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Soil-to-plant transfer factors of stable elements and naturally occurring radionuclides: (2) Rice collected in Japan
https://repo.qst.go.jp/records/44892
https://repo.qst.go.jp/records/4489254649512-cbbe-4ff4-9f6c-7fc0592d3058
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-06-20 | |||||
| タイトル | ||||||
| タイトル | Soil-to-plant transfer factors of stable elements and naturally occurring radionuclides: (2) Rice collected in Japan | |||||
| 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 |
Uchida, Shigeo
× Uchida, Shigeo× Tagami, Keiko× Hirai, Ikuko× 内田 滋夫× 田上 恵子× 平井 育子 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The critical paths of radionuclides and the critical foods in Japan are different from those in European and North American countries because agricultural products and food customs are different. Consequently, safety assessment in Japan is required to consider rice and vegetables as critical foods. In this study, we measured soil-to-plant transfer factors (TFs) for rice using naturally existing elements as analogues of radionuclides under equilibrium conditions. Rice and associated soil samples were collected from 50 sampling sites throughout Japan and TFs of 36 and 34 elements for brown rice and white rice, respectively, were calculated on dry weight basis. Probability distributions of TFs of elements for brown rice and white rice were a log-normal type. Except for As and Mo, TFs for brown rice were usually lower than those of wheat and barley especially for K, Fe, Sr (t-test: p<0.05) and slightly lower for Ba, rare earth elements, Th and U. When the TFs of brown rice were compared with those of white rice, TFs of Th and U were higher in white rice, but for many other elements, the TFs were lower in white rice than in brown rice. Comparison of the data with previous reported values for Sr and Cs showed that TFs of stable Sr and Cs were close to the respective values of fallout 90Sr and 137Cs observed in field experiments. Thus, the TFs of naturally existing elements can be used as TFs of those radionuclides which have been in contacted with the environment for a long time and have reached equilibrium conditions. |
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| 書誌情報 |
Journal of Nuclear Science and Technology 巻 44, 号 5, p. 779-790, 発行日 2007-06 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0022-3131 | |||||
