- Brookside13
- Castle Pines13
- Cattle Creek13
- Clear Creek County13
- Elbert County13
- Ellicott13
- Fraser13
- Garfield County13
- Georgetown13
- Granby13
- Gunnison13
- Hot Sulphur Springs13
- Julesburg13
- Lincoln Park13
- Paonia13
- Snowmass Village13
- Towaoc13
- Beulah Valley12
- Broomfield12
- Carbondale12
- Custer County12
- Florence12
- Loma12
- Olathe12
- Pagosa Springs12
- Akron11
- Bethune11
- Brush11
- CaƱon City11
- Craig11
- Crestone11
- Crook11
- Eagle11
- Erie11
- Fort Morgan11
- Fruita11
- Fruitvale11
- Grover11
- Gypsum11
- Holyoke11
- Hugo11
- Kit Carson County11
- Kremmling11
- Montrose11
- Montrose County11
- Mountain Village11
- Ouray County11
- Pueblo11
- Saguache County11
- San Miguel County11
- Silverthorne11
- Sterling11
- Strasburg11
- Sugar City11
- Walden11
- Walsenburg11
- Westcliffe11
- Wheat Ridge11
- Wolcott11
- Wray11
- Yuma11
- Dillon10
- Ignacio10
- Lamar10
- Alamosa County9
- Byers9
- Conejos9
- Crested Butte9
- Delta9
- Dove Creek9
- Eagle County9
- Frisco9
- Mount Crested Butte9
- Pitkin County9
- Summit9
- Alamosa East8
- Baca County8
- Cheyenne Wells8
- Del Norte8
- Delta County8
- Fairplay8
- Garfield8
- Leadville North8
- Limon8
- Mineral8
- Minturn8
- Monte Vista8
- Ordway8
- Routt County8
- San Luis8
- Steamboat Springs8
- Telluride8
- Cheraw7
- Costilla County7
- Pueblo County7
- Walsh7
- Cascade-Chipita Park6
- Crowley6
- Eads6
- Las Animas6
- Otero County6
- Rocky Ford6
- Springfield6
- Trinidad6
- Wiley6
- Breckenridge5
- La Junta5
- Moffat County5
- Poncha Springs5
- Coal Creek, Jefferson County4
- Edwards4
- Green Mountain Falls4
- Manzanola4
- Salida4
- Basalt3
- Copper Mountain3
- Glenwood Springs3
- Olney Springs3
- Swink3
- Fowler2
- Nathrop2
- Ken Caryl1
- Ouray1
- Aetna Estates0
- Avon0
- Glendale, Arapahoe County0
- Maysville0
- Stratmoor0









