hundreds of pollution sensors, and forecast models to provide real-time air quality index (AQI) readings for more than 1,000 locations. Los Angeles’ air quality is closely tied to weather patterns.

The smoke may be temporary, but toxic air pollution is an ever-present danger with effects that linger for generations.

Air pollution is a well-known risk factor for respiratory diseases such as asthma and chronic obstructive pulmonary disease (COPD).

Toxic chemicals from L.A.'s fires are going underreported and pose serious long-term risks, a group of lawmakers says. They ...

Data reviewed by Caltech scientists found spikes of lead, chlorine and bromine in the air after the Eaton fire started.

A Day 1 executive order directed federal agencies to freeze funding under former president Joe Biden’s signature climate law, ...

Here are the landfills that could take toxic waste from the L.A. wildfires in the coming weeks — many have not accepted ...

Los Angeles residents will have to cope with the effects of smoke-related unhealthy air, the Los Angeles County Health ...

One of the latest executive orders signed by Joe Biden prohibits these infrastructures from being built in areas with a high ...

As crews work to clean up from the Los Angeles wildfires, city officials and residents are opposing the designation of a ...

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 ...