The EPA says new types of nonstick industrial chemicals might not be much safer than their predecessors – raising alarm in parts of New Hampshire.
For years, companies used fluorinated chemicals like PFOA and PFOS to make nonstick, waterproof or stain-resistant products.
Now, science suggests those chemicals can harm human health even at very low levels.
So industry has replaced them with similar compounds called GenX. They're all part of the PFAS family.