Multiple Sulfur Isotope Constraints on Sources and Formation Processes of Sulfate in Beijing PM2.5 Aerosol

doi:10.1021/acs.est.7b00280

	Multiple Sulfur Isotope Constraints on Sources and Formation Processes of Sulfate in Beijing PM2.5 Aerosol
	Han, Xiaokun 1; Guo, Qingjun 1,2; Strauss, Harald 3; Liu, Congqiang 4; Hu, Jian 4; Guo, Zhaobing 5; Wei, Rongfei 1; Peters, Marc 1; Tian, Liyan 1; Kong, Jing 1
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2017-07-18
卷号	51 期号:14 页码:7794-7803
ISSN号	0013-936X
DOI	10.1021/acs.est.7b00280
通讯作者	Guo, Qingjun(guoqj@igsnrr.ac.cn)
英文摘要	Recently air pollution is seriously threatening the health of millions of people in China. The multiple sulfur isotopic composition of sulfate in PM2.5 samples collected in Beijing is used to better constrain potential sources and formation processes of sulfate aerosol. The Delta S-33 values of sulfate in PM2.5 show a pronounced seasonality with positive values in spring, summer and autumn and negative values in winter. Positive Delta S-33 anomalies are interpreted to result from SO2 photolysis with self-shielding, and may reflect air mass transport between the troposphere and the stratosphere. The negative Delta S-33 signature (-0.300 parts per thousand < Delta S-33 < 0 parts per thousand) in winter is possibly related to incomplete combustion of coal in residential stoves during the heating season, implying that sulfur dioxide released from residential stoves in more rural areas is an important contributor to atmospheric sulfate. However, negative Delta S-33 anomalies (-0.664 parts per thousand < Delta S-33 <- 0.300 parts per thousand) in winter and positive Delta S-33 anomalies (0.300 parts per thousand < Delta S-33 < 0.480 parts per thousand) in spring, summer, and autumn suggest sulfur isotopic equilibrium on an annual time frame, which may provide an implication for the absence of mass-independent fractionation of sulfur isotopes (S-MIF) in younger sediments. Results obtained here reveal that reducing the usage of coal and improving the heating system in rural areas will be important for efficiently decreasing the emissions of sulfur in China and beyond.
资助项目	NSFC[41625006] ; NSFC[4151101008] ; Chinese Academy of Sciences[XDB15020401] ; Sino-German Center[GZ1055] ; Feature Institute Program of the Chinese Academy of Sciences (Comprehensive Technical Scheme and Integrated Demonstration for Remediation of Soil and Groundwater in Typical Area)
WOS关键词	MASS-INDEPENDENT FRACTIONATION ; COAL COMBUSTION ; ATMOSPHERIC SULFUR ; ARCHEAN ATMOSPHERE ; SO2 PHOTOLYSIS ; HAZE EVENTS ; WINTER HAZE ; CHINA ; CHEMISTRY ; EMISSIONS
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000406086100006
资助机构	NSFC ; Chinese Academy of Sciences ; Sino-German Center ; Feature Institute Program of the Chinese Academy of Sciences (Comprehensive Technical Scheme and Integrated Demonstration for Remediation of Soil and Groundwater in Typical Area)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/62569]
专题	中国科学院地理科学与资源研究所
通讯作者	Guo, Qingjun
作者单位	1.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Westfal Wilhelms Univ Munster, Inst Geol & Palaontol, Corrensstr 24, D-48149 Munster, Germany 4.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Guizhou, Peoples R China 5.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Han, Xiaokun,Guo, Qingjun,Strauss, Harald,et al. Multiple Sulfur Isotope Constraints on Sources and Formation Processes of Sulfate in Beijing PM2.5 Aerosol[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(14):7794-7803.
APA	Han, Xiaokun.,Guo, Qingjun.,Strauss, Harald.,Liu, Congqiang.,Hu, Jian.,...&Kong, Jing.(2017).Multiple Sulfur Isotope Constraints on Sources and Formation Processes of Sulfate in Beijing PM2.5 Aerosol.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(14),7794-7803.
MLA	Han, Xiaokun,et al."Multiple Sulfur Isotope Constraints on Sources and Formation Processes of Sulfate in Beijing PM2.5 Aerosol".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.14(2017):7794-7803.