Modelling of radon concentration peaks in thermal spas: application to Polichnitos and Eftalou spas (Lesvos Island--Greece)

The Science of the Total Environment
Efstratios Vogiannis, Dimitrios Nikolopoulos

Abstract

A mathematical model was developed for the description of radon concentration peaks observed in thermal spas. Modelling was based on a pragmatic mix of estimation and measurement of involved physical parameters. The model utilised non-linear first order derivative mass balance differential equations. The equations were described and solved numerically by the use of specially developed computer codes. To apply and check the model, measurements were performed in two thermal spas in Greece (Polichnitos and Eftalou-Lesvos Island). Forty different measurement sets were collected to estimate the concentration variations of indoor-outdoor radon, radon in the entering thermal water, the ventilation rate, the bathtub surface and the bath volume. Turbulence and diffusive phenomena involved in radon concentration variations were attributed to a time varying contact interfacial area (equivalent area). This area was approximated with the use of a mathematical function. Other model parameters were estimated from the literature. Through numerical solving and use of non-linear statistics, the time variations of the equivalent area were estimated for every measurement set. Computationally applied non-linear uncertainty analysis showed less sens...Continue Reading

References

Apr 25, 2003·The Science of the Total Environment·Ll Font, C Baixeras
Mar 31, 2004·Environment International·E VogiannisC P Halvadakis
Jun 3, 2004·Journal of Environmental Radioactivity·Efstratios VogiannisC P Halvadakis
Jun 3, 2004·Journal of Environmental Radioactivity·Tadeusz Andrzej PrzylibskiBeata Kozłowska
Jul 29, 2004·Radiation Protection Dosimetry·Athanasios GeraniosAikaterini Karatzi
Sep 16, 2004·Radiation Protection Dosimetry·E VogiannisC P Halvadakis
Jun 1, 2005·Journal of Environmental Radioactivity·V RadolićJ Planinić
Nov 29, 2005·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·G SteinitzZ B Begin
Feb 18, 2006·Environment International·G ManicDragana Todorovic
Dec 26, 2006·The Science of the Total Environment·Dimitrios Nikolopoulos, Efstratios Vogiannis

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Citations

Dec 27, 2011·Journal of Environmental Monitoring : JEM·Dimitrios NikolopoulosAnna Louizi
Jan 16, 2018·Environmental Health and Toxicology·Ji Hyun ParkDae Ryong Kang
Mar 1, 2016·Annals of Occupational and Environmental Medicine·Ji Hyun ParkJinheum Kim
May 7, 2013·Environmental Science. Processes & Impacts·Dimitrios NikolopoulosAnna Louizi

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