PFAS Footprint Calculator

Per – and polyfluoroalkyl substances (PFAS) are a group of over 15,000 synthetic chemicals that have produced since the late 1930's. that have been used in various household and industrial products. The PFAS molecules have a fluorinated carbon chain with various functional groups that give them unique properties well-suited for use in non-stick, stain resistant, and waterproof materials. Additionally, they have been granted the nickname name 'forever' and 'legacy' chemicals due to their slow degradability and persistence in the environment. Despite several of the PFAS compounds being discounted and removed from products in the early 2000's, they are still found in the environment, as well as in the blood of wildlife and humans. Exposure to PFAS may vary depending on occupation and use of items known to contain PFAS. Multiple studies have emphasized the dangers of PFAS exposure, as they bioaccumulate in the environment, animals, and humans. Current research shows increased risk of cancers, infertility, reduced fetal growth, and decreased immune response, prompting a need for further public education and awareness. Because it can be difficult to know how best to reduce exposure to PFAS, we are developing a PFAS Footprint Calculator took that will help families and individuals to understand their exposure to PFAS-containing household and consumer products. Users will enter the number and type of products, such as textiles, cosmetics, and food packing into the footprint tool, and based on a literature review on the amount of PFAS in each product type, the tool will estimate a user’s PFAS footprint. Results of the literature review show that PFAS concentrations vary amongst different companies, states, and products; with production and manufacturing contributing to the variation from item to item. The results of the tool will help the user to identify ways to limit their exposure to PFAS, thereby reducing exposure risk to themselves and their families. Preliminary data collection indicates that textiles and cookware could be major contributors to PFAS exposure. The tool will also serve to educate and raise awareness regarding PFAS-containing products, thereby serving to help improve public health.