Geographical distribution of polybrominated diphenyl ethers (PBDEs) and organochlorines in small cetaceans from Asian waters.
Geographical distribution of polybrominated diphenyl ethers (PBDEs) and organochlorines in small cetaceans from Asian waters.
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DOI：
10.1016/j.chemosphere.2005.12.013
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发表时间：
2006-06
期刊：
影响因子：
8.8
通讯作者：
N. Kajiwara;Satoko Kamikawa;K. Ramu;D. Ueno;T. Yamada;A. Subramanian;P. K. Lam;T. Jefferson;M. Prudente;K. Chung;S. Tanabe
中科院分区：
文献类型：
--
作者：
N. Kajiwara;Satoko Kamikawa;K. Ramu;D. Ueno;T. Yamada;A. Subramanian;P. K. Lam;T. Jefferson;M. Prudente;K. Chung;S. Tanabe
多溴联苯醚(PBDEs)是一种广泛应用于塑料、纺织品、电子产品和家用电器的阻燃剂。在这项研究中，从爱慕大学全球监测环境标本库(ES-BANK)的存档样品中测定了多溴二苯醚和有机氯化合物(OCS)。对1990-2001年间在日本、香港、菲律宾和印度沿海搁浅的鲸脂进行了化学分析，以了解污染现状和多溴二苯醚的具体积累情况。在所分析的所有鲸目动物样本中都检测到了多溴二苯醚，其浓度比多氯联苯和滴滴涕的浓度低一个或两个数量级。来自印度的长吻海豚(Stenella Long Girostris)体内的多溴二苯醚含量最低为6.0 ng/g脂肪重量，而来自香港的印度太平洋座头海豚(Sousa Chinensis)的含量最高为6000 ng/g脂肪重量。来自日本的沿海和近海物种的多溴联苯醚水平没有差异，这意味着该地区除日本以外还有其他污染源的存在。来自香港的动物体内的多溴二苯醚浓度最高，其次是日本，而菲律宾和印度的多溴二苯醚含量要低得多，这表明发展中国家可能也有多溴二苯醚的污染源。亚洲水域中多溴二苯醚的地理分布与多氯联苯不同，但与滴滴涕相似。
Polybrominated diphenyl ethers (PBDEs) are one of the flame retardants widely used in plastics, textiles, electronic appliances, and electrical household appliances. In this study, PBDEs and organochlorine compounds (OCs) were determined in the archived samples from the Environmental Specimen Bank for Global Monitoring (es-BANK) at Ehime University. The blubber of cetaceans found stranded along the coasts of Japan, Hong Kong, the Philippines and India during the period from 1990 to 2001 were employed for chemical analysis to understand the present status of contamination and the specific accumulation of PBDEs. PBDEs were detected in all the cetacean samples analyzed, and concentrations were one or two orders of magnitude lower than for PCBs and DDTs. Concentrations of PBDEs ranged from a low value of 6.0ng/g lipid wt. in spinner dolphin (Stenella longirostris) from India to a high value of 6000ng/g lipid wt. in Indo-Pacific humpback dolphin (Sousa chinensis) from Hong Kong. No difference in PBDE levels between coastal and offshore species from Japan was observed, implying the existence of pollution sources in this region other than Japan. Highest concentrations of PBDEs were found in animals from Hong Kong, followed by Japan, and much lower levels from the Philippines and India, suggesting that developing nations may also have pollution sources of PBDEs. Geographical distribution of PBDEs in Asian waters was different from PCBs but similar to DDTs.