DOI: 10.1016/j.atmosenv.2014.03.053
Scopus记录号: 2-s2.0-84897474764
论文题名: An integrated process rate analysis of a regional fine particulate matter episode over yangtze river delta in 2010
作者: Li L ; , Huang C ; , Huang H ; Y ; , Wang Y ; J ; , Yan R ; S ; , Zhang G ; F ; , Zhou M ; , Lou S ; R ; , Tao S ; K ; , Wang H ; L ; , Qiao L ; P ; , Chen C ; H ; , Streets D ; G ; , Fu J ; S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 91 起始页码: 60
结束页码: 70
语种: 英语
英文关键词: CMAQ
; Integrated process rate
; PM 2.5
; Yangtze River Delta
Scopus关键词: Aerosols
; Atmospheric humidity
; Deposition
; Nitrogen oxides
; Pollution detection
; River pollution
; Sulfur dioxide
; Sun
; Volatile organic compounds
; Advanced diagnostics
; CMAQ
; Fine particulate matter
; Homogeneous nucleation
; Horizontal diffusions
; Horizontal transport
; Planetary boundary layers
; Yangtze river delta
; Atmospheric movements
; ammonia
; carbon
; element
; nitrate
; organic carbon
; sulfate
; advection-diffusion equation
; aerosol
; atmospheric deposition
; atmospheric pollution
; boundary layer
; coastal zone
; concentration (composition)
; emission inventory
; episodic event
; humidity
; integrated approach
; nitrogen oxides
; oxidation
; pollutant transport
; pollution monitoring
; rural-urban comparison
; solar radiation
; sulfur dioxide
; surface layer
; urban atmosphere
; volatile organic compound
; advection
; aerosol
; air pollution
; article
; boundary layer
; chemical reaction
; combustion
; desulfurization
; diffusion
; dry deposition
; humidity
; particle size
; particulate matter
; physical phenomena
; priority journal
; river
; solar radiation
; urban area
; wet deposition
; China
; Hangzhou
; Jiangsu
; Nanjing [Jiangsu]
; Shanghai
; Yangtze Delta
; Zhejiang
; Zhoushan
; Zhoushan Island
; Zhoushan Islands
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: A high PM2.5 pollution episode was detected in Shanghai in November 2010. The integrated process rate method, an advanced diagnostic tool, was applied to account for the contribution of different atmospheric processes during the high pollution episode in the Yangtze River Delta region (YRD). The PM2.5 process analysis indicates that the emission of fine particles is the dominant source of high surface PM2.5 concentrations in the major cities of the YRD like Shanghai, Nanjing, and Hangzhou, following horizontal transportation and aerosols. The PM2.5 concentration could be reduced due to vertical advection and diffusion from lower levels to the upper air. The aerosols process such as homogeneous nucleation and condensation producing PM2.5 occurs throughout the PBL layer in urban areas, causing vertical transport from upper levels down to the surface layer. The aerosols process is much more significant in a downwind rural and coastal site like Zhoushan than in the urban areas. The PM2.5 change initiated by both horizontal transport and vertical transport is much stronger at 40-2000m height than in the surface layer, while the PM2.5 change caused by horizontal diffusion is very small. Dry deposition can significantly reduce concentration of the particulates in the surface level of the atmosphere, and wet deposition can remove the particles in the planetary boundary layer (PBL). The cloud processes can either increase PM2.5 due to the aqueous-phase oxidation of SO2 and NO2 or remove PM2.5 due to cloud scavenging. Solar radiation and humidity are more important to secondary pollution, and they are the significant external factors affecting the chemical reactions among sulfur dioxide, nitrogen oxides, ammonia, volatile compounds and fine particles. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80798
Appears in Collections: 气候变化事实与影响
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作者单位: Sate Environmental Protection Key Laboratory of the Cause, Prevention of Urban Complex Air Pollution (under construction), Shanghai 200233, China; Shanghai Academy of Environmental Sciences, Shanghai 200233, China; Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; Decision and Information Sciences Division, Argonne National Laboratory, Argonne, IL 60439, United States; Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, TN 37996, United States
Recommended Citation:
Li L,, Huang C,, Huang H,et al. An integrated process rate analysis of a regional fine particulate matter episode over yangtze river delta in 2010[J]. Atmospheric Environment,2014-01-01,91