| Characteristics of Aerosol Ionic Compositions in Summer 2003 at Lin'an of Yangtze Delta Region |
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| 作者姓名： | YAN Peng ZHANG Yangmei YANG Dongzhen TANG Jie ZHOU Xiuji |
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| 作者单位： | Center for Atmospheric Watch and Services of CMA Chinese Academy of Meteorological Sciences，Center for Atmospheric Watch and Services of CMA Chinese Academy of Meteorological Sciences，Center for Atmospheric Watch and Services of CMA Chinese Academy of Meteorological Sciences，Center for Atmospheric Watch and Services of CMA Chinese Academy of Meteorological Sciences，Center for Atmospheric Watch and Services of CMA Chinese Academy of Meteorological Sciences Beijing 100081 Department of Atmospheric Sciences，Peking University，Beijing 100871，Beijing 100081 Key Laboratory for Atmospheric Chemistry of CMA，Chinese Academy of Meteorological Sciences，Beijing 100081，Beijing 100081 Key Laboratory for Atmospheric Chemistry of CMA，Chinese Academy of Meteorological Sciences，Beijing 100081，Beijing 100081 Key Laboratory for Atmospheric Chemistry of CMA，Chinese Academy of Meteorological Sciences，Beijing 100081，Beijing 100081 Key Laboratory for Atmospheric Chemistry of CMA，Chinese Academy of Meteorological Sciences，Beijing 100081 |
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| 基金项目： | Supported jointly by the China Ministry of Science and Technology Project No. 2001DIA10009，the China NSF International Project No. 40121120827. |
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| 摘 要： | With the size-resolved aerosol mass and ion composition data obtained at Lin'an regional atmospheric pollution monitoring station in July 2003, the size distributions of aerosol mass and ionic components, and the correlations between major ion pairs were analyzed. The primary results indicate that in the period of in-situ measurement, the aerosols are mainly composed of fine particles. The mass of aerosols with size less than 2.1μm accounts for 66% of the total mass of all size ranges, in which about 50% of the mass is contributed by the particles with size less than 0.65μm. Similar to the size distributions of aerosol mass, the water-soluble ions are mainly concentrated in the size range of <0.65μm, accounting for about 77% of the sum of analyzed ions, and the ions within the range of <2.1μm reach 88%. The sulfate, ammonium, and potassium are the dominant ionic components in fine particles (particle size less than 2.1μm). Ion correlation analysis suggests that the sulfates in fine particles are mostly in the compounds of (NH4)2SO4, Na2SO4, and K2SO4, but for submicron particles the sulfates are mainly in the form of (NH4)2SO4.
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| 收稿时间： | 2006/7/26 0:00:00 |
Characteristics of Aerosol Ionic Compositions in Summer 2003 at Lin'an of Yangtze Delta Region |
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| YAN Peng,ZHANG Yangmei,YANG Dongzhen,TANG Jie,ZHOU Xiuji.Characteristics of Aerosol Ionic Compositions in Summer 2003 at Lin''''an of Yangtze Delta Region[J].Acta Meteorologica Sinica,2006,20(3):374-382. |
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| Authors: | YAN Peng ZHANG Yangmei YANG Dongzhen TANG Jie ZHOU Xiuji |
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| Institution: | Center for Atmospheric Watch and Services of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081
Department of Atmospheric Sciences, Peking University, Beijing 100871;Center for Atmospheric Watch and Services of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081
Key Laboratory for Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081;Center for Atmospheric Watch and Services of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081
Key Laboratory for Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081;Center for Atmospheric Watch and Services of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081
Key Laboratory for Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081;Center for Atmospheric Watch and Services of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081
Key Laboratory for Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081 |
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| Abstract: | |
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| Keywords: | aerosol ionic compositions size distribution |
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