The move comes as a relief to the state’s air quality managers, who have scrambled to find ways to reel in emissions or risk ...

The Trump administration has decided to roll back a prior decision that northern Utah is not in attainment for ozone ...

The EPA is proposing to improve northern Utah’s grade on ozone pollution in a recognition of emissions from other countries.

Add Yahoo as a preferred source to see more of our stories on Google. Downtown Salt Lake City is shrouded in a thick pollution haze on Thursday, Jan. 15, 2026. (Photo by Spenser Heaps for Utah News ...

The U.S. Supreme Court sided with Utah and Oklahoma on Wednesday in a case that started over disagreements with the Clean Air Act, and evolved into a debate over where certain lawsuits could be heard.

SALT LAKE CITY — A unanimous U.S. Supreme Court sided with the states of Oklahoma and Utah in a case of where legal challenges to air quality regulations are heard. The litigation centered around ...

So breathable air is negotiable, huh? How else can you explain a 5-4 vote by the Utah Air Quality Board to allow Rio Tinto's Kennecott ... Quality Is a Loose Term So breathable air is negotiable, huh?

SALT LAKE CITY — No, this isn't a round of "Would you rather?" but it is an exercise in identifying equivalencies. When it comes to air pollution, running a two-stroke gas-powered engine (most common ...

Fires currently burning in western Colorado, Utah and beyond have caused the air quality in Colorado's Front Range to diminish. Health experts in Larimer County confirmed their data shows air quality ...