WASHINGTON (CN) - The Environmental Protection Agency is requiring premanufacture notice to the agency exemption for certain waterproofing chemicals because it believes the polymers may pose a significant health threat. The rule allows other polymers an exemption from the premanufacture notification requirements of the Toxic Substances Control Act.
For polymers containing as an integral part of their composition, certain perfluoroalkyl moieties consisting of a CF3 or longer chain length, importers and exporters must notify the EPA of their intent to import or export such polymers and must provide their name and address, the intended destination of the chemicals and chemical configuration of the chemicals.
Perfluoroalkyls provide oil and water repelling qualities and are used in the manufacture of waterproofing materials, stain resistant fabrics and reflective coating in electronic components.Based on current research, the agency has determined that when chemicals containing the perfluoroalkyls degrade, the polymer does not. It remains in the environment and may accumulate, either in fish or other animals which are eaten by humans, at levels that are carcinogenic.
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