| Soluble species in aerosols collected on the route of the Second Chinese National Arctic Research Expedition |
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| 作者姓名： | 徐建中 孙俊英 任贾文 秦大河 |
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| 作者单位： | Joint Key Laboratory of Cryosphere and Environment Cold and Arid Regions Environmental and Engineering Research Institute，Chinese Academy of Sciences，Lanzhou 730000，China，Joint Key Laboratory of Cryosphere and Environment，Cold and Arid Regions Environmental and Engineering Research Institute，Chinese Academy of Sciences，Lanzhou 730000，China Key Laboratory for Atmospheric Chemistry，Centre for Atmosphere Watch and Services，Chinese Academy of Meteorological Sciences，Beijing 100081，China，Joint Key Laboratory of Cryosphere and Environment，Cold and Arid Regions Environmental and Engineering Research Institute，Chinese Academy of Sciences，Lanzhou 730000，China，Key Laboratory for Atmospheric Chemistry，Centre for Atmosphere Watch and Services，Chinese Academy of Meteorological Sciences，Beijing 100081，China |
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| 基金项目： | Acknowledgments The authors would like to express gratitude to Wang Xiaoxiang for assistance with chemical analyses and to Lu Changgui and Bian Linggen for their help on the expedition. This work was supported by the National Natural Foundation of China （ Grants No. 40071025） and the Second Chinese National Arctic Research Expedition. |
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| 摘 要： | Aerosol samples are collected on the route of the Second Chinese NationalArctic Research Expedition from July 15 to September 28,2003.The concentration ofwater soluble ions(Na~+,NH_4~+,Ca~(2+),Cl~-,MSA,SO_4~(2-)and so on)are ana-lyzed.By correlation analysis,the ions can be divided into three groups:(1)Na~+,Mg~(2+),K~+,Ca~(2+),Cl~-,SO_4~(2-),mainly from sea salt;(2)NH_4~+,NO_3~-,markedlyfrom coastal regions of the continents;(3)Acetate,MSA,C_2O_4~(2-),from othersources.Marine aerosols are the dominant origin,Cl~- and Na~+ are the most domi-nant anion and cation,respectively and these two ions(Na~++Cl~-)account for 55.6% of the total aerosol loading.The mean equivalence ratio of NH_4~+/SO_4~(2-)is 0.45,we suggest that ammonium and sulfate exist mainly as NH_4HSO_4.The concentrationof NO_3~- shows three different patterns on the route of expedition:Japan Sea with me-dian value of 15.2 neq·m~(-3);Sea of Okhostk and Bering Sea of 1.8 neq·m~(-3)andArctic Ocean of 0.4 neq·m~(-3).Bering Sea is a high MSA area.Through the com-parison of the concentration of main water soluble ions between the First and SecondChinese National Arctic Research Expedition,the variation matches each other.
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| 关 键 词： | 气溶胶 北极 可溶解性 理化性能 空气质量 |
| 收稿时间： | 2005-03-10 |
Soluble species in aerosols collected on the route of the Second Chinese National Arctic Research Expedition |
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| Xu Jianzhong Sun Junying Ren Jiawen Qin Dahe Joint Key Laboratory of Cryosphere and Environment,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou ,China
Key Laboratory for Atmospheric Chemistry,Centre for Atmosphere Watch and Services,Chinese Academy of Meteorological Sciences,Beijing ,China.Soluble species in aerosols collected on the route of the Second Chinese National Arctic Research Expedition[J].Chinese Journal of Polar Science,2005,16(1):1-12. |
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| Authors: | Xu Jianzhong Sun Junying Ren Jiawen Qin Dahe Joint Key Laboratory of Cryosphere and Environment Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou China
Key Laboratory for Atmospheric Chemistry Centre for Atmosphere Watch and Services Chinese Academy of Meteorological Sciences Beijing China |
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| Institution: | Xu Jianzhong Sun Junying Ren Jiawen Qin Dahe 1 Joint Key Laboratory of Cryosphere and Environment,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China
2 Key Laboratory for Atmospheric Chemistry,Centre for Atmosphere Watch and Services,Chinese Academy of Meteorological Sciences,Beijing 100081,China |
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| Abstract: | Aerosol samples are collected on the route of the Second Chinese National Arctic Research Expedition from July 15 to September 28, 2003. The concentration of water soluble ions (Na+, NH4+, Ca2+, CI-, MSA , SO42- and so on) are analyzed. By correlation analysis, the ions can be divided into three groups: ( 1 ) Na + ,Mg2+ , K + , Ca2 + , Cl- , SO42 - , mainly from sea salt; (2) NH4+ , NO3- , markedly from coastal regions of the continents ; (3) Acetate, MSA, C2042-, from other sources. Marine aerosols are the dominant origin, Cl- and Na + are the most dominant anion and cation, respectively and these two ions ( Na + + Cl - ) account for 55.6% of the total aerosol loading. The mean equivalence ratio of NH4+/SO42 - is 0.45,we suggest that ammonium and sulfate exist mainly as NH4HSO4. The concentration of NO3- shows three different patterns on the route of expedition: Japan Sea with meparison of the concentration of main water soluble ions between the First and Second Chinese National Arctic Research Expedition, the variation matches each other. |
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| Keywords: | Marine aerosol Arctic Soluble species MSA |
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