Radon-222 measurements in a uranium-prospecting area in Brazil

被引：12
|
作者：
Binns, DAC
Figueiredo, N
Melo, VP
Gouvea, VA
机构：
[1] Service de Protecao Radiologica, Inst. de Engenharia Nuclear/CNEN, Lat. Amer. Radon Regl. C., Rio de Janeiro 21945-970, Ilha do Fundão
[2] Complexe Indust. de Pocos de C., Uranio do Brazil, Poços de Caldas
来源：
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 1998年 / 38卷 / 02期
关键词：
D O I：
10.1016/S0265-931X(97)88740-1
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Radon-222 concentrations were determined in about 100 measuring points in a uranium-prospecting area in the eastern part of Brazil. The single measurement data in open areas, identified as environmental points, present values between 4 +/- 2 Bq m(-3) and 404 +/- 16 Bq m(-3), with a mean value of 69 +/- 6 Bq m(-3). Comparing the mean values for each measuring site, the values obtained are between 15 +/- 2 Bq m(-3) in the store room for mineral samples and 245 +/- 7 Bq m(-3) for the central point AN08 of the prospective mine. Makrofol SSNTD was used for the measurements and exposed for 120 day-alternated periods from May 1992 to May 1994. (C) 1998 Elsevier Science Ltd.
引用
收藏
页码：249 / 254
页数：6
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