DOI: 10.1016/j.atmosenv.2014.08.055
Scopus记录号: 2-s2.0-85028119066
论文题名: Reprint of: Number concentrations and elemental compositions of aerosol particles observed at Mt. Kiso-Komagatake in central Japan, 2010-2013
作者: Zaizen Y ; , Naoe H ; , Takahashi H ; , Igarashi Y
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 97 起始页码: 426
结束页码: 434
语种: 英语
英文关键词: Elemental composition
; Particle number concentration
; The free troposphere
Scopus关键词: Aerosols
; Energy dispersive spectroscopy
; Photochemical reactions
; Sulfate minerals
; Transmission electron microscopy
; Troposphere
; Carbonaceous particles
; Elemental compositions
; Energy dispersive X ray spectroscopy
; Free troposphere
; Long range transport
; Number concentration
; Optical particle counters
; Particle number concentration
; Atmospheric movements
; aluminum
; calcium
; carbon
; chloride
; chromium
; element
; ferric ion
; iron
; lead
; magnesium ion
; mercury
; mineral
; nickel
; nitrogen
; oxygen
; potassium
; silicon
; sodium
; sodium chloride
; sulfate
; sulfur
; titanium
; vanadium
; zinc
; aerosol composition
; air sampling
; chemical composition
; long range transport
; spatiotemporal analysis
; troposphere
; westerly
; wind direction
; aerosol
; altitude
; Article
; chemical composition
; chemical reaction
; dust
; falling
; gas
; Japan
; particle size
; photochemistry
; plume
; roentgen spectroscopy
; seasonal variation
; spring
; transmission electron microscopy
; wind
; winter
; Chubu
; Hokkaido
; Honshu
; Japan
; Japanese Alps
; Kiso Mountains
; Mount Komagatake
; Nagano
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: Aerosols in the lower troposphere over Japan are considered being influenced by those transported from Asian continent by westerly winds. In this study, we investigated the seasonal variation of aerosol number concentrations measured by means of optical particle counters at Mt. Kiso-Komagatake (2610m altitude) in central Japan during the period from January 2010 to May 2013. We also collected aerosol samples in different seasons during part of the observation period and investigated their elemental compositions using transmission electron microscopy (TEM) combined with energy dispersive X-ray spectroscopy (EDX). The seasonal variation of the number concentrations suggested that accumulation-mode particles (particle diameter>0.3μm) increased during late spring perhaps owing to gas-to-particle conversion by means of photochemical reactions. The number concentrations of supermicron particles (>1μm) were highest in spring, during which Asian dust events were frequent. Short-duration spikes in aerosol number concentrations, which were attributed to long-range transport from the Asian continent, were frequently observed in all seasons except summer. TEM analysis indicated that sulfate was the predominant component of accumulation-mode particles throughout the year. The number fraction of carbonaceous particles was also considerable, especially in samples in fall. The predominant components of supermicron particles collected during winter, spring and fall, and summer were sulfate, minerals, and sea salt, respectively. Our results suggest that the lower tropospheric air over central Japan is strongly influenced by long-range transport of aerosols in all seasons except summer. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80576
Appears in Collections: 气候变化事实与影响
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作者单位: Meteorological Research Institute, 1-1 Nagamine, Tsukuba, Ibaraki, Japan
Recommended Citation:
Zaizen Y,, Naoe H,, Takahashi H,et al. Reprint of: Number concentrations and elemental compositions of aerosol particles observed at Mt. Kiso-Komagatake in central Japan, 2010-2013[J]. Atmospheric Environment,2014-01-01,97