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Air quality

Smoke from fires on Western Slope is producing dangerous air quality across much of the state

Smoke from fires on Western Slope is producing dangerous air quality across much of the state

of it is coming from the Lee, Elk and Crosho fires

August 15, 2025

Multiple wildfires burn across Southwest Colorado

Multiple wildfires burn across Southwest Colorado

outside Rico and Pagosa Springs create smoky conditions and cause evacuations, power outages

August 12, 2025

Southern Utes take federal regulatory authority of minor air pollution sources

Southern Utes take federal regulatory authority of minor air pollution sources

is first in the nation to do so, EPA official says

Wildfire smoke prompts air quality alert for much of Southwest Colorado

Wildfire smoke prompts air quality alert for much of Southwest Colorado

that could be impacted include Telluride, Ouray, Silverton, Lake City, Creede and others

New EPA methane emissions rules celebrated by some, cause concern for others

New EPA methane emissions rules celebrated by some, cause concern for others

rules will limit leaks from over 20,000 oil and gas wells in the Four Corners

December 5, 2023

City, fire district to tackle prescribed burns in parks and trails around Durango

City, fire district to tackle prescribed burns in parks and trails around Durango

conditions facilitate winter fire mitigation

December 2, 2023

Colorado could ban sale of gas-powered mowers and blowers beginning in 2025

Colorado could ban sale of gas-powered mowers and blowers beginning in 2025

a move would be a way to get real ozone cuts by 2026, when EPA demands kick in

EPA blames Utah for Colorado ozone pollution

EPA blames Utah for Colorado ozone pollution

Federal agency won’t approve Utah’s clean air plans until they stop violating “good neighbor” rules

San Juan Basin Public Health offers free radon testing workshops

San Juan Basin Public Health offers free radon testing workshops

gas is second-leading cause of lung cancer, and detecting it is easy

January 23, 2023

San Juan Basin Public Health receives EPA grant for air quality monitoring

San Juan Basin Public Health receives EPA grant for air quality monitoring

Department says surveillance of pollutants has been an unmet need in the region

November 5, 2022

EPA tells Polis there’s no getting out of selling reformulated gas to fight ozone

EPA tells Polis there’s no getting out of selling reformulated gas to fight ozone

has threatened to sue over pricier, cleaner gasoline

September 29, 2022

Colorado is falling behind on its mandate to cut greenhouse gases

Colorado is falling behind on its mandate to cut greenhouse gases

state assessment shows big gaps in goals for transportation emissions

September 19, 2022

East Round Top Fire ignites 5 acres on Southern Ute Indian Reservation

East Round Top Fire ignites 5 acres on Southern Ute Indian Reservation

of blaze is under investigation

Could prescribed burns curb the health impacts of wildfires?

Could prescribed burns curb the health impacts of wildfires?

Controlled fire seen as a tool to mitigate some of the harm, report says

Smoke, dust darken Durango skies

Smoke, dust darken Durango skies

burning in Arizona linked to Monday’s haze in Southwest Colorado

Scientists protect their homes from wildfire smoke, poor air quality

Scientists protect their homes from wildfire smoke, poor air quality

Preventive measures can limit impacts on health

Hamburger helper: Beef fat may be coming to help fuel a fancy jet near you

Hamburger helper: Beef fat may be coming to help fuel a fancy jet near you

Tallow-based fuel is advertised to cut carbon output of jet flights by 25%

Spring winds kick up dust, exacerbate allergies across Southwest Colorado

Spring winds kick up dust, exacerbate allergies across Southwest Colorado

Juan Basin Public Health reports hazardous air quality through Tuesday morning

More hazy days forecast for Four Corners

More hazy days forecast for Four Corners

from wildfires expected to linger through Wednesday morning

Western wildfires blamed for hazy skies; cooler temperatures forecast

Western wildfires blamed for hazy skies; cooler temperatures forecast

possible Wednesday through Friday

14 wildfires in Arizona, New Mexico create hazy skies to Southwest Colorado

14 wildfires in Arizona, New Mexico create hazy skies to Southwest Colorado

Largest blaze is listed at 65,825 acres

Colorado governor, Democrats reach deal on emissions proposal

Colorado governor, Democrats reach deal on emissions proposal

Environmental groups cheer changes, while business and energy sectors cry foul

Will a new methane rule have any impact on Four Corners ‘hot spot’?

Will a new methane rule have any impact on Four Corners ‘hot spot’?

U.S. Senate votes to reinstate EPA safeguards on potent emissions

San Juan County, N.M., receives failing score for air quality

San Juan County, N.M., receives failing score for air quality

had higher-than-average number of ozone days