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Perfluorinated compounds in the Antarctic region: Ocean circulation provides prolonged protection from distant sources

Citation

Bengtson Nash, SR and Rintoul, SR and Kawaguchi, S and Staniland, I and Van den Hoff, J and Tierney, M and Bossi, R, Perfluorinated compounds in the Antarctic region: Ocean circulation provides prolonged protection from distant sources, Environmental Pollution , 158, (9) pp. 2985-2991. ISSN 0269-7491 (2010) [Refereed Article]

DOI: doi:10.1016/j.envpol.2010.05.024

Abstract

In order to investigate the extent to which Perfluorinated Contaminants (PFCs) have permeated the Southern Ocean food web to date, a range of Antarctic, sub-Antarctic and Antarctic-migratory biota were analysed for key ionic PFCs. Based upon the geographical distribution pattern and ecology of biota with detectable vs. non-detectable PFC burdens, an evaluation of the potential contributory roles of alternative system input pathways is made. Our analytical findings, together with previous reports, reveal only the occasional occurrence of PFCs in migratory biota and vertebrate predators with foraging ranges extending into or north of the Antarctic Circumpolar Current (ACC). Geographical contamination patterns observed correspond most strongly with those expected from delivery via hydrospheric transport as governed by the unique oceanographic features of the Southern Ocean. We suggest that hydrospheric transport will form a slow, but primary, input pathway of PFCs to the Antarctic region.

Item Details

Item Type:Refereed Article
Keywords:Antarctic circumpolar current, Antarctica, Long range environmental transport, Perfluorinated compounds
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Physical Oceanography
Objective Division:Environment
Objective Group:Other Environment
Objective Field:Antarctic and Sub-Antarctic Oceanography
Author:Rintoul, SR (Dr Steve Rintoul)
Author:Kawaguchi, S (Dr So Kawaguchi)
ID Code:73260
Year Published:2010
Web of Science® Times Cited:20
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2011-09-22
Last Modified:2011-09-23
Downloads:0

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