INFLUENCE OF VENTILATION RATE ON INDOOR RADON CONCENTRATION - THEORETICAL EVALUATION AND EXPERIMENTAL-DATA IN A TEST CHAMBER

This paper describes research activities performed to evaluate the different contribution of various sources to indoor radon levels. Underlying soil, building materials and outdoor air are considered as sources of indoor radon. The relative contributions of the three sources are estimated by applying experimental and theoretical techniques to a test chamber in which several parameters are monitored. The effects produced by the increase in ventilation rate are evaluated in terms of influence on indoor radon levels.