W.H.O. declares air pollution a carcinogen, Breathe Utah reacts

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Utah's air quality is among the worst in the nation, especially during the winter. The World Health Organization declared Thursday that air pollution is a carcinogen, which means it's an agent likely to cause cancer.

Erin Mendenhall of Breathe Utah came to the FOX 13 News studios Thursday to discuss air quality and its link to cancer and other health risks. See the video above for her interview.