So they went to the shorter chain carbons, and you study them, and they do just about the same thing, why would we think that you can make a very minor change in a molecule you are manufacturing and the body wouldn't react in the same way ? Studies also show the newer PFAS chemicals may migrate into food more readily than older forms.

Linda Birnbaum

Linda Silber Birnbaum is an American toxicologist, microbiologist and the current director of the National Institute for Environmental Health Sciences, as well as the National Toxicology Program, positions to which she was appointed on January 18, 2009. She also serves as an adjunct professor at the University of North Carolina at Chapel Hill School of Public Health and as a member of the editorial board of Environment International.

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