S1 Supporting information for Emission changes dwarf the influence of feeding habits on temporal trends of per- and polyfluoroalkyl substances in two Arctic top predators Heli Routti,†* Jon Aars,† Eva Fuglei,† Linda Hanssen,‡ Karen Lone,† Anuschka Polder,§ Åshild Ø. Pedersen,† Sabrina Tartu,† Jeffrey M. Welker, ∥ and Nigel G. Yoccoz,⊥ † Norwegian Polar Institute, Fram Centre, Tromsø, Norway ‡ Norwegian Institute for Air Research, Fram Centre, Tromsø, Norway § Norwegian University of Life Sciences, Campus Adamstua, Oslo, Norway ∥ University of Alaska Anchorage, Department of Biological Sciences, Anchorage, Alaska, United States ⊥ UiT-The Arctic University of Norway, Department of Arctic and Marine Biology, Tromsø, Norway Number of pages: 39 Number of tables: 9 Number of figures: 5