Nation's Air Improving, Even in L.A. April 25, 2012 -- People who live in the nation's most polluted cities are breathing cleaner air than they have in over a decade, according to new data released today by the American Lung Association (ALA).

The group's annual "State of the Air" report highlights successes in lowering pollution levels across the nation while mentioning the ALA's struggles to maintain federal laws aimed at protecting the air Americans breathe.

"We have seen continued progress in cleaning up air pollution across the nation, but more than 127 million people still live in places that have unhealthy air," says ALA National Policy Advisor Janice Nolen.

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