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Levels of lanthanides and natural radionuclides in the uncultivated soils near industrial area of Bangladesh
https://repo.qst.go.jp/records/43761
https://repo.qst.go.jp/records/43761e77798b5-d847-48bb-8ad1-637cc98a7bd9
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2005-08-10 | |||||
タイトル | ||||||
タイトル | Levels of lanthanides and natural radionuclides in the uncultivated soils near industrial area of Bangladesh | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Sharifa, Sultana Mahfuza
× Sharifa, Sultana Mahfuza× Muramatsu, Yasuyuki× Yoshida, Satoshi× 村松 康行× 吉田 聡 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Twenty five uncultivated surface soil samples collected from the northern and southern regions of Dhaka Export Processing Zone (DEPZ), industrial area of Bangladesh, were analyzed for their contents of Y, lanthanides and natural radionuclides (Th and U) using inductively coupled plasma mass spectrometer (ICP-MS). Analogous concentrations of the Y, lanthanides, Th and U were observed in the both regions of DEPZ around several kilometer distances. Further, the measured values showed no particular contamination. However, the concentrationsof the light lanthanides (La, Ce and Nd) in the Bangladeshi soils were around twice than the worldwide average value. But, the smooth curve of the chondrite normalized patterns of the lanthanides suggested that the lanthanide contents of the Bangladeshi soils in thisarea are the results of the natural dispersion process rather than the anthropogenic activities. In addition, the relatively high Th and U concentrations and Th/U ratio were observed in Bangladeshi soils of this area, most likely due to the effect of their parent materials such as clay stones which have a high Th/U ratio. Since, this is the first precise result for the Y, lanthanides, Th and U contents in Bangladeshi soils, it could be useful in understanding thebackground level and the characteristics of these elements in the Bangladeshi soils. | |||||
書誌情報 |
International Journal of Environmental Analytical Chemistry 巻 83, p. 375-387, 発行日 2003 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0306-7319 |