The role of sea ice in the fate of contaminants in the Arctic Ocean: Plutonium atom ratios in the Fram Strait.

Masqué, P., Cochran, J. K., Hebbeln, D., Dethleff, Dirk and Winkler, A. (2003) The role of sea ice in the fate of contaminants in the Arctic Ocean: Plutonium atom ratios in the Fram Strait. Environmental Science & Technology, 37 (21). pp. 4848-4854. DOI 10.1021/es034176n.

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Abstract

Atom ratios of 240Pu to 239Pu in bottom sediments from the Fram Strait are used to provide evidence for the long distance dispersion of Pu in the Arctic Ocean. In particular, low (<0.18) 240Pu/239Pu ratios indicate that plutonium from sources in the Kara Sea and Novaya Zemlya is transported across the basin toward the North Atlantic. The results have implications for the ability of sea ice to incorporate, intercept, and transport contaminants in the Arctic Ocean. They demonstrate that the fates of sea ice and associated contaminants in the Arctic Ocean are closely coupled, with the release of the particulate load and associated chemical species occurring in principal sea ice ablation areas such as the Fram Strait.

Document Type: Article
Keywords: sea ice, contaminants, Arctic Ocean, Plutonium atom ratios, Fram Strait
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1021/es034176n
ISSN: 0013-936X
Date Deposited: 18 Feb 2008 17:26
Last Modified: 07 Mar 2017 09:32
URI: http://oceanrep.geomar.de/id/eprint/1378

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