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Characterization of isoprene-derived secondary organic aerosols at a rural site in North China Plain with implications for anthropogenic pollution effects
Li, Jianjun1; Wang, Gehui1,2,3,4; Wu, Can1,4; Cao, Cong1,4; Ren, Yanqin1,4; Wang, Jiayuan1,4; Li, Jin1,4; Cao, Junji1; Zeng, Limin5,6; Zhu, Tong5,6
2018-01-11
发表期刊SCIENTIFIC REPORTS
卷号8期号:2018页码:535
文章类型Article
摘要Isoprene is the most abundant non-methane volatile organic compound (VOC) and the largest contributor to secondary organic aerosol (SOA) burden on a global scale. In order to examine the influence of high concentrations of anthropogenic pollutants on isoprene-derived SOA (SOA(i)) formation, summertime PM2.5 filter samples were collected with a three-hour sampling interval at a rural site in the North China Plain (NCP), and determined for SOA(i) tracers and other chemical species. RO2+NO pathway derived 2-methylglyceric acid presented a relatively higher contribution to the SOA, due to the high-NOx (similar to 20 ppb) conditions in the NCP that suppressed the reactive uptake of RO2+HO2 reaction derived isoprene epoxydiols. Compared to particle acidity and water content, sulfate plays a dominant role in the heterogeneous formation process of SOA(i). Diurnal variation and correlation of 2-methyltetrols with ozone suggested an important effect of isoprene ozonolysis on SOA(i) formation. SOA(i) increased linearly with levoglucosan during June 10-18, which can be attributed to an increasing emission of isoprene caused by the field burning of wheat straw and a favorable aqueous SOA formation during the aging process of the biomass burning plume. Our results suggested that isoprene oxidation is highly influenced by intensive anthropogenic activities in the NCP.
WOS标题词Science & Technology
DOI10.1038/s41598-017-18983-7
关键词[WOS]2013 SOUTHERN OXIDANT ; THERMODYNAMIC-EQUILIBRIUM MODEL ; MASS-SPECTROMETRY ; 2-METHYLGLYCERIC ACID ; COMPOUND EMISSIONS ; RELATIVE-HUMIDITY ; REACTIVE UPTAKE ; UNITED-STATES ; SOA FORMATION ; GROUND SITE
收录类别SCI
语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000419942100018
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5183
专题粉尘与环境研究室
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China
2.East China Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geosci Informat, Shanghai, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Peking Univ, Coll Environm Sci & Engn, BIC ESAT, Beijing, Peoples R China
6.Peking Univ, Coll Environm Sci & Engn, SKL ESPC, Beijing, Peoples R China
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Li, Jianjun,Wang, Gehui,Wu, Can,et al. Characterization of isoprene-derived secondary organic aerosols at a rural site in North China Plain with implications for anthropogenic pollution effects[J]. SCIENTIFIC REPORTS,2018,8(2018):535.
APA Li, Jianjun.,Wang, Gehui.,Wu, Can.,Cao, Cong.,Ren, Yanqin.,...&Zhu, Tong.(2018).Characterization of isoprene-derived secondary organic aerosols at a rural site in North China Plain with implications for anthropogenic pollution effects.SCIENTIFIC REPORTS,8(2018),535.
MLA Li, Jianjun,et al."Characterization of isoprene-derived secondary organic aerosols at a rural site in North China Plain with implications for anthropogenic pollution effects".SCIENTIFIC REPORTS 8.2018(2018):535.
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