The distribution of 137Cs and 90Sr in the biomass of pine trees planted in 1987-1988 in the near zone of the Chernobyl nuclear power plant

被引：12
|
作者：
Buzinny, M [1 ]
Los', I [1 ]
Shepelevich, K [1 ]
机构：
[1] Acad Med Sci Ukraine, Res Ctr Radiat Med, UA-252050 Kiev, Ukraine
来源：
APPLIED RADIATION AND ISOTOPES | 2000年 / 52卷 / 04期
关键词：
Chernobyl; Cs-137; Sr-90; liquid scintillation counting; pine biomass; annual rings;
D O I：
10.1016/S0969-8043(99)00142-6
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
This paper presents the results of a study, carried out in 1996, of the distributions of Cs-137 and Sr-90 in the biomass of a new pine plantation, planted in 1987-1988, in the near field of the Chernobyl nuclear power plant. The maximum observed concentrations were 4.2 MBq kg(-1) for Cs-137 in the youngest needles and 1.1 MBq kg(-1) for 90Sr in the oldest needles. The estimation of the total absorbed doses in the different organs of the pine was also carried out, the observed doses were in the range 2 Gy yr(-1) to 16.8 Gy yr(-1); the lifetime dose for the needles (4 yr) was 44 Gy. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：905 / 910
页数：6
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