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西安城区秋季大气中多溴联苯醚的污染特征及来源分析
引用本文:蒋君丽,张承中,马万里,杨萌,周变红,刘立忠,李一凡. 西安城区秋季大气中多溴联苯醚的污染特征及来源分析[J]. 环境科学, 2011, 32(8): 2226-2230
作者姓名:蒋君丽  张承中  马万里  杨萌  周变红  刘立忠  李一凡
作者单位:1. 西安建筑科技大学环境与市政工程学院,西安,710056
2. 哈尔滨工业大学城市水资源与水环境国家重点实验室国际持久性有毒物质联合研究中心,哈尔滨,150090
3. 大连海事大学国际持久性有毒物质联合研究中心,大连,116026
4. 哈尔滨工业大学城市水资源与水环境国家重点实验室国际持久性有毒物质联合研究中心,哈尔滨150090 大连海事大学国际持久性有毒物质联合研究中心,大连116026
基金项目:陕西自然科学基金项目(2007D20);陕西省教育厅专项科研基金项目(06JK268)
摘    要:为了评估西安大气中多溴联苯醚(PBDEs)的污染程度,2008年8~10月,利用大流量主动采样器采集了西安城区气态和颗粒态大气样品.分别利用GC-MS和GC/ECD对低溴PBDEs和BDE-209进行分析,12种PBDEs的总浓度(气相+颗粒相)范围为37.43~620.30 pg/m3,平均值为216.28 pg/m...

关 键 词:多溴联苯醚  西安  气粒分配  相关性  因子分析
收稿时间:2010-09-26
修稿时间:2011-01-27

Pollution Characterization and Source Apportionment of Polybrominated Diphenyl Ethers in Autumn Air of Xi'an
JIANG Jun-li,ZHANG Cheng-zhong,MA Wan-li,YANY Meng,ZHOU Bian-hong,LIU Li-zhong and LI Yi-fan. Pollution Characterization and Source Apportionment of Polybrominated Diphenyl Ethers in Autumn Air of Xi'an[J]. Chinese Journal of Environmental Science, 2011, 32(8): 2226-2230
Authors:JIANG Jun-li  ZHANG Cheng-zhong  MA Wan-li  YANY Meng  ZHOU Bian-hong  LIU Li-zhong  LI Yi-fan
Affiliation:School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China. jiangjl1010@163.com
Abstract: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.
Keywords:polybrominated diphenyl ethers (PBDEs)   Xi'an   gas-particle partitioning   correlations   factor analysis
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