Per- and polyfluoroalkyl substances (PFAS) are a group of man-made chemicals that have been used in a wide range of industrial and consumer products due to their water- and grease-resistant properties. These substances include PFOA, PFOS, GenX, and many others. PFAS are often referred to as "forever chemicals" because they do not break down in the environment and can accumulate in human and animal tissue over time.
