Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the ...

AirNow is a collaborative effort of federal agencies that provides air quality data across the U.S. The site also has ...

Air quality across parts of California is deteriorating to hazardous levels as strong winds drive rapid wildfire spread and ...

Wildfire smoke increases tiny particles in the air known as particulate matter that can be harmful to people’s health.

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

Smoke from the blaze has significantly worsened air quality statewide, with some areas reporting hazardous levels exceeding 500 on the Air Quality Index (AQI).

With hazardous levels of smoke lingering over Los Angeles County as a result of the slew of wildfires currently burning throughout the region, county officials are urging the public to stay safe.

The fire has scorched more than 11,000 acres, destroyed more than 1,000 structures and forced tens of thousands to evacuate.

Smoke from the raging Southern California wildfires is filling city skylines, causing officials to warn residents of hazardous air quality.

Emergency room doctors report waves of patients with breathing problems as smoke increases fine particulates in the air. Health officials also are monitoring the potential mental health toll wildfires ...