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Plutonium concentration and 240Pu/239Pu atomic ratio in liver of squid collected in the coastal sea areas of Japan
https://doi.org/10.24517/00010250
https://doi.org/10.24517/00010250f0fbfcb9-1e5f-4c3d-a8a3-660eaaaabe65
| 名前 / ファイル | ライセンス | アクション |
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SC-PR-OIKAWA-S-170.pdf (2.2 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||
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| 公開日 | 2017-10-03 | |||||||
| タイトル | ||||||||
| タイトル | Plutonium concentration and 240Pu/239Pu atomic ratio in liver of squid collected in the coastal sea areas of Japan | |||||||
| 言語 | en | |||||||
| 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 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.24517/00010250 | |||||||
| ID登録タイプ | JaLC | |||||||
| 著者 |
Oikawa, Shinji
× Oikawa, Shinji× Yamamoto, Masayoshi |
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| 著者別表示 |
山本, 政儀
× 山本, 政儀
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| 提供者所属 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 財団法人 日本分析センター | |||||||
| 提供者所属 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 元・金沢大学大学院自然科学研究科 | |||||||
| 提供者所属 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 金沢大学環日本海域環境研究センター地球環境計測研究部門 | |||||||
| 提供者所属 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 金沢大学理学部 | |||||||
| 書誌情報 |
Journal of Environmental Radioactivity 巻 93, 号 3, p. 170-180, 発行日 2007-01-01 |
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| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0265-931X | |||||||
| 出版者 | ||||||||
| 出版者 | Elsevier | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Plutonium isotopes, 239Pu and 240Pu, were measured in liver samples from Surume squid using a sector-field high resolution ICP-MS after radiochemical purification. Surume squid samples were obtained from nine landing ports in Japanese inshore during fishery season from September to December 2002. Concentrations of 239Pu and 240Pu ranged from 1.5 to 28 mBq kg-1 and 1.1 to 24 mBq kg-1, respectively. Plutonium (239,240Pu) concentrations in liver were several thousand times higher than levels found in seawater. The concentration factor (CF) compared to seawater for 239,240Pu and 13 other elements ranged from 100 to 107. The CF values for 239,240Pu, V and Th were 102-104. Pu had an intermediate CF between conservative and scavenged elements. 240Pu/239Pu atomic ratios in the squid liver ranged from 0.177 to 0.237 which were slightly higher than 0.178 ± 0.014 for global fallout. The variations of 240Pu/239Pu atomic ratios in ocean currents with different source functions are important for interpreting high 240Pu/239Pu atomic ratios in Surume squid liver. It seems likely that Pu with high 240Pu/239Pu atomic ratio is continuously transported through the solubilization and seawater transport from the North Equatorial Current to Kuroshio and its branch, Tsushima Current. By assuming that Pu found in Surume squid liver is a mixture of global fallout Pu (0.178) and close-in fallout Pu with high 240Pu/239Pu atomic ratio (0.30-0.36) around Bikini Atoll, Pu contribution from Bikini close-in fallout Pu accounts for close to 35% of the whole plutonium in Surume squid liver. These results highlight that Surume squid is a useful organism for evaluating environmental Pu levels of larger sea area and facilitate the development of models to understand oceanic transport of close-in fallout Pu from Bikini Atoll. © 2007 Elsevier Ltd. All rights reserved | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | AM | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||
| 関連URI | ||||||||
| 関連タイプ | isIdenticalTo | |||||||
| 識別子タイプ | URI | |||||||
| 関連識別子 | http://www.elsevier.com/locate/issn/0265931X | |||||||
| 関連URI | ||||||||
| 関連タイプ | isIdenticalTo | |||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | https://doi.org/10.1016/j.jenvrad.2006.12.009 | |||||||
