Studies have shown that PFAS can accumulate in plants grown in PFAS-contaminated soil or irrigated with PFAS-contaminated water. However, accumulation depends on multiple factors including the type of plant, concentration of PFAS in soil and water, and type of PFAS. An individual’s PFAS exposure from eating plants grown in soil or irrigated with water with PFAS depends on how much and how often they eat the contaminated plants. The Minnesota Department of Health (MDH) conducted a study of PFAS levels in homegrown produce, garden soil, and outdoor tap water from the eastern Twin Cities area in 2010. Please click here for more information.
Scientists are still learning how people may be exposed to PFAS by eating animals raised with contaminated food or water. Studies have shown that PFAS can build up in animal products. More research is needed to fully understand the risk of exposures and public health impacts from consumption of PFAS-contaminated food sources. The U.S. Food and Drug Administration (FDA) is focused on generating, applying and evaluating the science that is needed to estimate PFAS exposure from food. Please see the FDA website (https://www.fda.gov/food/chemicals/and-polyfluoroalkyl-substances-pfas) for more information about FDA efforts to estimate PFAS exposure from foods.