Illinois has become the latest state to issue formal Health Advisories for a number of Per- and Polyfluoroalkyl Substances (PFAS). The Health Advisories are for four compounds—Perfluorobutanesulfonic (PFBS) (140,000 parts per trillion “ppt”); Perfluorohexanesulfonic acid (PFHxS) (140 ppt); Perfluorooctanoic acid (PFOA) (2 ppt); and Perfluorohexanoic acid (PFHxA) (560,000 ppt)—and the Illinois Environmental Protection Agency (EPA)

On December 18, 2020, the U.S. Environmental Protection Agency (EPA) released its Interim Guidance on the Destruction and Disposal of Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) and Materials Containing Perfluoroalkyl and
Polyfluoroalkyl Substances (PFAS).  The Interim Guidance is not a rule or statement of policy, but presents currently available information on PFAS destruction and disposal, as