More than 100 scientists sent a letter to the World Health Organization today urging a complete overhaul or withdrawal of the organization's draft drinking water guidelines for the two most well-studied per- and polyfluoroalkyl substances (PFAS). The letter details how WHO's draft eschews calculating health-based standards, disregarding robust evidence for the harms of PFOS and PFOA. The letter also notes the lack of transparency about the draft's authorship.
