1 Natural History Museum of Denmark, Natural History Museum of Denmark, Faculty of Science, Københavns Universitet2 Institut for Bioscience - Arctic Research Centre, Roskilde3 Health4 unknown5 Det Teknisk-Naturvidenskabelige Fakultet, Aalborg Universitet6 Institut for Økonomi og Ledelse7 Institut for Bioscience - Arktisk Miljø8 Afdeling for Arktisk Miljø9 Miljømedicin, SDU10 Institut for Bioscience - Havpattedyrforskning11 Natural History Museum of Denmark, Natural History Museum of Denmark, Faculty of Science, Københavns Universitet
This review critically evaluates the available mercury (Hg) data in Arctic marine biota and the Inuit population against toxicity threshold values. In particular marine top predators exhibit concentrations of mercury in their tissues and organs that are believed to exceed thresholds for biological effects. Species whose concentrations exceed threshold values include the polar bears (Ursus maritimus), beluga whale (Delphinapterus leucas), pilot whale (Globicephala melas), hooded seal (Cystophora cristata), a few seabird species, and landlocked Arctic char (Salvelinus alpinus). Toothed whales appear to be one of the most vulnerable groups, with high concentrations of mercury recorded in brain tissue with associated signs of neurochemical effects. Evidence of increasing concentrations in mercury in some biota in Arctic Canada and Greenland is therefore a concern with respect to ecosystem health.
Science of the Total Environment, 2013, Vol 443, p. 775-790
Fish; Birds; Mammals; Heavy metals; Exposure; Threshold levels