An air quality advisory has been issued for Friday in the Santa Clarita Valley and other areas of Los Angeles due to smoke ...

The U.S. has one of the world’s most advanced systems to monitor air pollutants. Can it keep up with a changing climate?

As San Luis County's Madre Fire rips through California, air quality warnings are now being issued for nearby areas, ...

With many planning to spend their Independence Day at the beach, health officials are warning the public to avoid some Los ...

Freeway north of LA is under an air quality alert which was reported by the National Weather Service on Thursday at 2:43 p.m.

Air quality is uniquely terrible after all those official and illegal fireworks are detonated to celebrate Independence Day.

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