Physicochemical Properties of Asian Dust Sources
In order to fully understand the chemical properties of Asian dust particles, especially their transformation and aging processes, it is desirable to investigate the nature of original sands collected at local source areas in China. This study presents the detailed properties of sands collected at f...
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Asian Association for Atmospheric Environment
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doaj-d989193a1a804b2fa1ebd0c47a1c35302020-11-25T02:28:22ZengAsian Association for Atmospheric EnvironmentAsian Journal of Atmospheric Environment1976-69122287-11602008-06-0121263310.5572/ajae.2008.2.1.026Physicochemical Properties of Asian Dust SourcesChang-Jin Ma0Mikio Kasahara1Susumu Tohno2Ki-Hyun Kim3Department of Environmental Science, Fukuoka Women’s University, Fukuoka, JapanInstitute of Science and Technology Research, Chubu University, Aichi, JapanGraduate School of Energy Science, Kyoto University, Kyoto, JapanDepartment of Earth and Environmental Sciences, Sejong University, Seoul, KoreaIn order to fully understand the chemical properties of Asian dust particles, especially their transformation and aging processes, it is desirable to investigate the nature of original sands collected at local source areas in China. This study presents the detailed properties of sands collected at four different desert regions (Yinchuan, Wuwei, Dulan, and Yanchi) in China. Most of sands have irregular shape with yellowish coloration, whereas some of them show peculiar colors. The relative size distribution of sands collected at Yinchuan, Wuwei, and Dulan deserts exhibits monomodal with the maximum level between 200 and 300 μm, whereas that of Yanchi desert is formed between 100 and 200 μm. The mass concentration ratio of each element to that of Si (Z/Si) determined by PIXE analysis has a tendency towards higher Z/Si ratios for soil derived elements. It was possible to visually reconstruct the elemental maps on the surface of individual sands by XRF microprobe technique. In addition, the multielemental mass concentration could be quantitatively calculated for numerous spots of desert sands.http://asianjae.org/_common/do.php?a=full&b=11&bidx=1592&aidx=20026asian dustdesert sandx-ray fluorescencelong-range transportelement |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chang-Jin Ma Mikio Kasahara Susumu Tohno Ki-Hyun Kim |
spellingShingle |
Chang-Jin Ma Mikio Kasahara Susumu Tohno Ki-Hyun Kim Physicochemical Properties of Asian Dust Sources Asian Journal of Atmospheric Environment asian dust desert sand x-ray fluorescence long-range transport element |
author_facet |
Chang-Jin Ma Mikio Kasahara Susumu Tohno Ki-Hyun Kim |
author_sort |
Chang-Jin Ma |
title |
Physicochemical Properties of Asian Dust Sources |
title_short |
Physicochemical Properties of Asian Dust Sources |
title_full |
Physicochemical Properties of Asian Dust Sources |
title_fullStr |
Physicochemical Properties of Asian Dust Sources |
title_full_unstemmed |
Physicochemical Properties of Asian Dust Sources |
title_sort |
physicochemical properties of asian dust sources |
publisher |
Asian Association for Atmospheric Environment |
series |
Asian Journal of Atmospheric Environment |
issn |
1976-6912 2287-1160 |
publishDate |
2008-06-01 |
description |
In order to fully understand the chemical properties of Asian dust particles, especially their transformation and aging processes, it is desirable to investigate the nature of original sands collected at local source areas in China. This study presents the detailed properties of sands collected at four different desert regions (Yinchuan, Wuwei, Dulan, and Yanchi) in China. Most of sands have irregular shape with yellowish coloration, whereas some of them show peculiar colors. The relative size distribution of sands collected at Yinchuan, Wuwei, and Dulan deserts exhibits monomodal with the maximum level between 200 and 300 μm, whereas that of Yanchi desert is formed between 100 and 200 μm. The mass concentration ratio of each element to that of Si (Z/Si) determined by PIXE analysis has a tendency towards higher Z/Si ratios for soil derived elements. It was possible to visually reconstruct the elemental maps on the surface of individual sands by XRF microprobe technique. In addition, the multielemental mass concentration could be quantitatively calculated for numerous spots of desert sands. |
topic |
asian dust desert sand x-ray fluorescence long-range transport element |
url |
http://asianjae.org/_common/do.php?a=full&b=11&bidx=1592&aidx=20026 |
work_keys_str_mv |
AT changjinma physicochemicalpropertiesofasiandustsources AT mikiokasahara physicochemicalpropertiesofasiandustsources AT susumutohno physicochemicalpropertiesofasiandustsources AT kihyunkim physicochemicalpropertiesofasiandustsources |
_version_ |
1724838524162670592 |