Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — ...

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

Some of the most destructive wildfires in California's history have killed at least 25 people in Los Angeles County, caused ...

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.

Windblown ash from wildfires could pose health risks across Southern California this week. Here's what you need to know.

An air quality alert was issued on Monday at 12:41 p.m. in effect until Tuesday at 12:15 p.m. The alert is for San Bernardino ...

Air quality is a big concern for everyone in Southern California, even for those who don't live near fire zones. Here are answers to some of your top questions.

As multiple fires burn across the Los Angeles area, several districts that hoped to be open by now have stayed shuttered.

There are many pollutants of concern in wildfire smoke,” including ozone, carbon monoxide and other toxic gases, says ...

Major air pollutants have declined in recent decades, but USA TODAY’s analysis shows wildfire smoke is taking their place.