Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a large group of man-made chemicals that have been used in industry and consumer products worldwide since the 1950s. • PFAS do not occur naturally, but are widespread in the environment. • PFAS are found in people, wildlife and fish all over the world. • Some PFAS can stay in people’s bodies a long time. • Some PFAS do not break down easily in the environment. CS278160-E pfas_fact_sheet.pdf

Stephen B. Thacker CDC Library collection