The Wisconsin Department of Natural Resources (DNR) and the Department of Health Services (DHS) announced yesterday a new PFAS-based consumption advisory for the Bay of Green Bay and its tributaries following results of fish sampling conducted in 2020. Elevated levels of PFOS (perfluorooctane sulfonate), a type of PFAS (per- and polyfluoroalkyl substances), were detected in rock bass sampled from the Peshtigo River. As a result, the DNR and DHS recommend consuming only one meal per week for rock bass from the Bay of Green Bay and its associated tributaries up to the first dam. This includes portions of the Peshtigo, Oconto, and Menominee rivers. Health risks may increase when fish with high levels of PFAS are consumed. These can include increased cholesterol levels, decreased immune response, and decreased fertility in women, among other health effects. Additional fish consumption advice and information on the effects of PFAS can be found on the DNR’s website

View map below provided by the Wisconsin Department of Natural Resources