Salt Lake City, UT has this same problem. We deal with winter 'inversions', where if it doesn't snow, we get really bad air. http://www.ci.slc.ut.us/winter-inv

Salt Lake City, UT has this same problem. We deal with winter 'inversions', where if it doesn't snow, we get really bad air. http://www.ci.slc.ut.us/winter-inversions-what-are-they-and-what-we-can-all-do-help http://www.ci.slc.ut.us/winter-inversions-what-are-they-and-...