Levels and distribution of polybrominated diphenyl ethers in Three Gorges Reservoir,China  

作　　者：Jingxian Wang Yonghong Bi Bernhard Henkelmann Zeyu Wang Gerd Pfister Karl-Werner Schramm 

机构地区：[1]State Key Laboratory of Freshwater Ecology and Biotechnology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan,430072,China [2]Helmholtz Zentrum München-German Research Center for Environmental Health(GmbH),Molecular EXposomics(MEX),Ingolst€adter Landstr.1,D-85764,Neuherberg,Germany [3]Technische Universit€at München,Wissenschaftszentrum Weihenstephan für Ern€ahrung,Landnutzung und Umwelt,Department für Biowissenschaften,Weihenstephaner Steig 23,85350,Freising,Germany [4]Department of Engineering,University of Waterloo,Ontario,Canada

出　　处：《Emerging Contaminants》2017年第1期40-45,共6页新兴污染物（英文）

基　　金：the German Ministry of Education and Research(BMBF 02WT1132).

摘　　要：Polybrominated diphenyl ethers(PBDEs)were investigated in water,sediments,suspended sediments and biofilms in Three Gorges Reservoir(TGR),China.Results showed that dissolved bioavailable PBDEs in water of TGR collected with semipermeable membrane device(SPMD)-based virtual organisms(VOs)were very low in the range of n.d.to 811 pg/g lipid and the detected compounds were mainly low molecular BDEs such as BDE-15,17,28,47,49,66,99 and 100.The PBDE levels in the sediment core collected near the dam were also very low in the range of 84e300 pg/g dw and the detected compounds were mainly large molecular BDEs such as BDE-196,197,206,207 and 208.In suspended sediments and biofilms,the levels of PBDEs ranged from 298 to 52,843 pg/g dw and the detected compounds were also mainly large molecular BDEs such as BDE-196,197,201,203,206,207,208 and 209.The dominant compound was BDE-209 which accounted for more than 90%of the total BDEs.Therefore,large molecular BDEs tended to be attached on fine particles.The vertical profile of BDEs on suspended sediments(SS)showed that SSs in the middle depth of water contained high level of BDE-209.The phenomenon indicated that most of BDE-209 did not settle into the sediment in front of the dam,instead transported further to downstream.

关 键 词：PBDE Virtual organism(VO) SEDIMENT Suspended sediment(SS) BIOFILM Three Gorges Reservoir(TGR) 

分 类 号：O62[理学—有机化学]