Scientists Dig Into Hard Questions About The Fluorinated Pollutants Known As PFAS

Parts of the Cape Fear River near Fayetteville, N.C., are contaminated with a PFAS compound called GenX. The North Carolina Department of Health and Human Services is surveying residents in the area about their health.

PFAS are a family of chemicals accumulating in the soil, rivers, drinking water and the human body. How much exposure to these substances in clothes, firefighting foam and food wrap is too much?

(Image credit: Mark Wilson/Getty Images)

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