Using Neutron Activation Analysis Of Beijing Liangxiang Air Pollution,

This work cooperated with environment safeguard bureau of Fangshan district of Beijing. Two sampling sites were set at Fu Qian Guang Chang and Fu Shu ZhongXue.The Gent stacked filter unit(SFU) was used to collect fine(diameter<2.5um) and coarse(diameter<10um) airborne particulate matter(APM). About 100 samples which was collected during Mar 2005 to Sep 2005 were analyzed by the use of Instrumental Neutron Activation Analysis and hybrid K0& relative software developed by our lab.More than 40 elements were determined. At the same time, The data of APM in 2004 were also disposed. Through the analysis, several results were gotten. The average volume concentration of coarse and fine particulate matter in Fu Qian Guang Chang was 80μg/m3 and 42.3μg/m3, another sampling site was 108.1μg/m3 and 47.1μg/m3. The pollutant character of sampling sites was studied and characteristic of particulate matter was described in different seasons, then got the variety rules of pollutant source along with the change of seasons. Meanwhile, the airborne pollutant variety rules of Liangxiang of Beijing during the two years indicated the average volume concentration of APM in Fu Qian Guang Chang presented descending rules and Fu Shu Zhong Xue reverse. This showed the urgency of environment treatment. Additional, We combined the special weather to explain Ag element's abnormal origin and compared its variety rules in the two years.Through the system analysis, it announced APM's character, elements enrichment degree and style of pollutant source of the two sampling sites in Liangxiang of Beijng. The statistical methods such as Enrichment Factor(EF), elements correlation and time series analysis were adopted to study the pollutant source of APM. Then it showed the major APM source of Liangxiang came from the earth's crust including dust, soil etc. and the other came from metallurgy, fuel combustion, garbage burning and so on. The two sampling sites' pollutant style basal similarity and only the enrichment degree was different.