El Paso, Texas, and Los Angeles, California, had some of the worst air pollution in the U.S. last year, according to a new ...

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 ...

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 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 ...

It’s Daylight Saving, that time of the year when we get more of that gorgeous L.A. light. To scientists, it’s a bit more complicated.

A motorcyclist in Los Angeles prepares to turn while driving along a street engulfed in a thick haze combined by fog and smog in 1958.Bettmann / Getty For much of its history, the city of stars could ...

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 ...