President Donald Trump’s administration is trying to keep California from having stricter-than-average vehicle emission ...

Long Beach residents near companies that use methyl bromide are angry that air quality officials didn’t notify them for years ...

A new report shows that some of the nation's most polluted cities are in Southern California, four of which call the Inland ...

As fires rage across the West Coast, destroying homes and forcing evacuations, the air we breathe has been severely impacted. In the following California air quality map, you can see how the air ...

The San Joaquin Valley Air Pollution Control District, California Air Resources Board and U.S. Environmental Protection Agency are the primary regulatory agencies with a legal duty to ensure sources ...

A California lawmaker introduced a bill Tuesday to expand the state’s power to reduce pollution amid concerns that the Trump ...

A Democratic state lawmaker introduced a bill late Friday that would delay California’s zero-emission school bus purchasing ...