[中国东北地区河流流域沉积物中多溴二苯醚的生态风险及含量状况分析]
[Analysis of ecological risk and the content situation of polybrominated diphenyl ethers in sediments from Northeast China River Basin].
作者信息
Nie Hai-Feng, Cheng Hang-Xin, Zhao Chuan-Dong, Liu Ying-Han, Yang Ke, Li Kuo, Peng Min, Liu Fei
机构信息
School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China.
Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China.
出版信息
Huan Jing Ke Xue. 2013 Oct;34(10):3825-31.
To investigate the polybrominated diphenyl ethers (PBDEs) pollution status, sediment samples were collected from major rivers in northeast China. Contents of 41 PBDEs congeners in sediments were measured using GC-NCI-MS. BDE209 was not detected, measured level of total PBDEs (excluding BDE209) ranged from 0.91 to 17.67 ng.g-1 dry weight, the highest concentrations of PBDEs were detected in the sediment samples from upstream and downstream of Jilin City in the Second Songhua River Basin, with 15.86 and 17.67 ng.g-1. BDE207 and BDE47 were the predominant PBDE congeners, with their concentrations accounting for 86. 5% and 76. 6% of the total PBDEs concentration measured in the samples. Each congener content difference was not obvious in other river sediments. PBDEs levels monitored in the present study were compared to those reported recently for districts located at home and abroad, and with ecological risk analysis. PBDEs content is at a low level in sediments of Northeast China River Basin and there is no ecological risk.
为调查多溴二苯醚（PBDEs）污染状况，采集了中国东北主要河流的沉积物样本。采用气相色谱-负离子化学源质谱法（GC-NCI-MS）测定沉积物中41种多溴二苯醚同系物的含量。未检测到BDE209，总多溴二苯醚（不包括BDE209）的测定水平为0.91至17.67 ng·g-1干重，在第二松花江流域吉林市上下游的沉积物样本中检测到的多溴二苯醚浓度最高，分别为15.86和17.67 ng·g-1。BDE207和BDE47是主要的多溴二苯醚同系物，其浓度分别占样本中总多溴二苯醚浓度的86.5%和76.6%。其他河流沉积物中各同系物含量差异不明显。将本研究监测的多溴二苯醚水平与最近国内外相关地区报道的水平进行了比较，并进行了生态风险分析。中国东北河流流域沉积物中的多溴二苯醚含量处于较低水平，不存在生态风险。
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