A map from AirNow suggests that the air quality around Los Angeles and Anaheim, California, is unhealthy as the Palisades fire continues to burn in Los Angeles County. The fire, determined to be the most destructive in Los Angeles city history,

As thousands of acres burn across Southern California, wildfire smoke is causing poor air quality in the region and beyond.

AirNow is a collaborative effort of federal agencies that provides air quality data across the U.S. The site also has up-to-date information about the wildfires, resources, data, and interactive maps to help users learn more about particular areas and how they might be affected. There's also a free AirNow mobile app.

Here's what to know about improving your air quality at home during a wildfire—these expert tips help you breathe easier when the air quality index is poor.

Already known for having some of the worst air quality in the U.S., people in Southern California are now also at risk of inhaling smoke.

Millions of Los Angeles County residents are facing extremely hazardous air quality as wildfires continue to burn. The air quality index in Los Angeles on Wednesday was 178, which is considered to be "unhealthy" for any individual who is active outdoors.

Fanned by fierce winds and fueled by vegetation bone-dry after a long period of little or no rain, the Los Angeles fires broke out on Tuesday and have relentlessly burned more tha

On Friday, the South Coast Air Quality Management District issued a smoke advisory for the fourth consecutive day, largely due to the elevated levels of unhealthy pollution billowing from the Eaton Fire in Altadena.