They are all around us — and may be inside virtually everyone you know. But not everyone has heard of them, and not everyone is prepared for their regulation.

PFAS — or per- and polyfluoroalkyl substances — have been detected just about everywhere, from airports to paper mills. Scientists have reported finding PFAS in nearly 99% of all participants in a representative study based on the U.S. population.

Originally published in Law360 on May 2, 2019.