DOI: 10.1016/j.atmosenv.2018.01.035
Scopus记录号: 2-s2.0-85041381486
论文题名: Comparison of atmospheric new particle formation events in three Central European cities
作者: Németh Z ; , Rosati B ; , Zíková N ; , Salma I ; , Bozó L ; , Dameto de España C ; , Schwarz J ; , Ždímal V ; , Wonaschütz A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 178 起始页码: 191
结束页码: 197
语种: 英语
英文关键词: New particle formation
; Nucleation strength factor
; Particle number concentration
; Particle number size distribution
; Ultrafine particles
; Urban environment
Scopus关键词: Nucleation
; Size distribution
; Urban planning
; New particle formation
; Particle number concentration
; Particle number size distribution
; Strength factor
; Ultrafine particle
; Urban environments
; Urban growth
; sulfuric acid
; aerosol
; aerosol formation
; comparative study
; concentration (composition)
; nucleation
; particle size
; size distribution
; urban area
; aerosol
; air
; air pollutant
; Article
; atmosphere
; Central European
; city
; comparative study
; environmental factor
; human
; measurement accuracy
; new particle formation
; particle size
; priority journal
; seasonal variation
; spring
; summer
; urban area
; Austria
; Budapest
; Czech Republic
; Hungary
; Prague [Czech Republic]
; Vienna
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: Simultaneous particle number size distribution measurements were performed in the urban environment of Budapest, Vienna, and Prague, three Central European cities located within 450 km of each other. The measurement days from the continuous, 2-year long campaign were classified for new particle formation (NPF) events using an adapted classification scheme for urban sites. The total numbers of NPF event days were 152 for Budapest, 69 for Vienna, and 143 for Prague. There were 12 days when new particle formation took place at all three sites; 11 out of these 12 days were in spring and in summer. There were only 2 (Budapest-Vienna), 19 (Budapest-Prague), and 19 (Vienna-Prague) nucleation days, when NPF did not occur on the third site. The main difference was related to source and sink terms of gas-phase sulphuric acid. Air mass origin and back-trajectories did not show any substantial influence on the atmospheric nucleation phenomena. The relative contribution of particles from NPF with respect to regional aerosol to the particles originating from all sources was expressed as nucleation strength factor. The overall mean nucleation strength factors were 1.58, 1.54, and 2.01 for Budapest, Vienna, and Prague, respectively, and showed diurnal and seasonal variations. The monthly mean NSF varied from 1.2 to 3.2 in Budapest, from 0.7 to 1.9 in Vienna, and from 1.0 to 2.3 in Prague. This implies that the new particle formation in cities is a significant source of ultrafine (UF) particles, and the amount of them is comparable to the directly emitted UF particles. © 2018 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82962
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Chemistry, Eötvös University, Budapest, Hungary; Faculty of Physics, University of Vienna, Vienna, Austria; Laboratory of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals, Prague, Czech Republic; Hungarian Meteorological Service, Budapest, Hungary; Department of Chemistry, Aarhus University, Aarhus, Denmark
Recommended Citation:
Németh Z,, Rosati B,, Zíková N,et al. Comparison of atmospheric new particle formation events in three Central European cities[J]. Atmospheric Environment,2018-01-01,178