Characterization and sources of aerosol particles over the southeastern Tibetan Plateau during the Southeast Asia biomass-burning season

Engling, Guenter and Zhang, Yi-Nan and Chan, Chuen-Yu and Sang, Xue-Fang and Lin, Mang and Ho, Kin-Fai and Li, Yok-Sheung and Lin, Chuan-Yao and Lee, James J. (2011) Characterization and sources of aerosol particles over the southeastern Tibetan Plateau during the Southeast Asia biomass-burning season. Tellus B, 63 (1). pp. 117-128. ISSN 1600-0889

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under Licence Creative Commons Attribution.
Download (679kB) | Preview

Abstract

The Tibetan Plateau is one of the highest regions in the world, exerting profound influence on the large-scale atmospheric circulation of Asia and the global climate. Here we report ambient concentrations of black carbon (BC), aerosol mass (PM₂.₅ and PM₁₀) and associated carbonaceous species and water-soluble inorganic ions from a remote mountain site in the southeastern part of the Tibetan Plateau during spring, in order to characterize the major sources contributing to the ambient aerosol in the background atmosphere of Southeast Asia. Significant build-up of aerosol and BC concentrations was observed during a dry period, accompanied by the occurrence of fires and transport of pollution from the nearby regions of Southeast Asia and the northern part of the Indian Peninsula. The concentrations of BC, PM₂.₅ and PM₁₀ mass reached maximum hourly values of 1470 ng m⁻³, 107 and 117 μg m⁻³, respectively. Organic carbon (OC), elemental carbon (EC) and sulfate were the predominant aerosol components. OC showed strong correlations with EC (R² = 0.93 for PM₂.₅ and 0.74 for PM₁₀) and non-sea-salt potassium, especially in fine aerosol (R² = 0.95). In addition, the relative change rates of K⁺ against OC reached characteristically high values, highlighting the important contributions of biomass-burning smoke.

Item Type: Article
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > Department of Chemical and Environmental Engineering
Identification Number: 10.1111/j.1600-0889.2010.00512.x
Depositing User: CHEN, Jiaorong
Date Deposited: 28 Nov 2017 13:52
Last Modified: 28 Nov 2017 14:03
URI: http://eprints.nottingham.ac.uk/id/eprint/48384

Actions (Archive Staff Only)

Edit View Edit View