IEECAS OpenIR  > 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, Xiaodi1; Meng, Jingjing1,2; Hou, Zhanfang1,2; Yan, Li3; Wang, Gehui2,4; Yi, Yanan1; Wei, Benjie1; Fu, Mengxuan1; Li, Jianjun2; Cao, Junji2
Corresponding AuthorMeng, Jingjing(mengjingjing@lcu.edu.cn)
2019-10-01
Source PublicationAEROSOL AND AIR QUALITY RESEARCH
ISSN1680-8584
Volume19Issue:10Pages:2267-2280
AbstractPM2.5 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.
KeywordOrganic compounds PM2.5 Fireworks burning Source identification Health risk
DOI10.4209/aaqr.2019.08.0418
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; HEAVILY POLLUTED CITY ; SEASONAL-VARIATION ; SPRING FESTIVAL ; SIZE DISTRIBUTION ; CANCER-RISK ; CHEMICAL-COMPOSITION ; SOURCE APPORTIONMENT ; DICARBOXYLIC-ACIDS ; SECONDARY AEROSOL
Indexed BySCI ; SCI
Language英语
Funding ProjectNational 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 Research AreaEnvironmental Sciences & Ecology
Funding OrganizationNational 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
WOS SubjectEnvironmental Sciences
WOS IDWOS:000488291200010
PublisherTAIWAN ASSOC AEROSOL RES-TAAR
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/13296
Collection粉尘与环境研究室
Corresponding AuthorMeng, Jingjing
Affiliation1.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
Recommended Citation
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.
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