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  • April 24, 2024
  • 3E

DEEP DIVE: U.S. EPA Adds Two PFAS to List of Hazardous Substances Under Superfund

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(Editor’s Note: 3E is expanding news coverage to provide customers with insights into topics that enable a safer, more sustainable world by protecting people, safeguarding products, and helping businesses grow. DEEP DIVE articles, produced by reporters, feature interviews with subject matter experts and influencers as well as exclusive analysis provided by 3E researchers and consultants).

On 19 April 2024, the U.S. Environmental Protection Agency announced it finalized a rule that designates two widely used per- and polyfluoroalkyl substances (PFAS) as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), also known as Superfund.

This final rule designates perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) as hazardous substances under Superfund, requiring polluters to pay for the cost of cleaning up contamination related to PFOA and PFOS. As noted by EPA in a press release, “exposure to per- and polyfluoroalkyl substances (PFAS) has been linked to cancers, impacts to the liver and heart, and immune and developmental damage to infants and children.”


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