Canada will add PFAS, which are linked to cancer and other health problems, to toxic substances list

Waterproof mascara, seen here being tested in Prof. Miriam Diamond's lab, was among the products most likely to contain PFAS.

The federal government is moving to add PFAS, a class of thousands of chemicals used in a wide range of products from food containers to clothing, to the official list of toxic substances, in light of growing scientific and public concern about the substances in Canada and around the world.