Distribution characteristics of polychlorinated biphenyls (PCBs) in coastal areas of Okinawa Island, Japan

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Distribution characteristics of polychlorinated biphenyls (PCBs) in coastal areas of Okinawa Island, Japan

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Surface sediment and seawater samples were collected from coastal areas around Okinawa Island from September 2001 to May 2002. The samples were analyzed for total polychlorinated biphenyl (PCB) levels and homolog composition. The results show that total PCB levels ranged from 0.32 to 128.7 ng/g (dry wt.) in sediment and 1.59 to 2.48 ng/L in seawater. The levels exceed the Environmental Quality Standard (EQS) for water pollution of Japan. The distribution of PCB homolog showed different patterns in the sediments and seawaters. Penta-chlorobiphenyls (CBs) comprised the main congener group in seawater, while hexa-CBs were more abundant homologs in the sediments. The heavily contaminated sites featured higher CBs, including penta-CBs, hexa-CBs, and hepta-CBs, than those in less contaminated sites where tri-CBs dominated. This study provides current distribution and geochemical behavior of PCBs in the coastal areas around Okinawa Island.

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《中国海洋湖沼学报（英文版）》 |2007年第3期|247-253|共7页
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Marine and Environmental Science, Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru,Nishihara-Town, Okinawa 903-0213, Japan;

Detachment 3, Air Force Institute for Operational Health (AFIOH), Armstrong Laboratory;

Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, 1 Senbaru,Nishihara-Town, Okinawa 903-0213;

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原文格式 PDF
正文语种 chi
中图分类海洋学;
关键词
PCBs; Okinawa Island; homolog; coastal pollution;

机译：多氯联苯;冲绳岛;同系物;沿海污染;

Distribution characteristics of polychlorinated biphenyls (PCBs) in coastal areas of Okinawa Island, Japan

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