Volume 8, No. 3, September 2008, Pages 339-347 PDF(153 KB)
Study of Elemental Mass Size Distributions of Aerosol in Lijiang, a Background Site in Southwest China
Ren-jian Zhang1, Zhen-xing Shen2, Han Zou1, Wei Wang3, Yuemei Han2, Juan Zhou2
1 Key Laboratory of Regional Climate-Environment Research for Temperate East Asia (REC-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
2 Department of Environmental Science and Engineering, Xi’an Jiaotong University, Xi’An 710049, China
3 Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Elemental mass size distributions of atmospheric aerosols over Mount Yulongxue, Lijiang, Yunnan Province, China were monitored by an 8-stage cascade sampler and analyzed using PIXE method. The results show that crustal elements such as Mg, Al, Ca, Si, K, and Fe are the main compositions of atmospheric aerosols over the Mount Yulongxue Region and account for more than 82% of a total of 20 elements determined. The concentration of soil dust in Lijiang is very low with a value of 3.22 μg/m3. Concentration of Pb, Se, and Br in atmospheric aerosol in Lijiang is much higher than that over Mount Qomolangma Region. High enrichment factors of S, As, Se, Br, and Pb in atmospheric aerosol in Lijiang were observed. These results indicate that the impact of human activity in Lijiang can’t be ignored.
Lijiang; Atmospheric aerosols; Elemental composition.