The Effect of Temperature Gradients on the Exhalation Rate of Radon Generated by Building Materials


There is increasing interest in indoor air quality studies. The effect of exhaled radon from soil, walls and ceilings has well-known consequences on human health, so the importance of modelling has been established. The present paper examines radon exhalation, on the one hand, only in the case of diffusion and, on the other hand, diffusion and advection. Comparing the results of the two test types, we can determine how significant the effect of temperature gradients on radon exhalation is. For a broader investigation, we performed the parametric tests on several types of material, wall thickness and radon concentration.

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  • [1] Chen J., Rahman N. M., Abu Atiya I.: Radon exhalation from building materials for decorative use. Journal of Environmental Radioactivity 101/4. (2010) 17–22.

  • [2] Apostu A.: Radon transport through building materials. PhD Thesis, Babeș–Bolyai Bolyai University, Cluj-Napoca, Romania, 2011.

  • [3] Font Guiteras L.: Radon generation, entry and accumulation indoors. PhD Thesis, Universitat Autònoma de Barcelona, Spain, 1997.


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