Supplement to: Rotander, Anna; Kärrman, Anna; van Bavel, Bert; Polder, Anuschka; Rigét, Frank F; Auðunsson, Guðjón Atli; Víkingsson, Gísli; Gabrielsen, Geir W; Bloch, Dorete; Dam, Maria (2012): Increasing levels of long-chain perfluorocarboxylic acids (PFCAs) in Arctic and North Atlantic marine mammals, 1984-2009. Chemosphere, 86(3), 278-285, https://doi.org/10.1016/j.chemosphere.2011.09.054