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Anthropogenic Plutonium in the North Jiangsu tidal flats of the Yellow Sea in China
https://repo.qst.go.jp/records/47187
https://repo.qst.go.jp/records/471875f47b70a-0a81-4c21-bbee-a198d9a825b4
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-07-23 | |||||
| タイトル | ||||||
| タイトル | Anthropogenic Plutonium in the North Jiangsu tidal flats of the Yellow Sea in China | |||||
| 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 |
Liu, Zhiyong
× Liu, Zhiyong× Zheng, Jian× Pan, Shaoming× et.al× 劉 志勇× 鄭 建 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The 239+240Pu activities and 240Pu/239Pu atom ratios were analyzed using a double-focusing SF-ICP-MS for sediment core samples obtained in 2007-2008 from the North Jiangsu tidal flats in the Yellow Sea in China. Particular attention was focused on the 240Pu/239Pu atom ratios in the sediment to identify the origins of Pu isotopes. The profiles of 239+240Pu activities in the sediment cores are similar to those of the 137Cs activities. The 240Pu/239Pu atom ratios in the tidal flats showed typical global fallout values, indicating that this area did not receive the possible early direct close-in fallout or oceanic current transported Pu from the Pacific Proving Grounds (PPG). This is different from the sediments in the Yangtze River estuary in the East China Sea, where the PPG source Pu contributed ca. 45% to the total inventory. In addition, the observation of the global fallout origin Pu in the North Jiangsu tidal flats indicated that the nuclear power plant in the region was not causing any alteration/contamination to the 240Pu/239Pu atom ratios. The 239+240Pu and 137Cs activities/inventories in the sediment cores showed correlation to the mean clay sediment compositions (fine-particles) in the tidal flats. Therefore, mud deposits are served as sinks for the anthropogenic radionuclides in the tidal flats and the Yellow Sea. Integrated with the previously reported spatial distributions of 239+240Pu and 137Cs activities in the surface sediments of the Yellow Sea, the mechanism of Pu transport with the ocean currents and the scavenging characteristics in the Yellow Sea were discussed. | |||||
| 書誌情報 |
Environmental Monitoring and Assessment 巻 185, 号 8, p. 6539-6551, 発行日 2011-02 |
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| 出版者 | ||||||
| 出版者 | Springer | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0167-6369 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s10661-012-3045-7 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.springerlink.com/ | |||||
| 関連名称 | http://www.springerlink.com/ | |||||
