Wang Xue-Tong, Wang Fei, Jia Jin-Pan, Li Yuan-Cheng, Sun Yang-Zhao, Wu Ming-Hong, Sheng Guo-Ying, Fu Jia-Mo
Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
Huan Jing Ke Xue. 2011 Apr;32(4):1088-93.
The concentrations of 41 polybrominated diphenyl ethers (PBDEs) in the river sediments from Luqiao were analyzed by GC-NCI-MS. The objectives of this study were to understand the contents, spatial distribution and sources. The Sigma40 PBDEs (excluding BDE209) concentrations in sediments sampled were in the range of 0.177 to 161 ng x g(-1), with a mean of 22.5 ng x g(-1), and the concentrations of BDE209 were from 0.36 to 958 ng x g(-1), with a mean of 148 ng x g(-1). Deca-BDE was the most predominant in 9 PBDE homologues in most of samples, accounting for 38.4%-96.0%, with an average of 74.4% nona-BDEs and hepta-BDEs, accounting for 3.3%-25.8% and 0.01%-14.1%, respectively. Significant correlations were observed among all of PBDEs congeners, which suggested these PBDEs might have the similar sources. The homologue composition of PBDEs and hierarchical cluster analysis (HCA) showed that most of sampling sites were mainly polluted by deca-BDE formulation, and others polluted by deca-BDE and octa-BDE formulations. Compared to other studies from different countries and regions, the PBDEs concentrations in the present study were at a medium-to-low level. But it should be concerned that a few of sampling sites were highly contaminated by point sources.
采用气相色谱-负离子化学源质谱法（GC-NCI-MS）分析了路桥河流沉积物中41种多溴二苯醚（PBDEs）的浓度。本研究的目的是了解其含量、空间分布及来源。所采集沉积物中Σ40多溴二苯醚（不包括BDE209）浓度范围为0.177至161 ng x g(-1)，均值为22.5 ng x g(-1)，BDE209浓度为0.36至958 ng x g(-1)，均值为148 ng x g(-1)。在大多数样品的9种多溴二苯醚同系物中，十溴二苯醚最为主要，占38.4%-96.0%，九溴二苯醚和七溴二苯醚平均分别占74.4%、3.3%-25.8%和0.01%-14.1%。所有多溴二苯醚同系物之间均存在显著相关性，这表明这些多溴二苯醚可能具有相似的来源。多溴二苯醚的同系物组成及层次聚类分析（HCA）表明，大多数采样点主要受十溴二苯醚配方污染，其他采样点受十溴二苯醚和八溴二苯醚配方污染。与其他国家和地区的研究相比，本研究中的多溴二苯醚浓度处于中低水平。但应关注的是，少数采样点受到点源的高度污染。
