The Air Quality Index measured 156 near Forks, Washington, and received a rating of "unhealthy," meaning some members of the ...

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

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

Millions woke up to hazy skies and poor air quality Wednesday morning as crews continued to fight the Palisades Fire in ...

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

There are many pollutants of concern in wildfire smoke,” including ozone, carbon monoxide and other toxic gases, says ...

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

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

The smoke was expected to most heavily affect northwest coastal LA County, and in areas nearest the Palisades, Eaton and ...

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

Wildfire smoke can be harmful to health, especially for children, the elderly, those who are pregnant and people with respiratory or cardiovascular issues. Hazardous air quality can affect people ...

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.