May 11, 2021

Volume XI, Number 131

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May 11, 2021

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May 10, 2021

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EPA Releases Updated PFBS Toxicity Assessment

The U.S. Environmental Protection Agency (EPA) announced on April 8, 2021, that it is releasing an updated toxicity assessment for perfluorobutane sulfonic acid (PFBS), which is a member of the group of per- and polyfluoroalkyl substances (PFAS).  EPA states that this PFBS assessment is part of its commitment to restore scientific integrity to all of the Agency’s actions and increase the amount of research and information available to the public on PFAS.  According to EPA’s announcement, “EPA, federal agencies, states, tribes, and local communities can use the PFBS toxicity assessment, along with specific exposure and other relevant information, to determine if and when it is necessary to take action to address potential health risks associated with human exposures to PFBS under appropriate regulations and statutes.”  EPA notes that the updated assessment “has gone through all appropriate reviews, includes input EPA received from external peer review, upholds the tenants of scientific integrity, was authored by expert career scientists in EPA’s Office of Research and Development, and has not been compromised by political staff -- these were all issues with a version of the assessment that was posted during the previous administration.  The release of today’s PFBS assessment upholds the integrity of EPA’s science, which EPA, states, tribes, and more rely on to make decisions that protect the health of their communities.”

According to EPA’s fact sheet on the toxicity assessment, PFBS is a replacement chemical for perfluorooctanesulfonic acid (PFOS), a PFAS that was voluntarily phased out by the primary U.S. manufacturer by 2002.  PFBS has been identified in the environment and consumer products, including surface water, wastewater, drinking water, dust, carpeting and carpet cleaners, and floor wax.  The fact sheet states that the PFBS toxicity assessment is comparable to assessments developed under EPA’s Integrated Risk Information System (IRIS) and Provisional Peer-Reviewed Toxicity Value (PPRTV) Programs in that it provides hazard identification, dose-response information, and toxicity values.  EPA will continue to work with state, tribal, and local partners to provide technical assistance as they consider the final PFBS toxicity values in relevant exposure scenarios.  The fact sheet notes that at this time, EPA does not plan to issue a regulation for PFBS.

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©2021 Bergeson & Campbell, P.C.National Law Review, Volume XI, Number 99
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About this Author

Lynn Bergeson, Campbell PC, Toxic Substances Control Act Attorney, federal insecticide lawyer, industrial biotechnology legal counsel, Food Drug Administration law
Managing Partner

Lynn L. Bergeson has earned an international reputation for her deep and expansive understanding of the Toxic Substances Control Act (TSCA), the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), European Union Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), and especially how these regulatory programs pertain to nanotechnology, industrial biotechnology, synthetic biology, and other emerging transformative technologies. Her knowledge of and involvement in the policy process allows her to develop client-focused strategies whether...

202-557-3801
Carla Hutto, Bergeson Campbell PC environmental law regulatory analyst,Toxic Substances Control Act law attorney
Regulatory Analyst

Since 1996, Carla Hutton has monitored, researched, and written about regulatory and legislative issues that may potentially affect Bergeson & Campbell, P.C. (B&C®) clients. She is responsible for creating a number of monthly and quarterly regulatory updates for B&C's clients, as well as other documents, such as chemical-specific global assessments of regulatory developments and trends. She authors memoranda for B&C clients on regulatory and legislative developments, providing information that is focused, timely and applicable to client...

202-557-3809
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