globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2014.05.005
Scopus记录号: 2-s2.0-84908313864
论文题名:
Modification of Asian-dust particles transported by different routes - A case study
作者: Zaizen Y; , Naoe H; , Takahashi H; , Okada K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 97
起始页码: 435
结束页码: 446
语种: 英语
英文关键词: Asian dust ; Electron microscopy ; Mineral aerosol ; Mixing state ; Size distribution
Scopus关键词: Size distribution ; Asian dust ; Dust particle ; Mineral aerosols ; Mixing state ; Electron microscopy ; mineral ; sulfate ; aerosol ; air mass ; cold front ; dust ; electron microscopy ; mineralogy ; particulate matter ; sulfate ; aerosol ; air pollution ; Article ; Asian ; chemical analysis ; dust ; mass ; transmission electron microscopy ; Gumma ; Honshu ; Ibaraki ; Japan ; Kanto ; Mount Haruna ; Tsukuba
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: Two separate Asian dust events occurred before and after the passage of a cold front over Japan on 21 March 2010. According to back trajectories and a model simulation, the two dusty air-masses originated from the same region in Mongoria or northern China and were transported over different routes to Japan. Samples of aerosol particles from both airmasses were collected at Tsukuba and Mt. Haruna and examined by single-particle analysis using a transmission electron microscope and an energy dispersive X-ray analyzer. The mixing properties of mineral aerosol were quite different in the two airmasses and size ranges. In the prefrontal airmass, which were associated with pollution, most of fine (<1μm) mineral aerosol was internally mixed with sulfate. On the contrary, mineral aerosols in the postfront airmass, which were relatively natural, were mostly externally mixed. In the latter case, the internal mixing was associated with Ca, however in the former case, mixing processes not concerning mineralogy was suggested. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80590
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. Modification of Asian-dust particles transported by different routes - A case study[J]. Atmospheric Environment,2014-01-01,97
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