High-Resolution Observation of Chemical Components of Atmospheric Aerosol in Autumn of Beijing and Its Source Identification
北京秋季气溶胶化学成分的高分辨率观测及来源分析

Aerosol samples were collected continuously by a step sampler with a 2-hour time step during 30 September-6 October 2001 at meteorological tower at the height of 8 m in Beijing.Chemical composition of aerosol samples was analyzed by using PIXE method.The results showed that the diurnal variations of element concentrations were remarkable,and higher pollutant concentrations often occurred in the morning and midnight.Enrichment factors of S,Pb,Cl,Zn in atmospheric aerosol in Beijing which had a close relation...