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Development of an indoor radon risk map of the Walloon region of Belgium, integrating geological information

TitoloDevelopment of an indoor radon risk map of the Walloon region of Belgium, integrating geological information
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2011
AutoriCinelli, Giorgia, Tondeur F., and Dehandschutter B.
RivistaEnvironmental Earth Sciences
Volume62
Paginazione809-819
Parole chiavealgorithm, Belgium, database, Geo-statistics, Geological information, geological mapping, Geology, geostatistics, indoor radon, Indoor radon concentrations, Log-normal distribution, Logarithmic mean, Maps, Normal distribution, Radon, Risk assessment, Risk mappings, Standard deviation, statistics, Walloon Brabant
Abstract

A radon risk map for the Walloon region of Belgium, based on the two databases available, has been calculated and is presented in this work. The data are organized into geological units. For each unit, an average logarithmic standard deviation is calculated, after correcting the higher variability of short term data. The region is divided with an 1-km grid. For each node, the local geological unit is determined, as well as the corresponding logarithmic standard deviation. The logarithmic mean is evaluated by smoothing the data belonging to the same geological unit as the node. Assuming a log-normal distribution, a map that shows for each node the predicted percentage of buildings with an indoor radon concentration above the Action level (400 Bq/m3) is constructed. This is the first radon risk map for this region that fully takes into account the geological information. © 2010 Springer-Verlag.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-79251598852&doi=10.1007%2fs12665-010-0568-5&partnerID=40&md5=9a097efd752f3667b5168f6e81c5d8d3
DOI10.1007/s12665-010-0568-5
Citation KeyCinelli2011809