...
【24h】

Industrial contaminants in Antarctic biota

机译:南极生物群中的工业污染物

获取原文
获取原文并翻译 | 示例
           

摘要

A critical review of the levels and patterns of industrial contaminants in biota from Antarctica and the Southern Ocean revealed that concentrations are low with respect to other regions of the world, although in some specimens/species (e.g. leopard seal, some invertebrates) they are occasionally high and comparable to those found in regions with a strong human impact; the highest levels of persistent organic pollutants (POPs) were detected in the vicinity of scientific stations. Bioconcentration prevails at the lower trophic levels of pelagic food webs, while biomagnification can become the main route of contamination at higher levels. In a benthic food web, biomagnification poses a major risk for organisms that accumulate lipids to overwinter. compared to those that accumulate glycogen. Hexachlorobenzene, DDTs and chlordanes showed similar concentrations and patterns in the 1980s-1990s period in organisms from Western and Eastern Antarctica, while the polychlorinated biphenyls time trend was different in a variety of species from the two regions. (C) 2008 Elsevier B.V. All rights reserved.
机译:对南极洲和南大洋生物群中工业污染物的水平和模式进行的严格审查显示,相对于世界其他地区,其浓度较低,尽管在某些标本/物种(例如,豹海豹,一些无脊椎动物)中,它们偶尔是很高,可与人类影响力大的地区相媲美;在科学站附近发现了最高水平的持久性有机污染物。在富营养化食物网的营养层较低时,生物浓缩占主导地位,而在生物营养放大时,较高水平的污染则成为主要的污染途径。在底栖食物网中,生物放大作用会给积聚脂质的生物越冬带来重大风险。与那些积累糖原的人相比。在南极西部和东部的生物中,六氯苯,滴滴涕和氯丹在1980年代至1990年代期间显示出相似的浓度和模式,而在这两个地区的各种物种中,多氯联苯的时间趋势却不同。 (C)2008 Elsevier B.V.保留所有权利。

著录项

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