SALT LAKE CITY -- Utah's most populous cities have flunked a national air quality exam. Even so, they're faring better today than a decade ago.
That's according to the American Lung Association, which released its report on 2012 air quality this week.
Nearly one in three Utah residents stand to have worse health due to high levels of pollution, the report finds. That's the proportion of Utah residents who are younger than 18, older than 65 or have asthma or heart disease.
Two spots in Utah are among the nation's most polluted, the report shows. The corridor from Salt Lake County to Weber County ranks the sixth worst in the nation for come-and-go pollution. Cache Valley ranks 10th.
Nationally, the report says, things are looking up. Most American communities are reducing pollution.