Internal exposure from building materials exhaling 222Rn and 220Rn as compared to external exposure due to their natural radioactivity content

被引:58
作者
Ujic, Predrag [1 ]
Celikovic, Igor [1 ]
Kandic, Aleksandar [1 ]
Vukanac, Ivana [1 ]
Durasevic, Mirjana [1 ]
Dragosavac, Dusan [1 ]
Zunic, Zora S. [1 ]
机构
[1] Inst Nucl Sci Vinca, Belgrade 11001, Serbia
关键词
Radon exhalation; Thoron exhalation; Exposure; Building materials; Radionuclides; RADON EXHALATION RATE; THORON;
D O I
10.1016/j.apradiso.2009.10.003
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The main scope of this paper is to point out the importance of introducing radon and thoron exhalation measurements from building materials in the regulating frame. Currently (2009), such a regulation of this kind of exposure is not explicitly included in the Serbian regulating network. To this end, this work reports concentration measurements of Ra-226, Th-232 and K-40 and radon and thoron exhalation rates from building materials used in Serbia. Following detailed analysis, it was noticed that both internal exposures to radon and/or thoron exhaling from building materials may exceed external exposures to their precursors contained therein. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:201 / 206
页数:6
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