THE BEHAVIOR OF CHERNOBYL CS-137, CS-134 AND RU-106 IN UNDISTURBED SOIL - IMPLICATIONS FOR EXTERNAL RADIATION

被引：60

作者：

ANDERSSON, KG

ROED, J

机构：

[1] Risø National Laboratory

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 1994年 / 22卷 / 03期

关键词：

D O I：

10.1016/0265-931X(94)90080-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Following the Chernobyl accident, deposits of Cs-137, Cs-134 and Ru-106 on exposed surfaces in urban areas were found to be the major contributors to the external radiation dose. The fixation of these radionuclides in soils was investigated by the determination of their vertical distribution in and through sequential extractions. Four years after the Chernobyl accident it was found that most of the caesium remained firmly fixed in the topmost 2 cm. In the deeper layers of the soil it was less strongly bound. The ruthenium was found to be less strongly bound than the caesium and had penetrated a little deeper. The study indicates the need for countermeasures if the long-term radiation dose to the local populace is to be reduced significantly.

引用

页码：183 / 196

页数：14

共 21 条

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