Thoron, radon and air ions spatial distribution in indoor air

被引：11

作者：

Kolarz, Predrag ^{[1
]}

Vaupotic, Janja ^{[2
]}

Kobal, Ivan ^{[2
]}

Ujic, Predrag ^{[3
]}

Stojanovska, Zdenka ^{[4
]}

Zunic, Zora S. ^{[3
]}

机构：

[1] Inst Phys, Belgrade 11080, Serbia

[2] Jozef Stefan Inst, Ljubljana 1000, Slovenia

[3] Univ Belgrade, Inst Nucl Sci Vinca, Belgrade 11000, Serbia

[4] Goce Delcev Univ, Fac Med Sci, Stip 2000, Macedonia

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2017年 / 173卷

关键词：

Radon; Thoron; Thoron diffusion length; Thoron diffusion constant; Air ion concentrations; LONG-TERM MEASUREMENTS; SERBIAN SCHOOLS; RN-220; EXPOSURE; KOSOVO;

D O I：

10.1016/j.jenvrad.2016.11.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Spatial distribution of radioactive gasses thoron (Tn) and radon (Rn) in indoor air of 9 houses mostly during winter period of 2013 has been studied. According to properties of alpha decay of both elements, air ionization was also measured. Simultaneous continual measurements using three Rn/an and three air-ion active instruments deployed on to three different distances from the wall surface have shown various outcomes. It has turned out that Tn and air ions concentrations decrease with the distance increase, while Rn remained uniformly distributed. Exponential fittings function for Tn variation with distance was used for the diffusion length and constant as well as the exhalation rate determination. The obtained values were similar with experimental data reported in the literature. Concentrations of air ions were found to be in relation with Rn and obvious, but to a lesser extent, with Tn. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：70 / 74

页数：5

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