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The overlooked role of the ocean in mercury cycling in the Arctic |
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| Authors: | Macdonald Robie W Wang Feiyue Stern Gary Outridge Peter |
| Affiliation: | a Department of Environment and Geography, University of Manitoba, Winnipeg, MB, Canada R3T 2N2 b Institute of Ocean Sciences, Department of Fisheries and Oceans, Sidney, BC, Canada V8L 4B2 c Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2 d Freshwater Institute, Department of Fisheries and Oceans, Winnipeg, MB, Canada R3T 2N6 e Geological Survey of Canada, 601 Booth Street, Ottawa, ON, Canada K1A 0E8 |
| Abstract: | The rapid and high bioaccumulation of mercury in marine mammals and its spatial and temporal variations have been a major puzzle in the Arctic. While extensive efforts have been focussed on the monitoring and chemistry of atmospheric mercury depletion events, a recent mass budget estimate of mercury in the Arctic suggests that we have overlooked the role of the ocean itself. Only through focussed studies on Hg dynamics in the Arctic Ocean under a changing climate are we going to understand what the risk of mercury is to those marine ecosystems and the people who rely on them. |
| Keywords: | Mercury Arctic Ocean Bioaccumulation Climate change |
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