Report: Harmful PFAS Chemicals Are Pervasive In Building Materials Berkeley, CA — From the floor to the roof, the average building may be rife with persistent and potentially toxic “forever chemicals” called per- and polyfluoroalkyl substances (PFAS). A report released today by the Green Science Policy Institute is the first to document that PFAS, including large fluoropolymers, are used in a wide variety of building materials. “It’s worrisome that PFAS may be literally wall-to-wall in our homes and offices,” said Tom Bruton, Senior Scientists at the Green Science Policy Institute. “But the good news is that safer alternatives already exist. This is a problem that architects, designers, and manufacturers can solve.”