Dusty West raises air quality question
New, complicated chapter unfolding as problem grows
The question of how clean the air is in the American West has never been an easy one to answer. And now scientists say it is getting harder, with implications that ripple out in surprising ways, from the kitchen faucets of Los Angeles to public health clinics in canyon-land Utah to the economics of tourism. It is at least partly about dust, something that has been entwined with Western life for a long time, and now appears to be getting worse.