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Airborne particulate organic markers at the summit (2060 m,a.s.l.) of Mt. Hua in central China during winter: Implications for biofuel and coal combustion
Li, JJ (Li, Jianjun)[1,2]; Wang, GH (Wang, Gehui)[1,3]; Zhou, BH (Zhou, Bianhong)[4]; Cheng, CL (Cheng, Chunlei)[1]; Cao, JJ (Cao, Junji)[1,3]; Shen, ZX (Shen, Zhenxing)[1,2]; An, ZS (An, Zhisheng)[1]
2012-03-30
Source PublicationAtmospheric Research
Volume106Pages:108-119
Subtype期刊论文
Abstract

Sugars, n-alkanes and PAHs in PM10 and size-segregated samples collected from the summit (2060 m, altitude) of Mt. Hua in Guanzhong Plain, central China during the winter of 2009 were characterized using a GC/MS technique. Concentrations of sugars, n-alkanes and PAHs in PM10 are 107±52, 121±63, 7.3±3.4 ng m−3, respectively. Levoglucosan and fossil fuel derived n-alkanes are more abundant in the air masses transported from southern China than in those from northern China with no spatial difference found for PAHs, suggesting that emissions from biomass burning and vehicle exhausts are more significant in southern part of the country. Dehydrated sugars, fossil fuel derived n-alkanes and PAHs presented a unimode size distribution, peaking at the size of 0.7–1.1 μm, whereas non-dehydrated sugars and plant wax derived n-alkanes showed a bimodal pattern, peaking at 0.7–2.1 and 5.8–9.0 μm, respectively. Principal component analysis showed that biofuel combustion plus plant emission is the most important source in Mt. Hua, being different from the cases in Chinese urban areas where fossil fuel combustion is the major source. By comparison with previous mountain and lowland observations and aircraft measurements we found that wintertime PAHs in China are still characterized by coal burning emissions especially in the inland regions, although in the country increasing rate of SO2 emission from coal combustion has decreased and emissions of vehicle exhaust has sharply increased.

KeywordLevoglucosan N-alkanes And Pahs Molecular Composition And Size Distribution High Mountain Free Troposphere Source Identification
DOI10.1016/j.atmosres.2011.11.012
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10097
Collection粉尘与环境研究室
Corresponding AuthorWang, GH (Wang, Gehui)[1,3]
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
2.Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
3.School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
4.Department of Geographical Science and Environment Engineering, Baoji University of Art and Science, Baoji 721013, China
Recommended Citation
GB/T 7714
Li, JJ ,Wang, GH ,Zhou, BH ,et al. Airborne particulate organic markers at the summit (2060 m,a.s.l.) of Mt. Hua in central China during winter: Implications for biofuel and coal combustion[J]. Atmospheric Research,2012,106:108-119.
APA Li, JJ .,Wang, GH .,Zhou, BH .,Cheng, CL .,Cao, JJ .,...&An, ZS .(2012).Airborne particulate organic markers at the summit (2060 m,a.s.l.) of Mt. Hua in central China during winter: Implications for biofuel and coal combustion.Atmospheric Research,106,108-119.
MLA Li, JJ ,et al."Airborne particulate organic markers at the summit (2060 m,a.s.l.) of Mt. Hua in central China during winter: Implications for biofuel and coal combustion".Atmospheric Research 106(2012):108-119.
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