The American Lung Association says the Salt Lake City-Provo-Orem metropolitan area is among the most polluted in the United States. A report on State of the Air 2018 says that out of more than 200 cities, Wasatch Front cities ranked #8 for 24-hour particle pollution and #18 for high ozone days. The American Lung Association website has information about health risks and how to protect yourself from dirty air. See also Ashley Miller’s “Breathe” column in this issue.
American Lung Association State of the Air 2018: lung.org/our-initiatives/healthy-air/sota/