SALT LAKE CITY -- Air conditions have prompted the Utah Department of Environmental Quality to declare a mandatory action day Friday for most of the counties along the Wasatch Front.
Residents are being asked not to use coal or wood burning stoves throughout the day.
DEQ Environmental Planning Consultant Bethany Hyatt said the inversion is likely to get much worse, and the time for people to make the biggest impact is now.
"We do anticipate a cold front coming through this weekend, which we hope will break up the inversion, weaken it a little bit," she said. "But looking into next week the inversion's here to stay with us."
Hyatt said the DEQ is encouraging residents to use mass transit, and to combine trips as much as possible to reduce air pollution emissions.
For current air quality conditions, click here.