In Southern California, large warehouses must take steps to reduce the pollution caused by truck visits, either by switching ...

Los Angeles and much of Southern California were met with a regional air quality alert on Saturday, following July 4th ...

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

An air quality alert was reported by the NWS San Diego CA on Thursday at 2:47 p.m. in effect until Saturday at midnight. The ...

California regulators haven't updated landfill pollution standards since 2010, and appear to be only doing the minimum in the latest effort to revisit them, argues an L.A. County activist impacted by ...

Recent wildfires in the Northstate, particularly the Green Fire burning in the Montgomery Creek mountainous area of Shasta ...

The Madre Fire, now the largest wildfire in California this year, expanded to 79,630 acres by Saturday, July 5, prompting ...

On Wednesday at 2:12 p.m. an air quality alert was reported by the NWS San Diego CA in effect until Sunday at midnight. The ...

After the fireworks fade, the smoke lingers. Central California's air quality has taken a hit following 4th of July ...

California’s largest wildfire of the year grew to an estimated 70,801 acres Friday, producing smoke that has affected ...

Fireworks are happening across the city again this year, which poses two issues–highly concentrated pollution, and uniquely ...

A fleet of air quality monitoring vehicles took to the streets of California yesterday, marking the start of a year long ...