Tag: Perfluoroalkyl and polyfluoroalkyl substances

Perfluoroalkyl and polyfluoroalkyl substances Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a large group of over 4,000 human-made chemicals known for their heat, water, and grease-resistant properties. Since the 1950s, PFAS have been widely used in consumer goods such as textiles, food packaging, firefighting foams, and cosmetics.  Due to their widespread use and persistence, PFAS chemicals…