Permeability as an important parameter for radon risk classification of foundation soils

Abstract

Permeability of soils and rocks for gases is one of the main parameters for final radon risk classification of building
sites. For the improvement of the method for radon risk classification it is recommended to complete in situ
measurements of permeability and/or results derived from grain size analysis by an expert description of parameters
of soils and rocks and their changes in vertical profile.