“These substances stay in the environment for a long time because they do not break down easily. As a result, PFAS are widely detected in soil, water, air and food. People can be exposed to PFAS when they use products that contain the compounds, eat PFAS-contaminated food or drink PFAS-contaminated water. When ingested, some PFAS can build up in the body. Over time, they may accumulate to levels associated with negative health outcomes.”