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Estimater av radonrisiko oppnås ved å studere forholdet mellom innendørs radonmålinger og geologi, og bruke dette til å etablere en metode å forutsi radon effekten for geologiske klasser. Tre datasett er brukt: en nasjonal database med innendørsmålinger av radon, en nasjonal database for berggrunnsgeologi, og en nasjonal database for løsmassegeologi, kvartærgeologisk avsetning. Se produktark og produktspesifikasjon for mer utfyllende informasjon. Oppløsning på dataene er ikke bedre enn 1:50.000 - dvs. at dataene ikke kan brukes på enkelttomter eller mindre boligfelt.
Geologi Inspire NSDI data Norway Digital Geodata Act dataNorgeNo Modellbaserte vegprosjekter Felles datakatalog Geologi Norway Radon susceptibility hazard Alum slate NGU Norwegian Radiation Protection Authority (NRPA) National geoscientificInformation
The national radon susceptibility data set shows areas in Norway that might be more prone to radon (or: have greater radon risk) than others. In areas marked with high susceptibility, it is estimated that at least 20 % of the homes (houses/residences) have radon concentrations above the upper recommended limit of 200 Bq/m3 at ground floor level. The data set is based on indoor measurements of radon (from NRPA database) and knowledge of geological conditions (databases of bedrock and superficial deposits at NGU). In some areas in Norway radon has been measured in many houses, whereas in other areas there are few available measurements. The data set was developed by statistically considering how the proportion of houses that exhibit high radon concentrations may relate to the local geology, and transferring this knowledge to other areas with similar geological conditions.
Radon susceptibility