Per- and polyfluoroalkyl substances (PFAS) are a group of man-made chemicals that include PFOA, PFOS, GenX, and others. PFAS have been used in many consumer products, including nonstick cookware, food packaging (like pizza boxes), and stain-resistant treatments. Some PFAS can build up in the human body and persist for long periods. The U.S. Environmental Protection Agency (EPA) notes there is evidence that PFAS exposure may cause adverse health effects.
Regulatory agencies are expected to issue additional guidelines for PFAS-contaminated soil remediation in the near future.