...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Archives of Environmental Contamination and Toxicology >Accumulation Profiles of Persistent Organochlorines in Waterbirds from an Estuary in Korea
【24h】

Accumulation Profiles of Persistent Organochlorines in Waterbirds from an Estuary in Korea

机译：韩国河口水鸟中持久性有机氯的累积特征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Persistent organochlorine pollutants (POPs), such as polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), polychlorinated biphenyls (PCBs), and organochlorine (OC) pesticides such as DDTs (dichlorodiphenyltrichloroethane), HCHs (hexachlorocyclohexane isomers), CHLs (chlordane compounds) and HCB (hexachlorobenzene), were measured in subcutaneous fat of resident and migratory birds collected from the Nakdong River estuary (NRE) in Korea. Black-tailed gull, a resident bird from the NRE, contained greater concentrations of PCDD/Fs and PCBs than the migratory birds collected in the estuary. For example, mean concentrations of PCDD/Fs in black-tailed gull (395.5 pg/g fat weight) were higher than those in migratory birds, such as greenshank (198.3 pg/g fat weight), common gull (90.9 pg/g fat weight) black-headed gull (84.2 pg/g fat weight), and common tern (47.1 pg/g fat weight). However, concentrations of DDTs and/or HCHs were great in some migratory species, such as little tern (mean DDT 6,200 ng/g fat weight) and black-necked grebe (HCHs 475 ng/g fat weight). This suggested that contamination of PCDD/Fs and PCBs in resident gulls are due to intake of locally contaminated fish near the NRE. Elevated OC pesticide levels in migratory birds indicated that these birds have been exposed to DDTs and HCHs during their migration in Southeast Asian countries where chlorinated pesticides are still used. 2,3,7,8-Tetrachloro dibenzo-p-dioxin equivalents (TEQs) were calculated using the toxic equivalency factors (TEFs) reported by World Health Organization in 1998. Four of the 2,3,7,8-substituted congeners of PCDD/Fs contributed over 90% of the TEQs.
机译：持久性有机氯污染物（POP），例如多氯二苯并对二恶英（PCDD），多氯二苯并呋喃（PCDF），多氯联苯（PCB）和有机氯（OC）农药，例如DDT（二氯二苯基三氯乙烷），HCH（六氯环己烷异构体），测定了从韩国那洞河河口（NRE）采集的常住和候鸟的皮下脂肪中的CHL（氯丹化合物）和HCB（六氯苯）。黑尾鸥（NRE的常住鸟类）所含的PCDD / Fs和PCBs浓度要比河口收集的候鸟高。例如，黑尾鸥（395.5 pg / g脂肪重量）中PCDD / Fs的平均浓度高于候鸟，例如绿胫（198.3 pg / g脂肪重量），普通鸥（90.9 pg / g脂肪）体重）黑头鸥（脂肪重量84.2 pg / g）和普通燕鸥（脂肪重量47.1 pg / g）。但是，在某些迁徙物种中，滴滴涕和/或六氯环己烷的浓度很高，例如燕鸥很少（平均滴滴涕6,200 ng / g脂肪重量）和黑颈（HCHs 475 ng / g脂肪重量）。这表明居民海鸥中PCDD / Fs和PCBs的污染是由于在NRE附近摄入了局部污染的鱼。候鸟中OC农药含量升高表明这些鸟在其仍使用氯化农药的东南亚国家迁移期间接触了滴滴涕和六氯环己烷。 2,3,7,8-四氯二苯并-对-二恶英当量（TEQ）使用世界卫生组织1998年报告的毒性当量因子（TEF）进行计算。2,3,7,8取代的同系物中有四个PCDD / F贡献了超过90％的TEQ。

著录项

  • 来源
  • 作者

    J. W. Choi; M. Matsuda; M. Kawano; B. Y. Min; T. Wakimoto;

  • 作者单位

    Department of Environment Conservation Ehime University Tarumi 3-5-7 Matsuyama 790-8566 Ehime Japan;

    Department of Environment Conservation Ehime University Tarumi 3-5-7 Matsuyama 790-8566 Ehime Japan;

    Department of Environment Conservation Ehime University Tarumi 3-5-7 Matsuyama 790-8566 Ehime Japan;

    Department of Environmental Protection Kyungnam University Weolyoungdong 490 Masan 631-701 Kyungnam Korea;

    Department of Environment Conservation Ehime University Tarumi 3-5-7 Matsuyama 790-8566 Ehime Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号