Learn about the Human Health Toxicity Assessment for PFBS
In April 2021, EPA announced the release of the final Human Health Toxicity Values for Perfluorobutane Sulfonic Acid (CASRN 375-73-5) and Related Compound Potassium Perfluorobutane Sulfonate (CASRN 29420-49-3). Perfluorobutane sulfonic acid (PFBS) is a member of a larger group of per- and polyfluoroalkyl substances (PFAS). The toxicity assessment is a written summary of the potential health effects associated with PFBS and identifies the dose levels at which those health effects may occur in order to calculate toxicity values.
- Fact Sheet: Toxicity Assessment for PFBS (4 pp, 104 K, About PDF)
- Technical Fact Sheet: Toxicity Assessment for PFBS (7 pp, 221 K, About PDF)
- Press Release announced the final Human Health Toxicity Assessment for PFBS (Apr 8, 2021)