GEOGRAPHIC AND VERTICAL-DISTRIBUTION OF CS-137 IN SOILS IN CANADA

被引：56

作者：

BLAGOEVA, R ^{[1
]}

ZIKOVSKY, L ^{[1
]}

机构：

[1] ECOLE POLYTECH,MONTREAL,PQ H3C 3A7,CANADA

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 1995年 / 27卷 / 03期

关键词：

D O I：

10.1016/0265-931X(94)00016-P

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Levels of Cs-137 from weapons fallout on non-cultivated soils in Quebec and in several northern sites elsewhere in Canada are presented. The activity of Cs-137 was measured at 33 sites. The superficial activity levels ranged from 701 to 5055 Bq/m(2) with an overall mean of 2513 +/- 1099 Bq/m(2). The activities were found to be approximately normally distributed. The Cs-137 deposition levels peaked in Quebec around 54 degrees north and they are correlated with precipitation rates. Their frequency distribution is closer to a normal rather than a lognormal distribution. The specific activities ranged from 0.2 to 212 Bq/kg with an overall mean of 38 +/- 52 Bq/kg.

引用

页码：269 / 274

页数：6

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