To the editor: I can attest that Patt Morrison’s column on the history of smog in Southern California was right on, with a few exceptions. I was in the public information department at the Los Angeles ...

The Los Angeles region has some of the most polluted air in the United States, failing to meet standards set by the Environmental Protection Agency for the last decade. Now, Caltech researchers have ...

Temperatures are on the rise and the inversion layer's returning to Southern California. All that exhaust from all those cars is staying with us. Does Los Angeles' experience with smog contains ...

A handsome man with the physique of the college football player he had once been walks into an airtight, 8-foot-square Plexiglas booth heated to 90 degrees. The door closes behind him. When he ...

As a child growing up in Southern California, Ann Carlson remembers mountains obscured by haze and yellowish brown air that stung her eyes and made her lungs ache. It was just “the environment,” her ...

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 ...

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 ...