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Diurnal Variations of Isoprene, Monoterpenes, and Toluene Oxidation Products in Aerosols at a Rural Site of Guanzhong Plain, Northwest China
Wang, Xiaoqing1,2; Guo, Xiao1; Dai, Wenting1; Liu, Suixin1; Shen, Minxia1,2; Liu, Yali3; Zhang, Yifan3; Cao, Yue3; Qi, Weining1; Li, Lu1; Cao, Junji1; Li, Jianjun1,4,5
Corresponding AuthorCao, Junji(cao@loess.llqg.ac.cn) ; Li, Jianjun(lijj@ieecas.cn)
2022-04-01
Source PublicationATMOSPHERE
Volume13Issue:4Pages:13
AbstractIn this study, the characteristics and formation mechanism of summertime isoprene, monoterpene, and toluene-derived secondary organic aerosols (SOAs) were investigated in a rural area of Guanzhong Plain, Northwest China. The variations in key indicators of primary sources indicated a significant influence of biomass burning on PM2.5 during the observation period. The concentrations of total measured SOA tracers from isoprene, monoterpene, and toluene were 40.85 +/- 17.31, 24.27 +/- 7.50, and 10.61 +/- 0.33 ng/m(3), respectively. The average ratio of cis-pinonic and pinic acids to 3-Methyl-1,2,3-butanetricarboxylic acid (MBTCA)(P/M) were 0.45 and 0.85 by day and by night, respectively. The low ratio in the daytime was mainly due to the stronger photo-degradation and particle-to-gas distribution of semi-volatile cis-pinonic and pinic acids. The monoterpene SOA tracers were significantly correlated with levoglucosan at night (R-2 = 0.51, p < 0.01), as were toluene SOA tracers and levoglucosan (R-2 > 0.67, p < 0.01), indicating the significant contribution of biomass combustion to these SOAs. The mass concentration of isoprene-, monoterpenes-, and toluene-derived SOC was estimated by using the tracer yield method. The total calculated SOCs by day and by night were 0.25-0.71 (average: 0.46) and 0.26-0.78 (average: 0.42) mu gC/m(3), accounting for 3.35-10.58% and 3.87-13.51% of OC by day and by night, respectively.
KeywordPM2.5 chemical composition SOA isoprene pinene and toluene Guanzhong Plain
DOI10.3390/atmos13040634
WOS KeywordSECONDARY ORGANIC AEROSOL ; ATMOSPHERIC AEROSOLS ; RELATIVE-HUMIDITY ; TRACER COMPOUNDS ; PHOTOOXIDATION ; MODEL ; EMISSION ; DISTRIBUTIONS ; SENSITIVITY ; MOUNTAIN
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41977332] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; Youth Innovation Promotion Association CAS[2020407]
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000786817300001
PublisherMDPI
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/17729
Collection粉尘与环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorCao, Junji; Li, Jianjun
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Xian Inst Innovat Earth Environm Res, Xian 710061, Peoples R China
4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
5.Natl Observat & Res Stn Reg Ecol Environm Change, Xian 710061, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiaoqing,Guo, Xiao,Dai, Wenting,et al. Diurnal Variations of Isoprene, Monoterpenes, and Toluene Oxidation Products in Aerosols at a Rural Site of Guanzhong Plain, Northwest China[J]. ATMOSPHERE,2022,13(4):13.
APA Wang, Xiaoqing.,Guo, Xiao.,Dai, Wenting.,Liu, Suixin.,Shen, Minxia.,...&Li, Jianjun.(2022).Diurnal Variations of Isoprene, Monoterpenes, and Toluene Oxidation Products in Aerosols at a Rural Site of Guanzhong Plain, Northwest China.ATMOSPHERE,13(4),13.
MLA Wang, Xiaoqing,et al."Diurnal Variations of Isoprene, Monoterpenes, and Toluene Oxidation Products in Aerosols at a Rural Site of Guanzhong Plain, Northwest China".ATMOSPHERE 13.4(2022):13.
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