Modelling multiple radon entry and transport in a domestic dwelling

With a commercial program, BREEZE, a model was developed to study the radon entry and migration in a domestic house with a cellar. Its robustness was tested by examining the modelʹs function for a range of inputs and comparing calculated results with a set of data measured in a real house. Also modelled was a mechanical ventilation system in the cellar, hence the cellar ventilation was investigated as a radon remedial measure. The modelling carried out in the research suggests that careful attention is needed in radon mitigation in such houses due to the functional and structural characteristics of cellars. It reveals that cellar ventilation can be an effective solution to indoor radon problems in such houses. It also shows that a simple model can represent a complex problem with a certain degree of accuracy.