Canadian Environmental Sustainability Indicators : Perfluorooctane Sulfonate (PFOS) in fish and water

The first dataset comes from a study done by Furdui from the Ontario's Ministry of the Environment in collaboration with Fisheries and Oceans Canada and Environment and Climate Change Canada. [...] Perfluorooctane Sulfonate (PFOS) in Fish and Water Page 8 of 22 Part 2. Data Sources and Methods for the Perfluorooctane Sulfonate (PFOS) in Fish and Water Indicators Introduction The Perfluorooctane Sulfonate (PFOS) in Fish and Water indicators are part of the Canadian Environmental Sustainability Indicators (CESI) program, which provides data and information to track Canada's performance on key [...] Description and rationale of the Perfluorooctane Sulfonate (PFOS) in Fish and Water indicators Description The Perfluorooctane Sulfonate (PFOS) in Fish and Water indicators identify the drainage regions where concentrations of PFOS in fish and water have exceeded the Federal Environmental Quality Guidelines (the Guidelines). [...] Despite restrictions, PFOS remains in the Canadian environment because of a combination of long-range transport of both PFOS and compounds that break down to PFOS, its widespread use in the past, and its persistence in the environment. [...] Perfluorooctane sulfonate was selected as an indicator because of the existence of a representative monitoring dataset in fish and water and the Guidelines that help characterize the risk associated with its occurrence in the aquatic environment.