气候变化领域集成服务门户(CCPortal): Characteristics and source apportionment of PM2.5-bound saccharides and carboxylic acids in Central Shanghai, China

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DOI	10.1016/j.atmosres.2019.104817
	Characteristics and source apportionment of PM2.5-bound saccharides and carboxylic acids in Central Shanghai, China
	Ren G.; Yan X.; Ma Y.; Qiao L.; Chen Z.; Xin Y.; Zhou M.; Shi Y.; Zheng K.; Zhu S.; Huang C.; Li L.
发表日期	2020
ISSN	0169-8095
卷号	237
英文摘要	PM2.5-bound of a group of thirty-six polar organic compounds including seventeen saccharides and nineteen carboxylic acids and PM2.5 were analyzed for the abundance and potential sources at three sites in central Shanghai, China from September 2015 to August 2016. The annual average concentrations of the total saccharides in the PM2.5 was 184.9 ng/m3 with concentrations ranging from 15.3–873.4 ng/m3 for all samples. Principal component analysis coupled with multiple linear regression (PCA-MLR) revealed that 53% of saccharides in Shanghai were derived from biomass combustion emission, 25% from fungal spore emission and 22% from plant emission. The annual average concentration of total acids concentration was 122.5 ng/m3. Pollutants showed seasonal variations with significant higher concentrations of the dicarboxylic acid, anhydrosugar and sugar alcohol in winter and primary sugar such as fructose and sucrose in spring and summer. Lower ratios of adipic acid (C6)/azelaic acid (C9) and phthalic acid (Ph)/C9 indicated that aerosols in Shanghai are more influenced by biogenic sources. Three PCA factors explained 84% of the variance of the studied carboxylic acids data. The PCA results showed that secondary aerosols(both from anthropogenic and biogenic sources)and biomass burning emissions were the most important sources of carboxylic acids in Shanghai. © 2019 Elsevier B.V.
英文关键词	Carboxylic acids; PCA; PM2.5; Saccharides; Seasonal variation
学科领域	Aerosols; Carboxylic acids; Combustion; Linear regression; Sugars; Annual average concentration; Biomass burning emissions; Multiple linear regressions; PM2.5; Polar organic compounds; Saccharides; Seasonal variation; Source apportionment; Principal component analysis; aerosol; biomass burning; carboxylic acid; concentration (composition); particulate matter; principal component analysis; seasonal variation; source apportionment; China; Shanghai
语种	英语
scopus关键词	Aerosols; Carboxylic acids; Combustion; Linear regression; Sugars; Annual average concentration; Biomass burning emissions; Multiple linear regressions; PM2.5; Polar organic compounds; Saccharides; Seasonal variation; Source apportionment; Principal component analysis; aerosol; biomass burning; carboxylic acid; concentration (composition); particulate matter; principal component analysis; seasonal variation; source apportionment; China; Shanghai
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120460
作者单位	Institute of Environmental pollution and health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China; Shanghai Academy of Environmental Sciences, Shanghai, 200233, China; State of Environmental Protection Key Laboratory of the Formation and Prevention of Urban Air Complex, Shanghai, 200233, China; Shanghai Huangpu Environmental Monitoring Center, Shanghai, 200021, China
推荐引用方式 GB/T 7714	Ren G.,Yan X.,Ma Y.,et al. Characteristics and source apportionment of PM2.5-bound saccharides and carboxylic acids in Central Shanghai, China[J],2020,237.
APA	Ren G..,Yan X..,Ma Y..,Qiao L..,Chen Z..,...&Li L..(2020).Characteristics and source apportionment of PM2.5-bound saccharides and carboxylic acids in Central Shanghai, China.Atmospheric Research,237.
MLA	Ren G.,et al."Characteristics and source apportionment of PM2.5-bound saccharides and carboxylic acids in Central Shanghai, China".Atmospheric Research 237(2020).