TBT contamination identified in Antarctic marine sediments |
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Authors: | Negri A P Hales L T Battershill C Wolff C Webster N S |
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Institution: | Australian Institute of Marine Science, Townsville, Qld 4810, Australia. a.negri@aims.gov.au |
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Abstract: | We report for the first time butyltin contamination of near-shore sediments at six sites in the Ross Sea, Antarctica. A very high concentration of 2290 microg Sn kg(-1) sediment was recorded in one sample. The most likely source is abrasion of antifouling paint from the hulls of ice-breakers, but this pattern of contamination is also possible following ship groundings. Antifoulant biocides, such as TBT, have not been considered or detected in Antarctica previously and represent a new challenge to environmental managers and custodians. |
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Keywords: | Antarctica TBT Tributyltin Antifouling Ice Breaker |
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