Fate of DDTs, PCBs and chlordane compounds in the Antarctic marine ecosystem
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概要
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Bioaccumulation and environmental behavior of DDTs, PCBs and chlordane compounds in the antarctic marine ecosystem under the fast ice were studied. Many samples such as seawater, benthic invertebrates, fishes, Weddell seal etc., were collected at the Tottuki Point where pollution by human activities has been most unlikely and from Syowa Station where some pollution is likely because of the research activities. In seawater samples, the concentration of PCBs (sum of several tens of individual chlorinated biphenyls) was found to be higher than that of ΣDDT (p, p'-DDE+p, p'-DDT), but reverse in organisms. ΣChlordane (sum of several chlordane compounds and metabolites) concentrations showed the middle level between PCBs and ΣDDT in both seawater and organisms. In higher trophic level organisms, the bioconcentration factors (BCFs) increased, and variable compositions of PCBs and chlordane compounds were also found. Concentration levels of ΣDDT and PCBs in the antarctic marine ecosystem were about two orders of magnitude lower than those in the western North Pacific. The low levels are most likely attributable to the low concentration of these chemicals in seawater under the antarctic fast ice, which might be caused by the specific environmental characteristics in the Antarctic relating to its locality being far away from the intensive regions of industrial and human activities on the earth, the ice covering and the high bioproductivity during the austral summer.
- 国立極地研究所の論文
著者
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Tanabe Shinsuke
Department Of Environment Conservation Faculty Of Agriculture Ehime University
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Tanabe Shinsuke
Tokyo University Of Fisheries
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Tanabe S
Tokyo University Of Fisheries
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TATSUKAWA Ryo
Department of Environment Conservation, Ehime University
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Kawano Masahide
Tokyo University of Fisheries
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Tatsukawa Ryo
Tokyo University of Fisheries
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Hideaki Hideo
Department of Environment Conservation,Faculty of Agriculture, Ehime University
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Kawano Masahide
Department of Environment Conservation,Faculty of Agriculture, Ehime University
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Tatsukawa Ryo
Department Of Environment Conservation Ehime University
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Hidaka H
Department Of Environment Conservation Faculty Of Agriculture Ehime University
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Kawano Masahide
Department Of Environment Conservation Ehime University
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Hideaki Hideo
Department Of Environment Conservation Faculty Of Agriculture Ehime University
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Tanabe Shinsuke
Department Of Environment Conservation Ehime University
関連論文
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- Fate of DDTs, PCBs and chlordane compounds in the Antarctic marine ecosystem
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- Absorption Efficiency and Biological Half-Life of Individual Chlorobiphenyls in Rats Treated with Kanechlor Products
- Body Burdens and Distribution of Mercury and Selenium in Striped Dolphins
- Mercury and Selenium Levels at the Fetal and Suckling Stages of Striped Dolphin, Stenella coeruleoalba
- Composition of Chemical Components in Bone of Striped Dolphin, Stenella coeruleoalba: Distribution Characteristics of Heavy Metals in Various Bones