title: Occurrence and trophic magnification of polybrominated diphenyl ethers (PBDEs) and their methoxylated derivatives in freshwater fish from Dianshan Lake, Shanghai, China.
abstract: In this study, polybrominated diphenyl ethers (PBDEs) and methoxylated polybrominated diphenyl ethers (MeO-PBDEs) were analyzed in eleven freshwater fish species from Dianshan Lake, Shanghai, China. The highest concentrations of PBDEs and MeO-PBDEs were found in snakehead, with mean values of 38 ng g-1lw and 4.2 ng g-1lw, respectively. BDE-47 was the predominant congener of PBDEs, followed by BDE-154. Congener pattern variation of PBDEs was observed among different fish species, implying differences in biotransformation potential among fish. Yellow catfish showed highest concentrations of BDE-99, -153 and -183, suggesting that it is more resistant to debromination than any other fish analyzed in the present study. Trophic magnification factors were in the range of 1.35-1.81 for all the PBDE congeners, but not for 2'-MeO-BDE-68. Negative relationship was observed between PBDEs concentration and sample size (length and weight), indicating fish size dilution effect.
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691 Stockholm, Sweden.
authors.forename: Yihui
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Qiaofeng
authors.initials: Q
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Xinyu
authors.initials: X
authors.lastname: Du
authors.affiliation: Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691 Stockholm, Sweden.
authors.forename: Ge
authors.initials: G
authors.lastname: Yin
authors.affiliation: Key Laboratory of Yangtze River Water Environment (Ministry of Education), College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China. Electronic address: ylqiu@tongji.edu.cn.
authors.forename: Yanling
authors.initials: Y
authors.lastname: Qiu
authors.affiliation: Jiading District Environmental Monitoring Station, Shanghai 201822, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Ye
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Zhiliang
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Jianfu
authors.initials: J
authors.lastname: Zhao
mesh_terms: D000818:Animals; D000840:Anisoles / Q000032:analysis / Q000378:metabolism*; D002681:China; D004784:Environmental Monitoring; D005399:Fishes / Q000378:metabolism*; D020387:Food Chain; D055768:Halogenated Diphenyl Ethers / Q000032:analysis / Q000378:metabolism*; D060106:Lakes / Q000737:chemistry*; D011075:Polybrominated Biphenyls / Q000032:analysis / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
chemical_list: D000840:Anisoles; D055768:Halogenated Diphenyl Ethers; D011075:Polybrominated Biphenyls; D014874:Water Pollutants, Chemical
keywords: Debromination; Fish size; Food web; Metabolism; PBDEs; Stable isotope ratio; Yellow catfish