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Ecological half-lives of radiocesium in 16 Species in marine biota after the TEPCO's Fukushima daiichi nuclear power plant accident
https://repo.qst.go.jp/records/46684
https://repo.qst.go.jp/records/46684e3f06151-33e3-4777-82d6-b01ed4f21ded
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-12-16 | |||||
| タイトル | ||||||
| タイトル | Ecological half-lives of radiocesium in 16 Species in marine biota after the TEPCO's Fukushima daiichi nuclear power plant accident | |||||
| 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 |
Iwata, Kayoko
× Iwata, Kayoko× Tagami, Keiko× Uchida, Shigeo× 岩田 佳代子× 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 | Fukushima Daiichi Nuclear Power Plant (FDNPP) accident of March 2011 caused the discharge of a considerable quantity of radionuclides, including 137Cs. Due to its long half-life (30.17 y), the fate of 137Cs in the marine biota is of great interest. This study aims to evaluate, using food monitoring data, ecological half-lives (Teco) of 137Cs in marine biota caught offshore of Fukushima. The data were categorized into two regional groups (north and south) with respect to the FDNPP site, and the regional 137Cs concentration trend and estimated Teco in the marine biota were appraised. Although 137Cs concentration in the seawater in the south was higher than that in the north, Teco values remained relatively consistent among common species of both regions. Teco was then compared with biological half-life (Tb) estimated in laboratory settings. The ratios of Teco to Tb were inconsistent among different groups of marine species. The ratios of Teco to Tb for brown seaweed and bivalves were approximately 1, and for demersal fish ranged from 4.4 to 16.1. The reasons for different ratios of Teco and Tb values may be attributed to environmental and ecological factors, such as different trophic levels. | |||||
| 書誌情報 |
Environmental Science & Technology 巻 47, 号 14, p. 7696-7703, 発行日 2013-07 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0013-936X | |||||
