Francisco Kjolseth | The Salt Lake Tribune Pool air quality blankets the valley, obscuring visibility and increasing health concerns. A sizable source of emissions, comes from "warming up" your car, a widespread practice in Utah.Last month Salt Lake City police found 600 unattended, idling vehicles in the space of three hours, even though itÕs completely unnecessary. For modern cars, all idling does is release a lot of emissions.
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