An air quality alert was issued on Sunday at 10:33 a.m. in effect until Tuesday at midnight. The alert is for Calabasas and ...

Researchers at the University of Southern California have released an interactive map to show Angelenos how pollution from ...

South Coast AQMD—the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside and San Bernardino counties—covers an area of 10,743 square miles that is ...

An air quality alert was issued on Friday at 12:07 p.m. in effect until Sunday at midnight. The alert is for Calabasas and ...

Even though the Palisades and Eaton fires are now mostly contained, the Santa Ana winds have led to new fires flaring up ...

LA County Sheriff says about 31,000 people were under mandatory evacuation orders while another 23,000 were under evacuation ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily more accurate.

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

The Air Quality Index, often referred to as AQI, is a federal measure of the amount of air pollution, reported on a six-color spectrum from green (good) to hazardous (maroon). There are five ...

Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — poses additional risks to public health.