Marine anthropogenic radiotracers in the Southern Hemisphere: New sampling and analytical strategies

被引:30
作者
Levy, I. [1 ]
Povinec, P. P. [2 ]
Aoyama, M. [3 ]
Hirose, K. [3 ]
Sanchez-Cabeza, J. A. [4 ,6 ]
Comanducci, J-F [1 ]
Gastaud, J. [1 ]
Eriksson, M. [1 ]
Hamajima, Y. [5 ]
Kim, C. S. [7 ]
Komura, K. [5 ]
Osvath, I. [1 ]
Roos, P. [8 ]
Yim, S. A. [7 ]
机构
[1] IAEA, Marine Environm Labs, MC-98000 Monaco, Monaco
[2] Comenius Univ, Fac Math Phys & Informat, SK-84248 Bratislava, Slovakia
[3] Meteorol Res Inst, Dept Geochem, Tsukuba, Ibaraki 3050052, Japan
[4] Univ Autonoma Barcelona, Inst Ciencia & Tecnol Ambientals, Bellaterra 08193, Spain
[5] Kanazawa Univ, Low Level Radioact Lab, Nomi, Ishikawa 9231224, Japan
[6] Dept Fis, Bellaterra 08193, Spain
[7] Korea Inst Nucl Safety, Taejon 305336, South Korea
[8] Riso Natl Lab, DK-4000 Roskilde, Denmark
关键词
GAMMA-RAY SPECTROMETRY; MASS-SPECTROMETRY; PACIFIC-OCEAN; FALLOUT RADIONUCLIDES; PLUTONIUM ISOTOPES; SURFACE-WATER; INDIAN OCEANS; PU ISOTOPES; CS-137; SEAWATER;
D O I
10.1016/j.pocean.2010.12.012
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
The Japan Agency for Marine Earth Science and Technology conducted in 2003-2004 the Blue Earth Global Expedition (BEAGLE2003) around the Southern Hemisphere Oceans, which was a rare opportunity to collect many seawater samples for anthropogenic radionuclide studies. We describe here sampling and analytical methodologies based on radiochemical separations of Cs and Pu from seawater, as well as radiometric and mass spectrometry measurements. Several laboratories took part in radionuclide analyses using different techniques. The intercomparison exercises and analyses of certified reference materials showed a reasonable agreement between the participating laboratories. The obtained data on the distribution of Cs-137 and plutonium isotopes in seawater represent the most comprehensive results available for the Southern Hemisphere Oceans. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:120 / 133
页数:14
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