OPEN ACCESS

Articles online

Individual Particle Analysis of Atmospheric Aerosols at Nam Co, Tibetan Plateau

Category: Articles

Volume: 9 | Issue: 3 | Pages: 323-331
DOI: 10.4209/aaqr.2008.12.0064
PDF | RIS | BibTeX

Zhiyuan Cong1, Shichang Kang 1,2, Shuping Dong3, Yulan Zhang1

  • 1 Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, CAS, Beijing 100085, China
  • 2 State Key Laboratory of Cryospheric Science, Chinese Academy of Sciences, Lanzhou 730000, China
  • 3 National Center for Environmental Analysis and Measurements, Beijing 100029, China

Abstract

Twelve filter samples were sampled monthly during a continuous 1-year campaign at a remote site, Nam Co in central Tibetan Plateau. The total aerosol concentrations ranged from 0.48 μg/m3 to 36.11 μg/m3 with the annual average of 6.74 μg/m3, reflecting a typical background level. The composition and morphology of atmospheric aerosols with size ranging from 0.5 to 10 μm were investigated using a scanning electron microscope coupled with energy dispersive X-ray analysis. Then aerosol particles were classified into 7 groups: soot, tar ball, aluminosilicates/quartz, calcium sulfate, Ca/Mg carbonate, Fe/Ti oxide, and biological particle. Aerosol optical properties from the sun photometer and the results obtained by SEM-EDX could support and verify each other, providing complementary information on aerosol characteristics at Nam Co. Two distinct types of air masses arriving at Nam Co correspond to different aerosol constituent, showing that the summer monsoon circulation may bring considerable pollution from South Asia, while the westerly flow dominated in winter is relative clean.

Keywords

Aerosols SEM-EDX Nam Co Tibetan Plateau


Related Article

Micro-Morphological Characteristics and Size Distribution of PM2.5 in the Kuitun-Dushanzi Region of Xinjiang, China

Dilinuer Talifu, Ayikezi Wuji, Yalkunjan Tursun, Hong Kang, Ying Hu, Yuhong Guo, Longyi Shao
Volume: 15 | Issue: 6 | Pages: 2258-2269
DOI: 10.4209/aaqr.2015.01.0053
PDF

Critical Emissions from the Largest On-Road Transport Network in South Asia

Saroj Kumar Sahu , Gufran Beig, Neha Parkhi
Volume: 14 | Issue: 1 | Pages: 135-144
DOI: 10.4209/aaqr.2013.04.0137
PDF

Ambient Air Quality during Diwali Festival over Kolkata – A Mega-City in India

A. Chatterjee , C. Sarkar, A. Adak, U. Mukherjee, S.K. Ghosh, S. Raha
Volume: 13 | Issue: 3 | Pages: 1133-1144
DOI: 10.4209/aaqr.2012.03.0062
PDF

Exploring the Variation between EC and BC in a Variety of Locations

Gbenga Oladoyin Salako, Philip K. Hopke , David D. Cohen, Bilkis A. Begum, Swapan K. Biswas, Gauri Girish Pandit, Yong-Sam Chung, Shamsiah Abd Rahman, Mohd Suhaimi Hamzah, Perry Davy, Andreas Markwitz, Dagva Shagjjamba, Sereeter Lodoysamba, Wanna Wimolwattanapun, Supamatthree Bunprapob
Volume: 12 | Issue: 1 | Pages: 1-7
DOI: 10.4209/aaqr.2011.09.0150
PDF
;