Application of compound-specific stable carbon isotope analysis for the biotransformation and trophic dynamics of PBDEs in a feeding study with fish

被引：21
|
作者：
Luo, Xiao-Jun [1 ]
Zeng, Yan-Hong [1 ,2 ]
Chen, Hua-Shan [1 ]
Wu, Jiang-Ping [1 ]
Chen, She-Jun [1 ]
Mai, Bi-Xian [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100864, Peoples R China
来源：
ENVIRONMENTAL POLLUTION | 2013年 / 176卷
关键词：
PBDEs; Compound-specific stable carbon isotope analysis; Metabolism debromination; Exposure experiment; POLYBROMINATED DIPHENYL ETHERS; BROMINATED FLAME RETARDANTS; PEARL RIVER ESTUARY; POLYCHLORINATED-BIPHENYLS; ORGANIC CONTAMINANTS; BIOMAGNIFICATION; BIOACCUMULATION; FRACTIONATION; FIELD; DEBROMINATION;
D O I：
10.1016/j.envpol.2013.01.025
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The debromination and trophic dynamics of PBDEs in fish and whether or not compound-specific isotopic analysis (CSIA) can be used to trace these processes were investigated. Two predator/prey relationships were established in laboratory by two predatory fish species, oscar fish (OF) and redtail catfish (RF) feeding on tiger barb (TB) exposed to a commercial PBDE mixture. Metabolic debromination of PBDEs was observed in the TB and the OF, but not in the RE The calculated biomagnification factors (BMFs) were uniform for most of the congeners in RF/TB but varied in OF/TB, which can be attributed to the metabolic debromination in the OR The delta C-13 values of BDE47 and BDE28 were lower in fish than in those in the commercial mixture but the delta C-13 values of BDE99 were slightly higher. These results indicated that CSIA can be used to trace the biotransformation of PBDEs in biota. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：36 / 41
页数：6
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