Indoor - soil gas radon relationshipin the Central Bohemian Plutonic Complex

I Fojtíková I Fojtíková,I Barnet I Barnet,J Miksová J Miksová

doi:10.4401/ag-3183

I Fojtíková I Fojtíková, I Barnet I Barnet + Show 1 more

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https://doi.org/10.4401/ag-3183

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Abstract

The relationship of indoor radon measurements and radon in bedrock was studied in the granitoid Central Bohemian Plutonic Complex (CBPC). The indoor data were linked to vectorised geological and radon risk maps using the coordinates of particular dwellings. For each geological unit and rock type it was possible to calculate the statistical characteristics of indoor radon measurements. A clear relationship between indoor radon values and radon in bedrock was confirmed in all 7 districts situated on CBPC, where the study was performed.

Highlights

In the Czech Republic indoor radon measurements have been performed by the National Radiation Protection Institute (NRPI) since 1990
According to the uniform methodics used in the Czech Republic the soil gas radon data produced by the Czech Geological Survey and companies joined in the Association Radon Risk are comparable and reproducible and serve as a basis both for radon risk mapping and statistical characterization of geological units and rock types
The aim of the present study is to find a relationship between indoor and bedrock radon in the Central Bohemian Plutonic Complex (CBPC), Czech Republic

Summary

Introduction

The primary random distribution of detectors based on the demands of district and regional authorities was soon changed for goal – directed distribution according to geological radon risk maps in various scales (Miksová and Barnet, 2002). The soil gas radon database has been built up since 1990. According to the uniform methodics used in the Czech Republic the soil gas radon data produced by the Czech Geological Survey and companies joined in the Association Radon Risk are comparable and reproducible and serve as a basis both for radon risk mapping and statistical characterization of geological units and rock types. Up to now the database comprises the soil gas radon data from more than 8900 test sites (15 measurement each). Regional radon data are available in Austria (Friedmann, 2000), United Kingdom (Appleton and Miles, 2002), Germany (Siehl et al, 2000), Slovenia (Popit and Vaupotic, 2002), Luxembourg (Kies et al, 1996) and other countries

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