Scientific Basis for Indoor Radon Atlas

Introduction There are different national approaches to the analysis, processing and presentation of indoor radon data. Some of them were presented at the international workshop in Lausanne (IGAR 2005). EU radon surveys were compiled in JRC Ispra summary report (Dubois 2005). Swiss experience on indoor radon data treatment and mapping using geostatistical approaches (both interpolations and simulations) was presented at several international conferences and Swiss radon days since geostatistical congress 2000. The present paper reviews and presents the discussion on some fundamental problems and proposes a scientific basis for indoor radon data analysis, modelling and mapping, i.e. for the preparation of indoor radon atlas. First, let us mention some stylized facts about indoor radon data with illustrations: • Indoor radon data are very clustered in geographical space. Therefore, naïve statistics does not work.