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Steve Griffin | The Salt Lake Tribune Michael Yang, scientist for air monitoring standards of the Division of Air Quality for Francisco Kjolseth | The Salt Lake Tribune The air quality continues to deteriorate as inversion conditions trap cold air in the S Steve Griffin | The Salt Lake Tribune Michael Yang, scientist for air monitoring standards of the Division of Air Quality for Steve Griffin | The Salt Lake Tribune Michael Yang, scientist for air monitoring standards of the Division of Air Quality for Steve Griffin | The Salt Lake Tribune Michael Yang, scientist for air monitoring standards of the Division of Air Quality for Steve Griffin | The Salt Lake Tribune Michael Yang, scientist for air monitoring standards of the Division of Air Quality for