Perfluorinated Chemicals (PFAS)

PFOS & PFOA

Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) are synthetic per- and polyfluoroalkyl substances (PFAS) used historically in stain repellents, firefighting foams, and industrial applications. They are persistent environmental pollutants with bioaccumulative properties and are not food ingredients but contaminants or materials of concern.