DOI: 10.1016/j.atmosenv.2015.09.055
Scopus记录号: 2-s2.0-84943809693
论文题名: Diurnal variations of fossil and nonfossil carbonaceous aerosols in Beijing
作者: Morino Y ; , Ohara T ; , Xu J ; , Hasegawa S ; , Zhao B ; , Fushimi A ; , Tanabe K ; , Kondo M ; , Uchida M ; , Yamaji K ; , Yang L ; , Song S ; , Dong W ; , Wu Y ; , Wang S ; , Hao J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 122 起始页码: 349
结束页码: 356
语种: 英语
英文关键词: Carbonaceous aerosol
; Chemical transport model
; Radiocarbon
; Source apportionment
; Volatility basis set
Scopus关键词: Aerosols
; Monte Carlo methods
; Organic carbon
; Urban growth
; Basis sets
; Carbonaceous aerosol
; Chemical transport models
; Radiocarbon
; Source apportionment
; Atmospheric movements
; carbon
; carbon 14
; fossil fuel
; organic carbon
; aerosol
; anthropogenic source
; atmospheric pollution
; carbon isotope
; concentration (composition)
; diurnal variation
; fossil
; pollutant source
; radiocarbon dating
; spatiotemporal analysis
; urban atmosphere
; volatilization
; aerosol
; Article
; atmospheric transport
; biomass
; chemical analysis
; China
; circadian rhythm
; concentration (parameters)
; electric power plant
; fossil
; household
; industry
; meteorology
; priority journal
; secondary organic aerosol
; simulation
; traffic and transport
; urban area
; Beijing [China]
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: For the source apportionment of carbonaceous aerosols, measurement of 14C is an effective technique. In particular, diurnal variations of fossil and nonfossil carbonaceous aerosols provide information about the sources and production pathways of elemental carbon (EC) and organic carbon (OC). In this study, concentrations of fine-mode aerosols, including EC, OC, and 14C, were observed with a time resolution of 6 h near the urban center of Beijing in June 2010. The observations indicate that the contribution of fossil secondary organic aerosol (SOA) increased during daytime. This finding is consistent with previous studies in other urban sites, suggesting that SOA production from anthropogenic sources is important in urban areas. We evaluated the performance of two chemical transport models (CTMs) with different SOA models on simulations of EC and OC. Both models well reproduced the concentration and diurnal variation of EC. OC concentrations were underestimated by more than half by the CTM with a SOA yield model, and were better reproduced by the CTM with a volatility basis set (VBS) model. However, even the VBS model underestimated both fossil and nonfossil total carbon (EC + OC), and possible reasons for this underestimation are discussed. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81383
Appears in Collections: 气候变化事实与影响
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作者单位: Center for Regional Environmental Research, National Institute for Environmental Studies, Japan; School of Environment, Tsinghua University, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, China; Atmospheric Environment Group, Center for Environmental Science in Saitama, Japan; Center for Environmental Measurement and Analysis, National Institute for Environmental Studies, Japan; Graduate School of Maritime Sciences, Kobe University, Japan; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, United States
Recommended Citation:
Morino Y,, Ohara T,, Xu J,et al. Diurnal variations of fossil and nonfossil carbonaceous aerosols in Beijing[J]. Atmospheric Environment,2015-01-01,122