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A new analysis of air pollution across the country reveals a wide range throughout the Mountain West.
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The Mountain West is known for big blue skies. But several cities here are among the nation’s worst for short-term air pollution levels, according to a new American Lung Association study. Wildfire smoke is an increasing factor, but so is smog from growing cities across the region.
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The EPA is announcing updates to smog regulations October 1st, and manufacturers are making one last push against the new rules with an ad campaign…