Chronic exposure to pollution from wildfires has been linked to tens of thousands of deaths annually in the United States, ...

Firefighters battled flames at a home on East Pittsburgh Street in Salem Township, Pennsylvania.

Chronic exposure to fine particulate matter is the main concern ...

'Wildfire smoke PM2.5 has emerged as significant environmental hazard in the U.S.,' an expert said.

As brush fires continue burning across the region, health officials say the biggest danger may not be the flames themselves, but the smoke drifting into neighborhoods and lungs.

Researchers at Northwestern University released a study last week that found far more wood smoke from rural areas gets blown into cities during the winter than previously believed, where it poses ...