Bioaccumulation of polybrominated diphenyl ethers (PBDEs) in sediment aged for 2 years to carps (Cyprinus carpio)

3rd International Conference on Water Resource and Environment

地球科学;生态环境科学

Tian, S.Y.^1,2 ; Li, J.Y.^1 ; Jia, X.M.^1

College of Marine and Environmental Sciences, Tianjin University of Science and Technology, Tianjin

300457, China^1

Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin

300457, China^2

关键词: Aquatic system;    Contaminated sediment;    Cyprinus carpio;    Fish tissue;    Polybrominated diphenyl ether (PBDEs);   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/82/1/012053/pdf
DOI  :  10.1088/1755-1315/82/1/012053

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to understand the risk of polybrominated diphenyl ethers (PBDEs) existing in sediment for years, the accumulation of PBDEs in sediment aged for 2 years to fish was investigated. Simulated aquatic system microcosms were conducted with PBDE contaminated sediment aged for 2 years and carps were cultured in the microcosms for 20 days. PBDE concentrations in carp tissues were analyzed to estimate the bioavailability of aged PBDEs in carps. The main spiked PBDE congeners were detected in sediment even though the contaminated sediment was aged for 2 years. Similarly, the five PBDE (BDE-28, 47, 100, 153 and 154) congeners which probably were bioaccumulated by carp were detected in fish tissues, indicating that PBDEs could be bioaccumulated after aging for 2 years. The PBDEs distribution revealed that the concentrations of polybrominated diphenyl ethers in tissues of Cyprinus carpio is in this order of magnitude: gut > liver > gill > fillet. The PBDEs concentrations in fillet were as high as 67.9 ng/g dry wt, in which BDE-47 contributed almost 50% in profile.