Spatial multi-criteria approaches for estimating geogenic radon hazard index.

The geogenic radon hazard index (GRHI) map plays a crucial role in evaluating radon exposure risks. The construction of this map requires a comprehensive analysis of radon levels in soil gas and some critical factors, such as uranium content in bedrock, soil permeability, and geological inhomogeneities. In this context, the spatial multi-criteria decision analysis is proposed with the aim of combining various key geological parameters and identifying high-potential radon areas.