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Environ Pollut. 2006 Oct;143(3):456-67. Epub 2006 Feb 17.

Contamination in sediments, bivalves and sponges of McMurdo Sound, Antarctica.

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  • 1Australian Institute of Marine Science, PMB 3, Townsville, Qld, Australia. a.negri@aims.gov.au

Abstract

This study examined the concentrations of total hydrocarbons (THC), polychlorinated biphenyls (PCB), polyaromatic hydrocarbons (PAH), and trace metals (Cu, Zn, Cd, Pb, Hg and As) in marine sediments off Scott Base (NZ) and compared them with sediments near the highly polluted McMurdo Station (US) as well as less impacted sites including Turtle Rock and Cape Evans. The Antarctic mollusc, Laternula elliptica and three common sponge species were also analysed for trace metals. The mean THC concentration in sediments from Scott Base was 3 fold higher than the pristine site, Turtle Rock, but 10 fold lower than samples from McMurdo Station. McMurdo Station sediments also contained the highest concentrations of PAHs, PCBs and the trace metals, Cu, Zn, Pb, Cd and Hg. Copper was significantly higher in bivalves from McMurdo Station than other sites. Trace metal concentrations in sponges were generally consistent within sites but no spatial patterns were apparent.

PMID:
16487638
DOI:
10.1016/j.envpol.2005.12.005
[PubMed - indexed for MEDLINE]

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