A wind-blown dust advisory is in place for parts of Southern California as air quality is predicted to worsen on Friday.

Smoke advisories remain in effect in Southern California due to three major wildfires that started earlier this month.

Black and Latino communities in California breathe the dirtiest air despite state policies that restrict vehicle emissions, ...

Mesquite, Nevada and Scenic, Arizona, which sit across the state line from each other about 80 miles northeast of Las Vegas, ...

SACRAMENTO — California is split over a proposal to become the first U.S. state to regulate airline emissions. The state has ...

As hot, dry weather continues, Southern California is facing unhealthy air quality and heightened fire danger.

A new report has revealed that California greenhouse gas emissions dropped more than 2% in 2022, coinciding with a rise in ...

U.S. House representatives from Southern California on Monday called for a federal state of emergency declaration, with hopes ...

A group of researchers measured exposure to vehicle air pollution in California and examined which populations were most ...

Although fine particle pollution has decreased statewide, researchers say historically disadvantaged communities still face ...

Multiple wildfires burning north of San Diego County have prompted the National Weather Service to issue an air quality alert ...

California enacted the nation's first vehicle emissions standards in 1966, four years before the federal Clean Air Act, and has continued to lead the U.S. in air quality policy.