IEECAS OpenIR  > 粉尘与环境研究室
Characteristics of wintertime VOCs in suburban and urban Beijing: concentrations, emission ratios, and festival effects
Li, Kun1,2,3; Li, Junling1,2; Tong, Shengrui1,2; Wang, Weigang1,2; Huang, Ru-Jin4; Ge, Maofa1,2,5
Corresponding AuthorGe, Maofa(gemaofa@iccas.ac.cn)
2019-06-19
Source PublicationATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
Volume19Issue:12Pages:8021-8036
AbstractMeasurements of volatile organic compounds (VOCs) were performed at a suburban site and an urban site in Beijing during the winter of 2014-2015. The VOC concentrations and emission ratios (ERs) to CO were compared at these two sites. It is found that though the VOC concentrations at the urban site are 2.67 +/- 1.15 times of those at the suburban site, the ERs are similar (within a factor of 1.5). It is indicated that (1) the VOCs at suburban areas are mainly from the transportation from the urban areas and (2) the ERs measured at the urban areas are also valid for the surrounding suburban areas. By comparing the diurnal variations and the contribution of anthropogenic emissions at both sites, we find that the photochemical processes are very active at the urban site, and these processes play an important role in the daytime oxygenated VOC (OVOC) formation. The methanol at the urban site and the formic acid at the suburban site probably have additional sources, which are attributed to be solvent use and soil/agriculture, respectively. The festival effects from the Chinese New Year (CNY) were investigated. The VOC concentrations decreased similar to 60 % during CNY holidays, probably due to the population migration during festival holidays. In addition, fireworks are found to be an important source of acetonitrile, aromatics, and some OVOCs during the CNY festival and should be controlled more strictly. This study provides key characteristics of wintertime VOCs in suburban and urban Beijing and has implications for better understanding the atmospheric chemistry of VOCs in and around this megacity.
DOI10.5194/acp-19-8021-2019
WOS KeywordVOLATILE ORGANIC-COMPOUNDS ; SECONDARY SOURCES ; AEROSOL COMPOSITION ; FINE PARTICULATE ; MIXING RATIOS ; HAZE EVENTS ; MEXICO-CITY ; PTR-MS ; FIREWORKS ; PHASE
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFC0202202] ; National Key Research and Development Program of China[2017YFC0212701] ; National Natural Science Foundation of China[91544227] ; National Natural Science Foundation of China[21477134] ; National Natural Science Foundation of China[91644219]
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000472156200001
PublisherCOPERNICUS GESELLSCHAFT MBH
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/13816
Collection粉尘与环境研究室
Corresponding AuthorGe, Maofa
Affiliation1.Chinese Acad Sci, BNLMS, State Key Lab Struct Chem Unstable & Stable Speci, CAS Res Educ Ctr Excellence Mol Sci,Inst Chem, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China
3.Environm & Climate Change Canada, Air Qual Res Div, Toronto, ON M3H 5T4, Canada
4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
5.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Fujian, Peoples R China
Recommended Citation
GB/T 7714
Li, Kun,Li, Junling,Tong, Shengrui,et al. Characteristics of wintertime VOCs in suburban and urban Beijing: concentrations, emission ratios, and festival effects[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(12):8021-8036.
APA Li, Kun,Li, Junling,Tong, Shengrui,Wang, Weigang,Huang, Ru-Jin,&Ge, Maofa.(2019).Characteristics of wintertime VOCs in suburban and urban Beijing: concentrations, emission ratios, and festival effects.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(12),8021-8036.
MLA Li, Kun,et al."Characteristics of wintertime VOCs in suburban and urban Beijing: concentrations, emission ratios, and festival effects".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.12(2019):8021-8036.
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