DOI: 10.1016/j.marpolbul.2018.03.037
Scopus记录号: 2-s2.0-85044442008
论文题名: Sources of plutonium isotopes and 137Cs in coastal seawaters of Liaodong Bay and Bohai Strait, China and its environmental implications
作者: Hao Y. ; Xu Y. ; Pan S. ; Song X. ; Zhang K. ; Guo H. ; Gu Z.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 130 起始页码: 240
结束页码: 248
语种: 英语
英文关键词: 137Cs
; 239+240Pu
; 240Pu/239Pu atom ratio
; Bohai Strait
; Liaodong Bay
; Surface seawater
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: In order to investigate the sources of plutonium in seawaters of Liaodong Bay and Bohai Strait, China, surface seawater samples were collected and analyzed for 239+240Pu and 137Cs by radiochemical separation combined with ICP-MS and γ-spectrometry, respectively. A large variation of 239+240Pu activities was observed, ranging from 1.993 to 29.677 mBq/m3 in the Liaodong Bay and from 0.932 to 10.183 mBq/m3 in the Bohai Strait. 137Cs activities showed little variation between the investigated locations, which was attributed to the different behavior characteristics of 239+240Pu and 137Cs in seawaters. The 240Pu/239Pu atom ratios showed a significant variation between the Liaodong Bay (0.185) and Bohai Strait (0.225), indicating that Pu derived from the Pacific Proving Grounds might have been transported to the Bohai Strait but not yet to the Liaodong Bay, which could further provide valuable reference for evaluating the seawater exchange cycle between the Bohai Sea and Yellow Sea. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88307
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: The Key Laboratory of Coastal and Island Development of Ministry of Education, School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, China; State Key Laboratory of Pollution Control & Resources Reuse, School of the Environment, Nanjing University, Nanjing, China; College of Environmental Science and Engineering, Yangzhou University, Yangzhou, China
Recommended Citation:
Hao Y.,Xu Y.,Pan S.,et al. Sources of plutonium isotopes and 137Cs in coastal seawaters of Liaodong Bay and Bohai Strait, China and its environmental implications[J]. Marine Pollution Bulletin,2018-01-01,130