您好，欢迎访问浙江省农业科学院 机构知识库！
浙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Bioaccumulation of dichlorodiphenyltrichloroethanes (DDTs) in carp in a water/sediment microcosm: important role of sediment particulate matter and bioturbation

文献类型： 外文期刊

作者： Di, Shanshan 1 ; Diao, Jinling 4 ; Wang, Xiangyun 1 ; Qi, Peipei 1 ; Wang, Zhiwei 1 ; Xu, Hao 1 ; Zhang, Hu 1 ; Wang, Xin 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, Desheng Middle Rd 298, Hangzhou 310021, Zhejiang, Peoples R China

2.Agr Minist Key Lab Pesticide Residue Detect, Hangzhou 310021, Zhejiang, Peoples R China

3.Key Lab Detect Pesticide Residues & Control Zheji, Hangzhou 310021, Zhejiang, Peoples R China

4.China Agr Univ, Dept Appl Chem, Yuanmingyuan West Rd 2, Beijing 100193, Peoples R China

5.Univ Toronto, Dept Chem, Toronto, ON, Canada

关键词： DDTs; Sediment; T. tubifex; Carp; Bioaccumulation

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

ISSN： 0944-1344

年卷期： 2019 年 26 卷 10 期

页码：

收录情况： SCI

摘要： Sediments are reservoirs and sources of DDTs to the aquatic ecosystem. However, the role of sediment particulate matter and benthic organisms in transferring DDTs remains unclear. In this study, microcosms were built up with different groups to simulate a freshwater system with DDT-contaminated sediment and organisms. The impacts of different exposure routes (water and sediment) on the changes of DDT and its metabolites (DDD and DDE) in carp (Cyprinus carpio) were investigated. The bioturbation of Tubifex tubifex (Oligochaeta, Tubificidae) was investigated to understand the fate and transfer of DDTs in aquatic environment. For the sediment treatment, the concentrations of o,p'-DDT in carp were significantly higher than those of p,p'-DDT, and the metallothionein (MT) content decreased. The bioaccumulation of DDTs in carp via sediment particulate matter was significantly higher/faster than that via overlying water. T. tubifex and sediment particulate matter accelerate DDT bioaccumulation in carp. Selective enrichment of the (+)-o,p'-DDT and (+)-o,p'-DDD was found in carp. These results help to reduce uncertainty in ecological and health risk assessments and to better understand the risk of DDTs in the environment.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：浙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台