Add Yahoo as a preferred source to see more of our stories on Google. Los Angeles has struggled with air pollution problems since before smog became a term. In 1943, smog covered the city so thickly ...

The Los Angeles-Long Beach ranked as the nation's smoggiest region in a report released on Wednesday by the American Lung Association, which also faulted the region for short-term and year-round ...

The Port of Los Angeles must significantly improve its management of stormwater and groundwater to ensure that toxic pollutants stay out of the harbor, according to a tentative settlement on Wednesday ...

5 Freeway north of LA is the focus of an updated air quality alert reported at 5:03 p.m. on Wednesday by the National Weather Service. The alert is in effect until Thursday July 10, at 8:15 p.m. “The ...

The quarterly progress update on the ongoing efforts to reach zero-emissions operations at the Ports of Los Angeles and Long Beach will be presented at 9 a.m. Tuesday, Dec. 9, at Banning’s Landing ...

Los Angeles has struggled with air pollution problems since before smog became a term. In 1943, smog covered the city so thickly that residents thought they were under a chemical attack. The creation ...