WASHINGTON, Oct. 11 -- The Environmental Protection Agency announced that it expects to award up to five grants for per- and polyfluoroalkyl substances research. The agency description of the grant states: "Per- and Polyfluoroalkyl substances (PFAS) are a group of manufactured chemicals that have been widely used in industry and consumer products since the 1940s. PFAS are resistant to environmental and metabolic degradation and can build up in the environment and the human body over time. The s more ST