期刊
ENVIRONMENTAL POLLUTION
卷 158, 期 11, 页码 3392-3400出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2010.07.036
关键词
Carbonaceous aerosol; Elemental carbon; Southeast Asia; Potential source contribution function (PSCF); Open biomass burning
资金
- Chinese Academy of Sciences [KZCX2-YW-GJ02]
- Natural Science Foundation of China (NSFC) [40739001, 40518002]
- State Key Laboratory of Organic Geochemistry [SKLOG2008a04]
- Research Grants Council (RGC) of the Hong Kong SAR Government [PolyU 5147/03E, N_PolyU535/05]
Carbonaceous aerosols were studied at three background sites in south and southwest China Hok Tsui in Hong Kong had the highest concentrations of carbonaceous aerosols (OC = 8.7 +/- 4 5 mu g/m(3), EC = 2.5 = 1.9 mu g/m(3)) among the three sites, and Jianfeng Mountains in Hainan Island (OC = 5.8 +/- 2.6 mu g/m(3), EC = 0.8 +/- 0.4 mu g/m(3)) and Tengchong mountain over the east edge of the Tibetan Plateau (OC = 4 8 +/- 4 0 mu g/m(3), EC = 0 5 +/- 0 4 mu g/m(3)) showed similar concentration levels Distinct seasonal patterns with higher concentrations during the winter, and lower concentrations during the summertime were observed, which may be caused by the changes of the regional emissions, and monsoon effects. The industrial and vehicular emissions in East, Southeast and South China, and the regional open biomass burning in the Indo-Myanmar region of Asia were probably the two major potential sources for carbonaceous matters in this region (C) 2010 Elsevier Ltd. All rights reserved
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