Atmospheric Pb levels over Mount Qomolangma region--颗粒学报PARTICUOLOGY

Zhang, R., Shen, Z., & Zou, H. (2009). Atmospheric Pb levels over Mount Qomolangma region. Particuology, 7(3), 211–214. https://doi.org/10.1016/j.partic.2008.10.002

Atmospheric Pb levels over Mount Qomolangma region

Renjian Zhang ^{a b}, Zhenxing Shen ^b *, Han Zou ^a

a Key Laboratory of Regional Climate-Environment Research for Temperate East Asia (REC-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
b State Key Laboratory of Multiphase Flow in Power Engineering, Department of Environmental Science and Engineering, Xi’an Jiaotong University, Xi’An 710049, China

10.1016/j.partic.2008.10.002

Volume 7, Issue 3, June 2009, Pages 211-214

Received 13 March 2008, Accepted 8 October 2008, Available online 13 January 2009.

E-mail: zxshen@mail.xjtu.edu.cn

Highlights

Abstract

The Pb spectral concentration of atmospheric aerosol samples observed over Mount Qomolangma site (28°11′33″N, 86°49′59″E, 4950 m ASL) in 2002 was 13.3 ng/m³, about 4.5 times higher than that in 2000. The Pb spectral distribution showed three peaks, located at <0.25 μm, 0.5–1 μm, and 4–8 μm in diameters. The peaks for <0.25 μm and 0.25–0.5 μm may be due to long-distant transport, while that for 4–8 μm probably results from local floating dust. The atmospheric Pb concentration over Mount Qomolangma was lower than that of South Pole, most of the urban areas, and desert areas in the northern hemisphere. The enrichment factors for fine and coarse particles of atmospheric Pb in 2002 over Mount Qomolangma were 413.2 and 62.6, respectively, in support of the slight atmospheric pollution with Pb over the Qinghai-Tibetan Plateau.

Graphical abstract

Keywords

Pb; Mount Qomolangma; Enrichment factor

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