Molecular Compositions and Sources of Organic Aerosols from Urban Atmosphere in the North China Plain during the Wintertime of 2017

doi:10.4209/aaqr.2019.08.0418

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Molecular Compositions and Sources of Organic Aerosols from Urban Atmosphere in the North China Plain during the Wintertime of 2017
	Liu, Xiaodi 1; Meng, Jingjing 1,2; Hou, Zhanfang 1,2; Yan, Li 3; Wang, Gehui 2,4; Yi, Yanan 1; Wei, Benjie 1; Fu, Mengxuan 1; Li, Jianjun 2; Cao, Junji 2
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2019-10-01
卷号	19 期号:10 页码:2267-2280
关键词	Organic compounds PM2.5 Fireworks burning Source identification Health risk
ISSN号	1680-8584
DOI	10.4209/aaqr.2019.08.0418
通讯作者	Meng, Jingjing(mengjingjing@lcu.edu.cn)
英文摘要	PM2.5 samples were collected from Liaocheng, a typical city in the North China Plain, during a winter haze episode around 2017 Chinese Spring Festival (Lunar New Year, LNY) to investigate the impact of firework on organic aerosols. A comparison of PM2.5 concentrations during different periods, with different air mass origins, and under different pollution situations was done. Organic compounds including normal alkanes (n-alkanes), polycylic aromatic hydrocarbons (PAHs), saccharides, and organic acids in PM2.5 aerosols were determined by GC/MS. Sources were analyzed by diagnostics ratios and principal component analysis/multiple linear regression (PCA/MLR) model. The results showed that fireworks burning has significant impacts on fine particle pollution. During the haze period, a sharp increase in n-alkanes, PAHs, saccharides, and fatty acids were observed, but the influence of fireworks burning on n-alkanes concentration is minor. The concentrations of carcinogenic PAHs during haze and LNY periods were more than three times higher than those in the clean period, indicating that PAHs were more carcinogenic during the two periods. In addition, the estimated ILCR for children and adults were both about three times higher than those in the clean periods, suggesting a moderate potential carcinogenic risk in Liaocheng. The higher concentration and the dominance of levoglucoan in the total saccharides suggested that the biomass burning is the predominance source of saccharides. Both the ratios of C-18(:1)/C-18(:0) and BaP/BeP were the highest during the haze period, indicating that aerosols in the haze period were more oxidized. According to the source precise molecular tracers and the PCA-MLR model, coal combustion, biomass burning, and vehicle emissions were the major sources of organic compounds in PM2.5 aerosols during the winter in Liaocheng, cooking activity and firework burning had impact on organic aerosols obviously during LNY. Our data provided first analysis of the molecular distributions and sources of organic aerosols during Chinese Spring Festival in Liaocheng and their potential effects on human health.
资助项目	National Science Foundation of China[41505112] ; National Science Foundation of China[41773117] ; Natural Science Foundation of Shandong Province[BS2015HZ002] ; National Natural Science Foundation of China for Distinguished Young Scholars[41325014] ; Open Funds of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1509] ; Open Funds of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1504]
WOS关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ; HEAVILY POLLUTED CITY ; SEASONAL-VARIATION ; SPRING FESTIVAL ; SIZE DISTRIBUTION ; CANCER-RISK ; CHEMICAL-COMPOSITION ; SOURCE APPORTIONMENT ; DICARBOXYLIC-ACIDS ; SECONDARY AEROSOL
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAIWAN ASSOC AEROSOL RES-TAAR
WOS记录号	WOS:000488291200010
资助机构	National Science Foundation of China ; Natural Science Foundation of Shandong Province ; National Natural Science Foundation of China for Distinguished Young Scholars ; Open Funds of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13295]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Meng, Jingjing
作者单位	1.Liaocheng Univ, Sch Environm & Planning, Liaocheng 252000, Shandong, Peoples R China 2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710075, Shaanxi, Peoples R China 3.Chinese Acad Environm Planing, Beijing 100012, Peoples R China 4.East China Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Informat Sci, Shanghai 200062, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiaodi,Meng, Jingjing,Hou, Zhanfang,et al. Molecular Compositions and Sources of Organic Aerosols from Urban Atmosphere in the North China Plain during the Wintertime of 2017[J]. AEROSOL AND AIR QUALITY RESEARCH,2019,19(10):2267-2280.
APA	Liu, Xiaodi.,Meng, Jingjing.,Hou, Zhanfang.,Yan, Li.,Wang, Gehui.,...&Cao, Junji.(2019).Molecular Compositions and Sources of Organic Aerosols from Urban Atmosphere in the North China Plain during the Wintertime of 2017.AEROSOL AND AIR QUALITY RESEARCH,19(10),2267-2280.
MLA	Liu, Xiaodi,et al."Molecular Compositions and Sources of Organic Aerosols from Urban Atmosphere in the North China Plain during the Wintertime of 2017".AEROSOL AND AIR QUALITY RESEARCH 19.10(2019):2267-2280.