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《Arid Meteorology》 2006-02
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Monitoring and Analysis on Atmospheric Aerosol at Surface Boundary Layer over Lanzhou City in March and April in 2002

LIU Zhi-guo~(1,2),XI Xiao-xia~2,WANG Xi-wen~1,TAO Jian-hong~1,YANG Jian-cai~1,YAN Hong-xia~3 (1.Lanzhou Center Meteorological Observatory,Lanzhou 730020,China;2.College of Atmosphere Sciences,Lanzhou University,Lanzhou 730000,China;3.The N0.14 Middle School in Lanzhou,Lanzhou 730000,China)  
Through monitoring and analysis on atmospheric aerosol at surface boundary layer over Lanzhou city in March and April in 2002,some results are given out as follows:(1) The quality concentration of TSP over Lanzhou city is increasing evidently while the dust weather is occurring,and the more strong the sand dust is,the more high the quality concentration of TSP is,and the air pollution is more severe;(2) The quality concentration of TSP corresponds to that of PM_(10) well over Lanzhou city under different weather conditions,and the more strong the dust is,the more high the quality concentration of TSP and PM_(10) is,but the increase or decrease proportion of TSP and PM_(10) quality concentration is different;(3) The quality concentration of the same level particles is different under different weather conditions,but the quality concentration distribution of the diversified level particles is same under the same weather condition;(4) The sample chroma of TSP corresponds to the air quality in some degree ,if the value of L~*,a~*and b~* is larger,then the sand dust in air is more and the air pollution is more severe,and the air pollution primarily comes from local black organic substance because the value of L~*,a~*and b~* is much less under normal weather condition.
【Fund】: 国家自然科学基金(40475011);; 甘肃省气象局课题“甘肃夏季沙尘暴预报方法研究”(200602)共同资助
【CateGory Index】: X831
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