Feds say Utah has another serious air quality problem — ozone
As the Environmental Protection Agency weighs actions ordering Utah to deal with the pollutant, preliminary data suggest Salt Lake City violated new limits on ozone 20 times in 2017 alone.
Francisco Kjolseth | The Salt Lake Tribune
Ozone and haze blanketed the Salt Lake Valley on Tuesday, Aug. 1, 2017. According to preliminary state data, Salt Lake City violated federal limits on ozone pollution 20 times that summer.