Reasons for Elevated Radon Levels Inside the Building in Divača

Žvab, P.; Vaupotič, Janja; Dolenec, Tadej

doi:10.5474/geologija.2006.029

Cited by 8 publications

(1 citation statement)

References 8 publications

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“…Elevated indoor radon levels may also be found over carbonates [156][157][158]. Generally, carbonates have a low content of uranium/radium, but the presence of the terra rossa soil (possibly enriched in uranium and with high radon emanation) and karstic phenomena (cracks and fissures) facilitate radon migration and thus enhance its entry into a house [158][159][160]. Peake [157] reported for Wisconsin, USA even higher values in 212 homes over carbonates (167 ± 174 Bq m -3 ) than in 119 homes over granite (155 ± 181 Bq m -3 ).…”

Section: Radon and Thoron Sources 41 Groundmentioning

confidence: 99%

Radon and Its Short-Lived Products in Indoor Air: Present Status and Perspectives

Vaupotič

2024

Sustainability

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Initially, basic equations are given to express the activity concentrations and concentrations of potential α-energies of radon (222Rn) and thoron (220Tn) and their short-lived products in indoor air. The appearance of short-lived products as a radioactive aerosol is shown, and the fraction of the unattached products is particularly exposed, a key datum in radon dosimetry. This fundamental part is followed by giving the sources of radon and thoron indoors, and thus, their products, and displaying the dependence of their levels on the ground characteristics, building material and practice, and living–working habits of residents. Substantial hourly, daily, and seasonal changes in their activity concentrations are reviewed, as influenced by meteorological parameters (air temperature, pressure, humidity, and wind speed) and human activity (either by ventilation, air conditioning and air filtration, or by generating aerosol particles). The role of the aerosol particle concentration and their size distribution in the dynamics of radon products in indoor air has been elucidated, focusing on the fraction of unattached products. Intensifying combined monitoring of radon short-lived products and background aerosol would improve radon dosimetry approaches in field and laboratory experiments. A profound knowledge of the influence of meteorological parameters and human activities on the dynamics of the behaviour of radon and thoron accompanied by their products in the air is a prerequisite to managing sustainable indoor air quality and human health.

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Section: Radon and Thoron Sources 41 Groundmentioning

confidence: 99%

Radon and Its Short-Lived Products in Indoor Air: Present Status and Perspectives

Vaupotič

2024

Sustainability

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Comparison of Approaches in Slovenia and Kazakhstan in Managing Exposure to Radon

Kobal

Vaupotič

Gregorič

et al. 2014

Uranium - Past and Future Challenges

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Comparison of various methods of estimating radon dose at underground workplaces in wineries

Vaupotič

2008

Radiat Environ Biophys

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Levels of radon were surveyed in the air at underground workplaces of eight major Slovenian wineries. Geometric mean and geometric standard deviation values, respectively, obtained with different devices were 81 Bq m(-3) and 2.3 with alpha scintillation cells, 114 Bq m(-3) and 2.0 by exposing etched track detectors for 1-5 months, and 183 Bq m(-3) and 2.6 from 1-4-weeks continuous measurements. The equilibrium factor was 0.25-0.67, and the unattached fraction of radon short-lived decay products was in the range 0.09-0.20. Effective doses were calculated and compared based on radon data obtained with different techniques.

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Reasons for Elevated Radon Levels Inside the Building in Divača

Cited by 8 publications

References 8 publications

Radon and Its Short-Lived Products in Indoor Air: Present Status and Perspectives

Radon and Its Short-Lived Products in Indoor Air: Present Status and Perspectives

Comparison of Approaches in Slovenia and Kazakhstan in Managing Exposure to Radon

Comparison of various methods of estimating radon dose at underground workplaces in wineries

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