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

DIAMOND BAR, Calif. - Right now Riverside County is under an Air Quality Alert which will remain in effect through Thursday this week. This is due to harmful levels of ozone pollution, which officials ...

A regional air quality alert was issued for much of Southern California as harmful levels of fine particle pollution spread ...

The warming trend that will hit Southern California on Tuesday is bringing with it some adverse air quality. The South Coast ...

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

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

Fourth of July fireworks could prompt hazardous air quality across parts of Southern California this weekend, authorities ...

An ozone advisory has been issued for parts of Riverside County through Thursday as a heat wave affects the region, officials said Monday. According to the South Coast Air Quality Management District, ...

California air quality regulators are failing to address landfill pollution, putting communities at risk of toxic exposure and health issues.

A controversial bill on how best to clean up the air at California ports gets a hearing today in Sacramento. Senate Bill 34 ...

With 7 of its ambitious rules for cars, trucks and trains repealed, California officials must find new ways to clean up the ...

So happy smogiversary, Los Angeles. We can breathe a lot easier than we used to, but don't let that fool you — we still have the worst air quality in America — a distinction the American Lung ...