(Francisco Kjolseth | The Salt Lake Tribune) Refinery row in North Salt Lake is obscured by poor air quality as inversion conditions continue on Monday, Jan. 14, 2019, obscuring the ground below as pilot Jeff Greenland takes every opportunity to fly above the poor conditions. Over the radio with Salt Lake Approach before landing he can be heard saying "thanks for keeping us all safe during the shutdown," as the longest government shutdown in U.S. history drags on.