What are forever chemicals, and do they last forever?

Credit: American Chemical Society.

Forever chemicals are known for being water-, heat- and oil-resistant, which makes them useful in everything from rain jackets to firefighting foams.

But the chemistry that makes them so useful also makes them stick around in the environment and in us –– and that could be a bad thing.

Reactions is a video series produced by the American Chemical Society and PBS Digital Studios.

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