As Los Angeles grew exponentially in the mid-1900s and the car became the apple of capitalism's eye, the smog arose and rapidly overtook the beachside paradise.

A series of live maps from Windy.com highlighted which parts of the U.S. were experiencing elevated levels of air pollution ...

Los Angeles braces for a hot day with an Air Quality Alert due to high ozone levels, affecting sensitive groups and advising precautions like staying indoors and limiting outdoor activities.

As some of the worst fires in Los Angeles history swept through the Pacific Palisades and Altadena neighborhoods in January ...

On Wednesday at 5:03 p.m. the NWS Los Angeles/Oxnard CA reported an updated air quality alert in effect until Thursday at ...

Los Angeles County is the focus of an updated air quality alert reported at 5:03 p.m. on Wednesday by the National Weather ...

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 ...

Los Angeles County is the focus of an updated air quality alert reported at 3:54 p.m. on Wednesday by the National Weather Service. The alert is in effect until 5 p.m.

Millions of people in California have been urged to avoid grilling on Wednesday amid concerns over high air pollution levels.

Johnny Jimenez gathered the crews he manages at Designscapes Colorado, a commercial landscaping company headquartered in ...

A new regulation effective June 1 bans governments and their contractors from using small gas-powered equipment during the ...

With 7 of its most ambitious rules for cars, trucks and trains repealed, California officials now must find new ways to clean ...