A hidden air pollutant is discovered by Caltech scientists that may change the way smog is studied in Southern California ...

An annual report from the American Lung Assn. showed that Los Angeles has improved its air quality but still deserves its reputation for unhealthy air.

Los Angeles has long struggled with air pollution, and despite progress over the decades, smog is still a major issue in the ...

California has used federal waivers to help clean up its air quality for decades. The U.S. Senate will likely revoke that ...

The Los Angeles region has some of the most polluted air in the United States, failing to meet standards set by the ...

The iconic skyline of downtown Los Angeles ... The “State of the Air” report from the association has been handing out grades to American cities based on their air quality for the past 26 ...

A South Coast Air Quality Management District expert offered tips on how to stay safe during summer smog season as hot weather has an adverse affect on air quality.

There are 25 million more people living with bad air than last year's report showed, according to air quality data from the ...

How Southern California Wildfires Impact Air Quality, Smoke Damage, and Insurance Coverage - The Southern California ...

The Los Angeles police have released body camera video showing the moment officers shot the wife of the band Weezer's bass player, Jillian Shriner. Authorities are investigating a jewelry heist in ...