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Why 'BPA Free' May Not Mean a Plastic Product Is Safe

SCIENCE & INNOVATION

By Maya Wei-Haas

The study started as an accident. Geneticist Patricia Hunt of Washington State University and her team were investigating the reproductive effects of BPA in mice. Housed in BPA-free plastic cages, the test group got doses of BPA through a dropper; the control group didn't.

Everything seemed rosy—until it wasn't.

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