In its yearly State of the Air report out today, the American Lung Association gave four Southland counties failing grades for high pollution. KPCC’s Adolfo Guzman-Lopez has more.

LOS ANGELES (CNS) -- The Los Angeles-Long Beach area ranked as the nation's smoggiest region in a report released Wednesday by the American Lung Association, which also faulted the region for ...

The Los Angeles-Long Beach region has been ranked the nation's worst ozone-polluted area in 23 of the 24 years that the Lung Association has produced its State of the Air report, although the ...

Pittsburgh's air quality is some of the worst in the country, report says 02:27. The American Lung Association has released its latest "State of the Air" report and the Pittsburgh region has ...