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Saccharides in summer and winter PM2.5 over Xi'an, Northwestern China: Sources, and yearly variations of biomass burning contribution to PM2.5
Wang, X (Wang, Xin)[ 1,2,3 ]; Shen, ZX (Shen, Zhenxing)[ 1,2 ]; Liu, FB (Liu, Fobang)[ 3 ]; Lu, D (Lu, Di)[ 1 ]; Tao, J (Tao, Jun)[ 4 ]; Lei, YL (Lei, Yali)[ 1 ]; Zhang, Q (Zhang, Qian)[ 1 ]; Zeng, YL (Zeng, Yaling)[ 1 ]; Xu, HM (Xu, Hongmei)[ 1 ]; Wu, YF (Wu, Yunfei)[ 5 ]; Zhang, RJ (Zhang, Renjian)[ 5 ]; Cao, JJ (Cao, Junji)[ 2 ]
2018-10-01
发表期刊Atmospheric Research
卷号214页码:410-417
文章类型期刊论文
摘要

Saccharides are important constituents in atmospheric aerosols but studies in northwestern China are still very limited. Here, we have measured anhydrosugars (levoglucosan, mannosan and galactosan), primary sugars (glucose, fructose, sucrose and trehalose), and sugar alcohols (arabitol, mannitol, sorbitol and inositol) in ambient PM2.5 samples during summer and winter in Xi'an city, northwestern China. The abundance of total saccharides showed no clear seasonal variation, but apparent distinctions on the levels of the three categories and individual saccharide compounds were found. Primary sugars and particularly sucrose were dominant in summer. In contrast, levoglucosan was the predominant species in winter, contributing 60% of total saccharides. Source apportionment by positive matrix factorization revealed that airborne pollen was a major source of PM2.5 associated-saccharides in summer, accounting for 35% of total saccharides; while biomass burning activities contributed to 60% of the winter saccharides. Furthermore, an increasing trend of biomass/biofuel burning contribution to winter PM2.5 was observed in comparison with previous studies in Xi'an, suggesting a change in emission sources may be underway in northwestern China.

关键词Saccharides Pm2.5 Northwestern China Levoglucosan Biomass Burning
DOI10.1016/j.atmosres.2018.08.024
收录类别SCI
语种英语
引用统计
被引频次:41[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9565
专题粉尘与环境研究室
通讯作者Shen, ZX (Shen, Zhenxing)[ 1,2 ]; Liu, FB (Liu, Fobang)[ 3 ]
作者单位1.Department of Environmental Sciences and Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
2.State Key laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710049, China;
3.Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany;
4.South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou, China;
5.Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,China
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Wang, X ,Shen, ZX ,Liu, FB ,et al. Saccharides in summer and winter PM2.5 over Xi'an, Northwestern China: Sources, and yearly variations of biomass burning contribution to PM2.5[J]. Atmospheric Research,2018,214:410-417.
APA Wang, X .,Shen, ZX .,Liu, FB .,Lu, D .,Tao, J .,...&Cao, JJ .(2018).Saccharides in summer and winter PM2.5 over Xi'an, Northwestern China: Sources, and yearly variations of biomass burning contribution to PM2.5.Atmospheric Research,214,410-417.
MLA Wang, X ,et al."Saccharides in summer and winter PM2.5 over Xi'an, Northwestern China: Sources, and yearly variations of biomass burning contribution to PM2.5".Atmospheric Research 214(2018):410-417.
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