smog

A new report from the American Lung Association shows cities across the Western U.S. have some of the most polluted air in the country. But that’s not the case everywhere in the Mountain West.

A new analysis of air pollution across the country reveals a wide range throughout the Mountain West.

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.

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…