Researchers contributing to the ASCENT network of air quality sensors observed spikes in lead and chlorine downwind from the ...

An air quality alert was issued on Thursday at 3:31 p.m. in effect until Friday at 7:15 a.m. The alert is for Burke Mountains, Greater Burke, McDowell Mountains and Eastern McDowell as well as Yancey ...

The EPA set up a waste collection site in Lario Park in Azusa, saying it was under orders to act quickly from President Trump ...

During the recent fires, many L.A. residents were inundated with information (and misinformation) about air quality. Here's the latest on a few spots where you can hike safely post-fires and not fret ...

Specialized air quality instruments captured a spike in lead, chlorine, and bromine pollution during the L.A. wildfires. As fires burned tens of thousands of acres across Los Angeles County, officials ...

Trump variously pointed the finger at the helicopter’s pilot, air traffic control, his predecessor, Joe Biden, and other ...

The phrase “urban firestorm” has terrified me since I first heard it, from the climate scientist Daniel Swain, who was ...

The lawsuit, filed in Orange County on Jan. 24, claims that the school adjusted his ...

Partly cloudy. Slight chance of a shower, becoming less likely later this evening. The chance of a thunderstorm early this evening, possibly severe. Light winds becoming easterly 15 to 25 km/h in the ...