A wool sweater exposed to thirdhand smoke is suspended within a custom-built Teflon film chamber for controlled ozone oxidation experiments. News organizations may use or redistribute this image, with ...

As U.S. wildfire seasons escalate in length and intensity, firefighters and residents in western states face mounting threats to their long-term health due to prolonged exposure to smoke. Urban air ...

Experts lay bare the health effects of breathing in wildfire smoke and the steps that can be taken to reduce one's risk. When you purchase through links on our site, we may earn an affiliate ...