| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-08-14 |
| タイトル |
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タイトル |
Assessment of soil-soil solution distribution coefficients of global fallout 237Np and 239Pu in Japanese upland soils |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Jian Zheng
Tagami Keiko
Uchida Shigeo
Sanae Shibutani
Keisuke Ishida
Takafumi Hamamoto
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
237Np and 239Pu are important radionuclides in the safety assessment related to geological disposal of radioactive waste because of the possibility of long-term exposure to humans. Mobilities of these radionuclides in the environment are of particular importance for their radiation dose evaluation; therefore, in this study, we have made the assessment of the soil-soil solution distribution coefficient (Kd, L/kg) using global fallout 237Np and 239Pu in Japanese upland soils. The Kd values were determined by extracting these radionuclides from 24 soil samples using a laboratory batch method. The desorption Kd values of 237Np ranged from 3.3×102 to 1.0×104 L/kg, and their GM and AM were 1.7×103 L/kg and 2.6×103 L/kg, respectively. The desorption Kd values of 239Pu were found to vary from 9.4×103 to 7.1×104 L/kg, and their geometric mean (GM) and arithmetic mean (AM) were 3.3×104 L/kg and 4.0×104 L/kg, respectively. A comparison between the obtained Kd values of 239Pu and 237Np indicated that the former was about one order of magnitude higher than the latter in Japanese upland soils. |
| 書誌情報 |
Journal of Environmental Radioactivity
巻 266-267,
p. 107241,
発行日 2023-07
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| 出版者 |
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出版者 |
Elsevier |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0265-931X |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.jenvrad.2023.107241. |
