Thoron, radon and air ions spatial distribution in indoor air
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AuthorsKolarž, Predrag M.
Stojanovska, Zdenka A.
Žunić, Zora S.
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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.
Keywords:Radon / Thoron / Thoron diffusion length / Thoron diffusion constant / Air ion concentrations
Source:Journal of Environmental Radioactivity, 2017, 173, 70-74
- Bilateral Slovenia - Serbia project of scientific cooperation in Serbia [451-03-1251/2012-09/08]
- An integral study to identify the regional genetic and environmental risk factors for the common noncommunicable diseases in the human population of Serbia - INGEMA_S (RS-41028)
- Physics of collisions and photo processes in atomic, (bio)molecular and nanosized systems (RS-171020)
- Bilateral Slovenia Serbia project of scientific cooperation in Slovenia [BI-RS/12-13-008]
- 5th Biennial Meeting on Terrestrial Radioisotopes in Environment / International Conference on Environmental Protection (TREICEP), May, 2016, Veszprem, Hungary