Air quality in Colorado
Air quality index (AQIāŗ) and PM2.5 air pollution in Colorado ā¢ 03:00, Nov 02
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 HagemanSxSmithSteamboatairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyQHJCEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerMemorial Regional HealthEmily StonehamAnonymousKay LewisKatie GirondaEd 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 HagemanSxSmithSteamboatairRed Pony FarmLu VenclBeyondAirRabbit Mountain Equestrian CenterTyWShawn VezzaniphshrcoJNKennen WarmackByron BoyKen DantiJohn Baumamorris101Cheryl SwansonHaley Kline MurphyQHJCEPA Office of Atmospheric ProtectionRodeoJohn MannerB BrennerMemorial Regional HealthEmily StonehamAnonymousKay LewisKatie GirondaEd KDDenAnonymous contributor
Live most polluted city ranking
Real-time Colorado most polluted city ranking
Wildfires in Colorado
Real-time information
Active fires
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Learn more about global air quality
Which is the most polluted city in Colorado?
- Shaw Heights70
- Federal Heights68
- Brighton64
- Lakeside64
- Thornton62
- Westminster62
- Northglenn61
- Commerce City60
- Erie60
- Broomfield59
- Gunbarrel58
- Lafayette58
- Louisville58
- Paragon Estates58
- Twin Lakes, Adams County58
- Welby58
- Denver57
- Wheat Ridge57
- Fort Lupton56
- Longmont56
- Manitou Springs56
- Sherrelwood55
- Superior55
- Sheridan54
- Centennial53
- Derby53
- Timnath53
- Arvada52
- Florence52
- Boulder49
- Red Feather Lakes49
- Windsor49
- Julesburg48
- Mountain View48
- Berthoud47
- Boulder County47
- Colorado City47
- Prowers47
- Fort Collins46
- Glendale, Arapahoe County46
- Littleton46
- Aurora44
- Greeley44
- Loveland44
- Frederick43
- Burlington42
- Four Square Mile42
- Edgewater41
- Silverton41
- Eldorado Springs40
- Cherry Creek39
- Parker39
- Pueblo39
- Pueblo West38
- Kit Carson County37
- Sugar City37
- Applewood36
- Arapahoe County36
- Grand County36
- Altona35
- Archuleta34
- Baca County34
- Black Hawk34
- Crowley34
- Eaton34
- Severance34
- Walsh34
- Ault33
- Englewood33
- Evans33
- Green Mountain Falls33
- La Salle33
- Milliken33
- Olney Springs33
- Woodland Park33
- Aetna Estates32
- Aspen32
- Gilcrest32
- Gunnison County32
- Kersey32
- Lakewood32
- Lamar32
- Ward32
- CaƱon City31
- Dakota Ridge31
- Mead31
- Firestone30
- Highlands Ranch30
- Weld30
- Wellington30
- Aristocrat Ranchettes29
- Castle Pines Village29
- Laporte29
- Leadville29
- Dacono28
- Golden28
- Hudson28
- Keenesburg28
- Lazy Acres28
- Lochbuie28
- Sterling Ranch28
- Swink28
- Monument27
- Todd Creek27
- Bennett26
- Douglas26
- Fowler26
- Larimer26
- Montezuma County26
- Niwot26
- Dolores County24
- Greenwood Village24
- La Junta24
- La Plata County24
- Salida24
- Grover23
- Palmer Lake23
- Platteville23
- Valmont23
- Berkley22
- Tabernash22
- Teller22
- Watkins22
- Carbondale21
- Cherry Hills Village21
- Dove Valley21
- Elbert County21
- Fruita21
- Inverness21
- Mesa21
- Otero County21
- Pueblo County21
- Rocky Ford21
- Acres Green20
- Cortez20
- Lone Tree20
- Meridian20
- Meridian Village20
- Ponderosa Park20
- Stonegate20
- Strasburg20
- The Pinery20
- Air Force Academy19
- Byers19
- Columbine19
- Columbine Valley19
- Fairmount19
- Gleneagle19
- Jefferson19
- Kiowa19
- Louviers19
- Sedalia19
- Springfield19
- Woodmoor19
- Cimarron Hills18
- Clifton18
- Ellicott18
- Estes Park18
- Fort Morgan18
- Fountain18
- Lake City18
- Perry Park18
- Rifle18
- Security-Widefield18
- West Pleasant View18
- Brush17
- Castle Rock17
- Crook17
- El Paso17
- Estes Park town17
- Evergreen17
- Fort Carson17
- Holyoke17
- Idaho Springs17
- Lyons17
- Roxborough Park17
- Wray17
- Buena Vista16
- Colorado Springs16
- Delta16
- Indian Hills16
- Logan County16
- Manzanola16
- Park County16
- Sterling16
- Akron15
- Bethune15
- Cheyenne Wells15
- Kittredge15
- Ordway15
- Wiley15
- Yuma15
- Aguilar14
- Castle Pines14
- Cheraw14
- Cripple Creek14
- Eads14
- Genesee14
- Las Animas14
- Limon14
- Mancos14
- Penrose14
- Silt14
- Alma13
- Winter Park13
- Beulah Valley12
- Brookside12
- Costilla County12
- Florissant12
- Lincoln Park12
- Nederland12
- Stratmoor12
- Trail Side12
- Alamosa11
- Central11
- Granby11
- Keystone11
- Pitkin County11
- Vail11
- Westcliffe11
- Silverthorne10
- Summit10
- Upper Bear Creek10
- Avon9
- Cascade-Chipita Park9
- Eagle County9
- Glenwood Springs9
- Grand Junction9
- Palisade9
- Basalt8
- Chaffee County8
- Copper Mountain8
- Durango8
- Ouray8
- Redlands8
- Saguache8
- Walsenburg8
- Craig7
- Custer County7
- Edwards7
- Hot Sulphur Springs7
- Poncha Springs7
- Trinidad7
- Alamosa East6
- Battlement Mesa6
- Breckenridge6
- Cattle Creek6
- Center6
- Clear Creek County6
- Collbran6
- Crested Butte6
- Crestone6
- Del Norte6
- Dillon6
- Dove Creek6
- Eagle6
- Fairplay6
- Fraser6
- Frisco6
- Fruitvale6
- Garfield6
- Georgetown6
- Gunnison6
- Gypsum6
- Hayden6
- Kremmling6
- Leadville North6
- Loma6
- Maysville6
- Minturn6
- Monte Vista6
- Montrose6
- Montrose County6
- Mount Crested Butte6
- Mountain Village6
- New Castle6
- Olathe6
- Orchard City6
- Orchard Mesa6
- Ouray County6
- Paonia6
- Parachute6
- Rangely6
- Rio Blanco6
- Saguache County6
- San Luis6
- San Miguel County6
- Steamboat Springs6
- Walden6
- Wolcott6
- Garfield County5
- Nathrop5
- Snowmass Village5
- Telluride5
- Black Forest4
- Delta County4
- Hugo4
- Lake4
- Moffat County4
- Oak Creek4
- Ken Caryl3
- Pagosa Springs3
- Bayfield2
- Cedaredge2
- Routt County2
- Conejos1
- Dolores1
- Alamosa County0
- Aspen Park0
- Coal Creek, Jefferson County0
- El Jebel0
- Holly Hills0
- Ignacio0
- Towaoc0
