Article Photos: Sickening fog settles over Salt Lake City area 5/8

Dr. Gary Kunkel arrives at the Utah State Capitol wearing a breathing mask before a news conference Wednesday, Jan. 23, 2013, in Salt Lake City. A group of doctors is declaring a health emergency over northern Utah's lingering pollution problem. Utah Physicians for a Healthy Environment delivered a petition Wednesday demanding immediate action by elected officials.   (AP Photo/Rick Bowmer)