| 北京地区大气颗粒物中正构烷烃的粒径分布及污染源示踪研究 |
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| 引用本文： | 周家斌,王铁冠,黄云碧,毛婷,钟宁宁,张逸,张晓山. 北京地区大气颗粒物中正构烷烃的粒径分布及污染源示踪研究[J]. 中国石油大学学报(自然科学版), 2004, 28(5) |
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| 作者姓名： | 周家斌 王铁冠 黄云碧 毛婷 钟宁宁 张逸 张晓山 |
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| 作者单位： | 1. 石油大学资源与信息学院,北京,102249
2. 中国科学院生态环境研究中心,北京,100085 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金项目(20030425007) |
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| 摘 要： | 用气相色谱质谱技术分析了北京城乡结合区和郊区冬季大气颗粒物中饱和烃组分,检测出C11～C35正构烷烃及18种甾烷和32种萜类化合物,分析了它们在不同粒径颗粒物中的分布特征。运用分子地球化学参数对污染源进行的初步示踪研究结果表明,颗粒物粒径越细,正构烷烃越趋向于单峰形分布,碳优势指数越低。这两个地区大气主要受化石燃料残余物的污染,其中郊区还显示出高等植物蜡和微生物源的输入特征,城乡结合区受燃煤的影响更大些。
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| 关 键 词： | 北京地区 大气颗粒物 正构烷烃 甾烷 萜类化合物 粒径分布 污染源 示踪研究 |
Tracing study on pollutants and size distribution of n-Alkanes in airborne particles in Beijing area |
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| ZHOU Jia-bin,WANG Tie-guan,HUANG Yun-bi,MAO Ting,ZHONG Ning-ning,ZHANG Yi,ZHANG Xiao-shan. Tracing study on pollutants and size distribution of n-Alkanes in airborne particles in Beijing area[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 2004, 28(5) |
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| Authors: | ZHOU Jia-bin WANG Tie-guan HUANG Yun-bi MAO Ting ZHONG Ning-ning ZHANG Yi ZHANG Xiao-shan |
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| Affiliation: | ZHOU Jia-bin~1,WANG Tie-guan~1,HUANG Yun-bi~1,MAO Ting~1,ZHONG Ning-ning~1,ZHANG Yi~2,ZHANG Xiao-shan~2 |
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| Abstract: | Aliphatic components of airborne particles in winter over urban border area and suburban area in Beijing were analyzed by gas chromatograph-mass spectrometer. The n-alkane homologs from C_(11) to C_(35), 18 kinds of steranes and 32 types of terpenoids were detected. The size distributions of those components were discussed. The preliminary tracing study on pollutant source using some molecular geochemical parameters was conducted. The results indicate that the smaller sizes of airborne particle result in the lower CPI value and a stronger tendency of unimodal distribution for n-alkanes. The atmosphere in the two areas was mainly polluted by fossil fuels residue. The suburban area shows obvious input of pollutants from high plant wax and microbial sources. The pollution of coal combustion is relative predominant at urban border area. |
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| Keywords: | Beijing area airborne particles n-alkane sterane terpenoids size distribution pollutant source tracing study |
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