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.

Six months after devastating wildfires swept through Los Angeles communities, comprehensive testing shows Santa Monica Bay ...

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 ...

Summers in U.S. cities are projected to become hotter by 2060 and 2100, with some reaching heat levels comparable to the ...

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

Gas-powered cars and diesel trucks remain the state’s largest sources of smog and soot despite decades of cutting emissions.

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 ...