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Level, distribution and sources of plutonium in the coastal areas of China

文献类型：期刊论文

作者Zhang, Weichao1,3; Hou, Xiaolin2,3,4,5
刊名CHEMOSPHERE
出版日期2019-09-01
卷号230页码:587-595
关键词Plutonium isotopes Source term of plutonium Spatial distribution Environmental impact Coastal areas of China
ISSN号0045-6535
DOI10.1016/j.chemosphere.2019.05.094
通讯作者Hou, Xiaolin(xiho@dtu.dk)
英文摘要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.
WOS关键词GLOBAL FALLOUT PU ; VERTICAL DISTRIBUTIONS ; LACUSTRINE SEDIMENTS ; CHERNOBYL ACCIDENT ; ICP-MS ; ISOTOPES ; CS-137 ; SOIL ; PU-240 ; DEPOSITION
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
语种英语
WOS记录号WOS:000471736000062
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构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
源URL[http://ir.ieecas.cn/handle/361006/13802]  
专题地球环境研究所_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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Tech Univ Denmark, DTU Nutech, Ctr Nucl Technol, DK-4000 Roskilde, Denmark
3.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
4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, 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.

入库方式： OAI收割

来源：地球环境研究所

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