Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33908
Title: Chemical characteristics of carbonaceous aerosols during dust storms over Xi'an in China
Authors: Li, X
Cao, J
Chow, J
Han, Y
Lee, S 
Watson, J
Keywords: Carbonate carbon
Dust storm
Elemental carbon
Organiccarbon
Issue Date: 2008
Publisher: Science China Press
Source: Advances in atmospheric sciences, 2008, v. 25, no. 5, p. 847-855 How to cite?
Journal: Advances in Atmospheric Sciences 
Abstract: Characterization of carbonaceous aerosols including CC (carbonate carbon), OC (organic carbon), and EC (elemental carbon) were investigated at Xi'an, China, near Asian dust source regions in spring 2002. OC varied between 8.2 and 63.7 ?gg m -3, while EC ranged between 2.4 and 17.2 ?g m -3 during the observation period. OC variations followed a similar pattern to EC and the correlation coefficient between OC and EC is 0.89 (n = 31). The average percentage of total carbon (TC, sum of CC, OC, and EC) in PM 2.5 during dust storm (DS) events was 13.6%, which is lower than that during non-dust storm (NDS) periods (22.7%). CC, OC, and EC accounted for 12.9%, 70.7%, and 16.4% of TC during DS events, respectively. The average ratio of OC/EC was 5.0 in DS events and 3.3 in NDS periods. The OC-EC correlation (R
URI: http://hdl.handle.net/10397/33908
ISSN: 0256-1530
DOI: 10.1007/s00376-008-0847-1
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