Ozone And Rising Heat: How It's Getting WorseAs the Front Range sets new heat records, a new study out from National Jewish Health and the Union of Concerned Scientists shows warming in recent decades has sped up the process of ground-level ozone creation.
Colorado Doctor: Parents Should Check Air Quality Like They Check The WeatherPoor air quality has been an issue in Colorado recently, with the state marking dozens of air quality alerts this summer. As children head back to school and possibly more time outside, it could be a concern.
Air Quality Program Expanding to More Denver Schools, Adding Phone AppWith a return to in-person learning for the fall already underway or just days away, a new group of Denver schools will be taking part in a unique air quality monitoring program.
Commerce City, Northeast Denver Residents Can Track Air Quality Issues In Real TimePeople living in Commerce City and Northeast Denver can keep track of air quality in real-time. Suncor's air monitoring dashboard is acessible online.
The Best Methods To Filter Indoor Air, According To A Pollution Expert At CU BoulderAn expert on air cleaning from the University of Colorado Boulder showed CBS4 how indoor air filtering can be done effectively and affordably. 
Delays Possible At DIA As Pilots Rely On Instruments To Land In Thick SmokeThe visibility could be as low as a mile at times around the state.
Hazy Skies Over Downtown Denver Could Become A Regular Thing During The SummerThe air quality around the Northern Front Range is getting worse, and government regulators may impose new sanctions on Colorado even if some of the problem is drifting in from out-of-state.
Out-Of-State Wildfire Smoke Prompts Air Quality Alert For Eastern ColoradoThe smoke is from large fires that are burning in western states such as Oregon and California.
Mount Evans Visitors Seek An Escape From The Heavy Haze Over DenverThe ozone alert for the front range was extended until at least 4 p.m. on Tuesday.
Firefighters Gain Some Containment On Morgan Creek FireThe Morgan Creek Fire burning in Routt County is now about 7% contained. It started on July 9 and had been burning out of control.
Thick Western Wildfire Smoke Returns To Northern Colorado, Could Last Into MondayThe smoke was thick enough to reduce the visibility to the point where Denver's skyline was barely visible from our camera in the Denver Tech Center.