Concentrations of 210Po in fish and shellfish from southern region of Japan and evaluation of 210Po intake from seafood for Japanese people

被引:3
作者
Momoshima, N. [1 ]
Nakao, H. [2 ]
Sugihara, S. [1 ]
机构
[1] Kyushu Univ, Radioisotope Ctr, Higashi Ku, Fukuoka 8128581, Japan
[2] Kyushu Univ, Grad Sch Sci, Higashi Ku, Fukuoka 8128581, Japan
关键词
Polonium; 210; Fish and shellfish; Phytoplankton; MARINE ORGANISMS; PB-210; SEA;
D O I
10.1524/ract.2011.1893
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Concentrations of Po-210 in fish and shellfish, mostly collected from southern region of Japan were analyzed. Values ranged from 0.2 to 229 Bq/kg fresh weight and higher concentrations were observed in samples analyzed with viscera. Intake of Po-210 through fish and shellfish was evaluated at different Japanese cities based on statistical consumption data. Phytoplankton, Heterosigma akashiwo was collected during a harmful algal bloom and Po-210 was analyzed. The phytoplankton occupied only 4.4% of Po-210 in seawater and a large fraction of Po-210 was observed in the particulate form.
引用
收藏
页码:45 / 49
页数:5
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