DOI: 10.1016/j.atmosenv.2015.03.033
Scopus记录号: 2-s2.0-84926681130
论文题名: Sources of ultrafine particles in the Eastern United States
作者: Posner L ; N ; , Pandis S ; N
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 111 起始页码: 103
结束页码: 112
语种: 英语
英文关键词: Chemical transport modeling
; Emissions
; Nucleation
; PMCAMx
Scopus关键词: Biomass
; Combustion
; Dust
; Gasoline
; Nucleation
; Particulate emissions
; Roads and streets
; Transportation
; Chemical transport models
; Emissions inventory
; Long range transport
; Particle number concentration
; PMCAMx
; Source apportionment
; Source contributions
; Ultrafine particle number
; Industrial emissions
; gasoline
; atmospheric modeling
; atmospheric pollution
; atmospheric transport
; biomass burning
; concentration (composition)
; emission inventory
; nucleation
; particulate matter
; pollutant source
; prediction
; Article
; biomass
; car
; combustion
; measurement
; particle size
; particulate matter
; prediction
; priority journal
; United States
; Oklahoma [United States]
; Pittsburg County
; United States
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: Source contributions to ultrafine particle number concentrations for a summertime period in the Eastern U.S. are investigated using the chemical transport model PMCAMx-UF. New source-resolved number emissions inventories are developed for biomass burning, dust, gasoline automobiles, industrial sources, non-road and on-road diesel. According to the inventory for this summertime period in the Eastern U.S., gasoline automobiles are responsible for 40% of the ultrafine particle number emissions, followed by industrial sources (33%), non-road diesel (16%), on-road diesel (10%), and 1% from biomass burning and dust. With these emissions as input, the chemical transport model PMCAMx-UF reproduces observed ultrafine particle number concentrations (N3-100 ) in Pittsburgh with an error of 12%. For this summertime period in the Eastern U.S., nucleation is predicted to be the source of more than 90% of the total particle number concentrations. The source contributions to primary particle number concentrations are on average similar to those of their source emissions contributions: gasoline is predicted to contribute 36% of the total particle number concentrations, followed by industrial sources (31%), non-road diesel (18%), on-road diesel (10%), biomass burning (1%), and long-range transport (4%). For this summertime period in Pittsburgh, number source apportionment predictions for particles larger than 3nm in diameter (traffic 65%, other combustion sources 35%) are consistent with measurement-based source apportionment (traffic 60%, combustion sources 40%). © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81765
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States; Department of Chemical Engineering, University of Patras, Patras, Greece
Recommended Citation:
Posner L,N,, Pandis S,et al. Sources of ultrafine particles in the Eastern United States[J]. Atmospheric Environment,2015-01-01,111