%0 Journal Article
%T Pollution Characterization and Source Apportionment of Polybrominated Diphenyl Ethers in Autumn Air of Xi''an<br>西安城区秋季大气中多溴联苯醚的污染特征及来源分析
%A JIANG Jun-li
%A ZHANG Cheng-zhong
%A MA Wan-li
%A YANY Meng
%A ZHOU Bian-hong
%A LIU Li-zhong
%A LI Yi-fan
%A <br>蒋君丽
%A 张承中
%A 马万里
%A 杨萌
%A 周变红
%A 刘立忠
%A 李一凡
%J 环境科学
%D 2011
%I 
%X Air samples in gas and particle phases were collected using a high volume active sampler from August to October in 2008 at Xi'an for evaluating the pollution level of polybrominated diphenyl ethers (PBDEs). Lower brominated PBDEs and BDE-209 were analyzed via GC-MS and GC/ECD, respectively. The total concentrations (gas plus particle phases) of 12 PBDEs were ranged from 37.43 to 620.30 pg/m3, with an average of 216.28 pg/m3, while tri- to hexa-brominated congeners (Sigma11 PBDEs) ranged from 16.32 to 86. 49 pg/m3, BDE-209 ranged from 16. 34 to 576.01 pg/m3. Tri- to tetra-brominated congeners existed mainly in gas phase, tetra- to hexa-brominated congeners were predominated in particle phase, and BDE-209 was detected only in particle phase. The proportion of PBDEs in particle phase increased with bromine number. Gas-particle partition coefficient of PBDEs was well correlated with sub-cooled liquid vapor pressure, and the partitioning of PBDEs between gas and particle phases were close to equilibrium. Correlation analysis indicated that all the PBDEs have good coefficients except BDE-85. Source analysis indicated that PBDEs in the atmosphere of Xi'an were mainly from the Penta-BDE and Deca-BDE contamination.
%K polybrominated diphenyl ethers (PBDEs)
%K Xi'an
%K gas-particle partitioning
%K correlations
%K factor analysis<br>多溴联苯醚
%K 西安
%K 气粒分配
%K 相关性
%K 因子分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=4446B7224B0652444A59F3C733CFF32B&yid=9377ED8094509821&vid=9971A5E270697F23&iid=5D311CA918CA9A03&sid=A07AB8F8354CD3EE&eid=13DBB7F2E4FCEC67&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=15