Radon and thoron daughter concentrations in Romanian houses

被引：0
|
作者：
Milu, C [1 ]
Gheorghe, R [1 ]
机构：
[1] Inst Publ Hlth, Bucharest 76256 35, Romania
来源：
RADON AND THORON IN THE HUMAN ENVIRONMENT | 1998年
关键词：
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The indoor and outdoor radon and thoron daughter concentrations were determined in 119 Romanian dwellings, by air sampling on a membrane Biter, followed by repeated gross - alpha countings. Several constructive and physical parameters have been recorded Knowing the radon and thoron daughters concentrations, the Potential Alpha Energy Concentration( PAEC), the Equilibrium Equivalent Concentration (EEC), the equilibrium factor(F) and the effective dose for adults (ED) have been calculated. EEC ( Rn) experimental values for indoor exposure ranged from 3 to 130 Bq/m(3), with a mean value of 22 Bq. m(-3). The main observed influencing parameters were. ventilation rate, type of building material and indoor relative humidity. It was also pointed out that the contribution of the thoron daughters to the total ED is about 20 %. The results of the concentrations within an experimental house with a part of nails from phosphogypsum are presented.
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页码：403 / 406
页数：4
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