Temporal and spatial variations of 137Cs in the waters off a nuclear fuel reprocessing facility in Rokkasho, Aomori, Japan

被引：16
|
作者：
Nakanishi, Takahiro [1 ]
Aono, Tatsuo [1 ]
Yamada, Masatoshi [1 ]
Kusakabe, Masashi [1 ]
机构：
[1] Natl Inst Radiol Sci, Nakaminato Lab Marine Radioecol, Ibaraki 3111202, Japan
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2010年 / 283卷 / 03期
关键词：
Cs-137; Seawater; Vertical distribution; Western North Pacific; RADIONUCLIDES; OCEAN; DISTRIBUTIONS; PARTICLES; ISOTOPES; CESIUM;
D O I：
10.1007/s10967-009-0422-y
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Five survey cruises were carried out from 2004 to 2007 to determine Cs-137 concentrations in the water columns off Rokkasho Village, Aomori Prefecture, Japan, where the spent nuclear fuel reprocessing plant of Japan Nuclear Fuel Ltd has been undergoing test operation since March 2006. Seawater samples were collected with a large volume in situ filtration and concentration system at different depths in the water column. Cs-137 in particulate form could not be detected in the survey area. Dissolved Cs-137 showed temporal variation, especially in the surface water. Based on the results, it was concluded that no observable Cs-137 contamination was present in the investigated area. The distribution of Cs-137 concentrations was influenced by the mixing between the Tsugaru and Oyashio Currents.
引用
收藏
页码：831 / 838
页数：8
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