泰山顶大气气溶胶中金属元素的特征分析  

Characterization of Metallic Elements of Atmospheric Aerosol at the Summit of Mount Tai

作　　者：杨勇杰[1] 王跃思[1] 徐宏辉[1] 崔雅琴[2] 温天雪[1] 

机构地区：[1]中国科学院大气物理研究所,北京100029 [2]山东省气象信息中心,山东济南250031

出　　处：《分析测试学报》2008年第4期390-395,共6页Journal of Instrumental Analysis

基　　金：国家杰出青年基金资助项目(40525016);国家重点基础研究发展计划(973计划)资助项目(2007CB407303);国家高技术研究发展计划(863计划)资助项目(2006AA06A301)

摘　　要：采用Andersen分级撞击式采样器对泰山日观峰进行了大气气溶胶分级采样，并利用ICP—MS对其中典型金属元素浓度进行了分析。结果表明：Mg、Al、Fe、Ca、Mn、Ba在4．7～5．8μm的粒径范围出现浓度峰值，Co、Ni、Mo、Na、Cu在4．7～5．8μm和0．43—0，65μm的粒径范围出现双峰，Zn、Pb、Tl在4．7—5．8μm和0．43～1．1μm的粒径范围出现双峰。来自北方的干燥气团易造成Mg、Al、Mn、Fe等地壳元素浓度的升高，而来自南方的气团易造成Zn、Pb等污染元素浓度的升高。Aerosol samples were collected at the summit of Mount Tai using the large flow, nine grades Anderson sampler. The concentrations of the typical metallic elements in aerosols were determined with ICP- MS. From the size distribution curves, it could be seen that Mg, Al, Fe, Ca, Mn, Ba exibited concentration peaks at the particle size interval of 4.7 -5.8 μm, whereas Co, Ni, Mo, Na, Cu exhibited double peaks at the intervals of 4. 7 - 5.8 μm and 0.43 - 0. 65 μm, respectively ; Zn, Pb, Tl exhibited double peaks at the intervals of 4.7 - 5.8 μm and 0. 43 - 1.1 μm, re- spectively. The results also showed that the dry air mass coming from the north builded up the concentrations of crustal elements, whereas the air mass coming from the south builded up the concentrations of Zn and Pb pollutants.

关 键 词：气溶胶 金属元素 粒径分布 电感耦合等离子体质谱 

分 类 号：Q657.63[生物学—生物物理学] O648.18[理学—物理化学]