Salt Lake, Davis, Tooele and Weber counties are all under a yellow air alert on Tuesday.
The air poor air quality is a concern for many people who have respiratory issues as well as health individuals.
Dr. Troy Madsen, of the University of Utah Hospital, said prevention is key for anyone who may have difficult breathing in the compromised conditions.
"If you have medications you are prescribed to prevent any kind of respiratory issues, be sure and take those," said Madsen. "Avoid going outside, try to avoid exercising outside in this weather, and if things are getting bad, if you are getting tight and using that inhaler quite often, be sure to come to the ER."
Smoke from wildfire in the area contributed to the poor conditions.
Link: Utah air quality data