On Wednesday, the Environmental Protection Agency released newly-acquired data showing that over 143 million Americans are exposed to so-called “forever chemicals,” or PFAS. The source of this exposure is their drinking water — and as more data comes in, that number is expected to rise.

In the analysis, the EPA learned that 11 million more people are exposed to PFAS (per- and polyfluoroalkyl substances) in their drinking water than was previously reported. The EPA performs an annual set of studies known as the........

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