On September 6, 2022, the U.S EPA’s long-awaited proposed rule to list perfluorooctanoic acid (PFOA) and perluoroocanesulfonic acid (PFOS) as CERCLA hazardous substances was published in the Federal Register (Proposed Rule)....more
An increasing degree of attention is being paid to instances of vapor intrusion, the process by which volatile chemicals migrate, in vapor form, from soil or groundwater into indoor air spaces of buildings. Even in the era of...more