but also on other PFAS.These include perfluorocarboxylates (PFCAs) and perfluorosulfonates (PFSAs) with different chain lengths (typically betweenC4 and C14), fluorotelomer carboxylic acids (FTCAs) and non-ionic(volatile) compounds such as fluorotelomer alcohols (FTOHs), perfluorosulfonamide (PFOSA) and N-substituted sulfonamides