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山西医学院杨文敏等为了研究大气污染中颗粒物的组分,运用扫描电镜和X射线能谱分析技术,分析了太原市6个监测点776个颗粒物表面15种元素分布及形态特征。结果显示,Si、Al元素含量丰富,平均为49.4％和25％,表示Si和Al是大气颗粒物的主体成分;Si、Al、K等亲石元素在颗粒物表面的含量随着粒径减小,相对减少。V、Cr、Mn、
In order to study the composition of particulate matter in air pollution, Yang Wenmin et al. Of Shanxi Medical College analyzed the distribution and morphological characteristics of 15 elements on the surface of 776 particles in 6 monitoring stations in Taiyuan City by using scanning electron microscopy and X-ray energy spectrum analysis. The results show that Si and Al are rich in elements with an average of 49.4% and 25%, indicating that Si and Al are the main components of atmospheric particles. The content of lithophile elements such as Si, Al and K on the surface of particles decreases with the particle size, Relatively reduced. V, Cr, Mn,