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Some Considerations on Water-to-Fish Transfer Data Collected in Japan for Radionuclides and Stable Elements
https://repo.qst.go.jp/records/70408
https://repo.qst.go.jp/records/70408e30ecb56-08c2-4c1c-9106-dbc3bb5a3e17
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-03-07 | |||||
| タイトル | ||||||
| タイトル | Some Considerations on Water-to-Fish Transfer Data Collected in Japan for Radionuclides and Stable Elements | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Tagami, Keiko
× Tagami, Keiko× Uchida, Shigeo× 田上 恵子× 内田 滋夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The water-to-fish concentration factor (CF) is defined as the ratio of concentration of a radionuclide in the fish part (Bq/kg-fresh) to that in water (Bq/L, unless otherwise specified). CFs have been used in mathematical models for environmental safety assessment of radioactive waste disposal. In the present paper, published global fallout Cs-137 and Sr-90 concentration data for fish living in freshwater or seawater areas in Japan were collected to calculate CFs. Among the collected data, suitable data to obtain CF values for Cs-137 (CF-Cs) and Sr-90 (CF-Sr) were identified. They included Cs data for three species of freshwater fish, and the CF-Cs in muscle for the three species ranged from 31 to 855. Suitable data were identified for 14 seawater fish species, and the CF-Cs in muscle for 12 of them ranged from 15 to 481. For Sr-90, no data sets were available for any freshwater fish. Data were identified for eight species of seawater fish, and the CF-Sr in muscle for seven of them ranged from 0.4 to 7.9. Geometric mean values of CF-Cs and CF-Sr were almost the same among the seawater fish species. Stable element data were also collected to check whether or not the same group elements had similar CF values. The CFs for the Cs and K pair and the Sr and Ca pair were close, but a statistical difference was observed. Thus it is difficult to use data of K and Ca for calculating CF-Cs or CF-Sr. When CF-Cs and CF-stable Cs (calculated from literature values) were compared, no statistical difference was observed possibly because physico-chemical forms of stable Cs and Cs-137 are almost the same. Thus stable Cs can be used as an analogue of Cs-137 for CF determination. The applicability hypothesis is also valid for other radionuclide-stable element combinations where they are in physico-chemical equilibrium. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Waste Management Symposia 2011 | |||||
| 発表年月日 | ||||||
| 日付 | 2011-03-03 | |||||
| 日付タイプ | Issued | |||||
