Polyfluoroalkyl substances, or PFAS, seem to be ubiquitous now in the environment and the news. In this episode I delve into why chemists found these compounds so fascinating and useful. Then I discuss some history of how the world finally learned how dangerous these compounds can be if used and disposed of improperly. Finally I talk of some possible methods chemists are currently researching on how to remove PFAS from the environment.

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