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| The distribution of polybrominated piphenyl rther in the sediment of East China Sea |
| ZHOU Peng1, LIN Kuang-fei2, YU Hui-juan1, ZHAO Jian-hua2, CAI You-qiong1, LIU Li-li2 |
1. Laboratory of Quality and Safety Risk Assessment for Aquatic Products(Shanghai), Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Science, Shanghai 200090, China;
2. East China University of Science and Technology, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237, China |
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Abstract In this study, 28surface sediment and 7core sediment samples were collected from the East China Sea (ECS) to determine the distribution properties of polybrominated diphenyl ethers (PBDEs). The concentrations of total PBDEs (excepted BDE-209) in surface sediment samples were in the range of 0.20~2.09ng/g dw. Among the detected congeners, BDE-209 was the predominant congener with the corresponding concentration ranging from 0.57~2.87ng/g dw (57.9%~76.7% of total PBDEs), followed by BDE-99 and BDE-47. Moreover, the concentrations of PBDEs decreased with the increase of distance between sampling sites and coastline and increased from the north to south. The distribution trends of PBDEs in core sediment samples from the ECS matched well with the application history and status of PBDEs products in China. The ratios of total organic carbon (TOC) in the surface and core sediment samples were ranged from 0.54%~0.88% and 0.62%~0.88% respectively. And the correlations between TOC and PBDEs in both surface (R2=0.723, P < 0.01) and core (R2=0.595, P < 0.01) sediment samples indicated that TOC might be one of the impact factors for the characteristics of PBDEs distribution in sediment.
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Received: 20 May 2015
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