Mealey's (April 6, 2023, 7:41 AM EDT) -- WASHINGTON, D.C. — The advocacy group Physicians for Social Responsibility (PSR) has issued a report finding that since at least 2013, hydraulic fracturing operators in Texas used more than 43,000 pounds of per- and polyfluoroalkyl substances (PFAS), while gaps in state disclosure rules prevent the public from knowing how widely PFAS have been used....