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Stable sulfur isotope ratios and chemical compositions of fine aerosols (PM2.5) in Beijing, China
Wei, Lianfang1,4; Yue, Siyao1,4; Zhao, Wanyu1,4; Yang, Wenyi1; Zhang, Yingjie1; Ren, Lujie2; Han, Xiaokun2,3; Guo, Qingjun3,4; Sun, Yele1,4; Wang, Zifa1,4; Fu, Pingqing1,2,4
2018-08-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume633Pages:1156-1164
Corresponding AuthorFu, Pingqing(fupingqing@tju.edu.cn)
AbstractPervasive particulate pollution has been observed over large areas of the North China Plain. The high level of sulfate, a major component in fine particles, is pronounced during heavy pollution periods. Being different from source apportionments by atmospheric chemistry-transport model and receptor modeling methods, here we utilize sulfur isotopes to discern the potential emission sources. Sixty-five daily PM2.5 samples were collected at an urban site in Beijing between September 2013 and July 2014. Inorganic ions, organic/elemental carbon and stable sulfur isotopes of sulfate were analyzed. The "fingerprint" characteristics of stable sulfur isotopic composition, together with trajectory clustering modeled by HYSPLIT-4 (HYbrid Single-Particle Lagrangian Integrated Trajectory) and FLEXPART ("FLEXible PARTicle dispersion model"), was employed to identify potential aerosol sources in Beijing. Results exhibited a distinctive seasonality with sulfate, nitrate, ammonium, organic matter, and element carbon being the dominant species of PM2.5. Elevated concentrations of chloride with high organic matter were found in autumn and winter as a result of enhanced fossil fuel (mainly coal) combustion. The delta S-34 values of the Beijing aerosols ranged from 2.8% to 9.9% with an average of 6.0 +/- 1.8%, further indicating that the major sulfur source was direct coal burning emission. Owing to the changing patterns between oxidation pathways of S(IV) in different seasons, delta S-34 values varied with a winter maximum (8.2 +/- 1.1%) and a summer minimum (4.9 +/- 1.9%). The results of trajectory clustering and FLEXPART demonstrated that higher concentrations of sulfate with lower sulfur isotope ratios (4.6 +/- 0.8%) were associated with air masses from the south or east, whereas lower sulfate concentrations with heavier sulfur isotope ratios (6.7 +/- 1.6%) were observed when the air masses were mainly from the north or northwest. These results suggested that the fine aerosol pollution in Beijing, especially sulfate pollution, was mainly due to coal combustion sources from regional and local regions. (C) 2018 Elsevier B.V. All rights reserved.
KeywordPM2.5 Sulfate Sulfur isotope Seasonal variation Sources
DOI10.1016/j.scitotenv.2018.03.153
WOS KeywordHETEROGENEOUS OXIDATION ; AQUEOUS-SOLUTIONS ; HAZE EVENTS ; SULFATE ; SO2 ; FRACTIONATION ; EXCHANGE ; DIOXIDE ; APPORTIONMENT ; PRECIPITATION
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC0212700] ; National Natural Science Foundation of China[41475117] ; National Natural Science Foundation of China[41571130024] ; National Natural Science Foundation of China[91543205] ; National Science Fund for Distinguished Young Scholars[41625014] ; National Science Fund for Distinguished Young Scholars[41625006]
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000432475300111
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54795
Collection中国科学院地理科学与资源研究所
Corresponding AuthorFu, Pingqing
Affiliation1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China
2.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China
3.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wei, Lianfang,Yue, Siyao,Zhao, Wanyu,et al. Stable sulfur isotope ratios and chemical compositions of fine aerosols (PM2.5) in Beijing, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,633:1156-1164.
APA Wei, Lianfang.,Yue, Siyao.,Zhao, Wanyu.,Yang, Wenyi.,Zhang, Yingjie.,...&Fu, Pingqing.(2018).Stable sulfur isotope ratios and chemical compositions of fine aerosols (PM2.5) in Beijing, China.SCIENCE OF THE TOTAL ENVIRONMENT,633,1156-1164.
MLA Wei, Lianfang,et al."Stable sulfur isotope ratios and chemical compositions of fine aerosols (PM2.5) in Beijing, China".SCIENCE OF THE TOTAL ENVIRONMENT 633(2018):1156-1164.
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