Level, distribution and sources of plutonium in the coastal areas of China | |
Zhang, Weichao1,4; Hou, Xiaolin1,2,3,5 | |
通讯作者 | Hou, Xiaolin(xiho@dtu.dk) |
2019-09-01 | |
发表期刊 | CHEMOSPHERE |
ISSN | 0045-6535 |
卷号 | 230页码:587-595 |
摘要 | Plutonium is an important radioactive element in view of its biological toxicity and environmental impact. The two most important isotopes of plutonium, Pu-239 and Pu-240, in the surface soil from the coastal area of China were determined using radiochemical separation combined with inductively coupled plasma mass spectrometry (ICP-MS) measurement. The average of the measured Pu-240/Pu-239 atomic ratios in all these samples is 0.186 +/- 0.021, which is in good agreement with the ratio of global fallout of the nuclear weapons tests. This indicates that the major source of plutonium in this region is global fallout, and there is no measurable release of plutonium from any nuclear power plant along the coast of China. The Pu-239(,240) concentrations in all 71 soil samples range from 0.002 mBq/g to 0.670 mBq/g, which fall in the range of the reported values in the background area not directly influenced by nuclear activities. The anthropogenic disturbance of sampling sites, vegetation coverage of land, precipitation rate and organic substance content and erosion of soil have significant influence on the level of plutonium in the surface soil. (C) 2019 Elsevier Ltd. All rights reserved. |
关键词 | Plutonium isotopes Source term of plutonium Spatial distribution Environmental impact Coastal areas of China |
DOI | 10.1016/j.chemosphere.2019.05.094 |
关键词[WOS] | GLOBAL FALLOUT PU ; VERTICAL DISTRIBUTIONS ; LACUSTRINE SEDIMENTS ; CHERNOBYL ACCIDENT ; ICP-MS ; ISOTOPES ; CS-137 ; SOIL ; PU-240 ; DEPOSITION |
收录类别 | SCI ; SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[11605206] ; National Natural Science Foundation of China[11875261] ; National Natural Science Foundation of China[91643206] ; National Natural Science Foundation of China[41603125] ; Ministry of Science and Technology of China[2015FY110800] ; Chinese Academy of Sciences[132B61KYSB20180003] ; National Research Program for Key Issues in Air Pollution Control, China[DQGG0105-02] |
WOS研究方向 | Environmental Sciences & Ecology |
项目资助者 | National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Chinese Academy of Sciences ; National Research Program for Key Issues in Air Pollution Control, China |
WOS类目 | Environmental Sciences |
WOS记录号 | WOS:000471736000062 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/13803 |
专题 | 加速器质谱中心 第四纪科学与全球变化卓越创新中心 |
通讯作者 | Hou, Xiaolin |
作者单位 | 1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian AMS Ctr,Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 2.Tech Univ Denmark, DTU Nutech, Ctr Nucl Technol, DK-4000 Roskilde, Denmark 3.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Shandong, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Weichao,Hou, Xiaolin. Level, distribution and sources of plutonium in the coastal areas of China[J]. CHEMOSPHERE,2019,230:587-595. |
APA | Zhang, Weichao,&Hou, Xiaolin.(2019).Level, distribution and sources of plutonium in the coastal areas of China.CHEMOSPHERE,230,587-595. |
MLA | Zhang, Weichao,et al."Level, distribution and sources of plutonium in the coastal areas of China".CHEMOSPHERE 230(2019):587-595. |
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