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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/nhess-2019-102
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-2019-102
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 20 May 2019

Submitted as: research article | 20 May 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).

First steps towards an All-European Indoor Radon Map

Javier Elío1, Giorgia Cinelli2, Peter Bossew3, José Luis Gutiérrez-Villanueva4, Tore Tollefsen2, Marc De Cort2, Alessio Nogarotto5, and Roberto Braga5 Javier Elío et al.
  • 1Geology, School of Natural Sciences, Trinity College, Dublin 2, Ireland
  • 2European Commission, Joint Research Centre (JRC), Ispra, Italy
  • 3German Federal Office for Radiation Protection, Germany
  • 4Radonova laboratories AB, Uppsala, Sweden
  • 5Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna

Abstract. A hypothetical All-European Indoor Radon Map has been developed using summary statistics estimated from 1.2 million indoor radon samples. In this study we have used the arithmetic mean (AM) over grid cells of 10 km × 10 km to predict a mean indoor radon concentration at ground floor level in the grid cells where no or few data are available (N < 30). Four interpolation techniques have been tested: inverse distance weighted (IDW); ordinary kriging (OK); collocated cokriging with uranium concentration as secondary variable (CoCK); and regression kriging with topsoil geochemistry and bedrock geology as secondary variables (RK). Cross-validation exercises have been carried out to assess the uncertainties associated with each method. Of the four methods tested, RK has proved to be the best one for predicting mean indoor radon concentrations, and by combining the RK predictions with the AM of the grids with 30 or more measurements, an All-European Indoor Radon Map has been produced. This map represents the first step towards a European radon exposure, and further on a radon dose map.

Javier Elío et al.
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Status: open (until 10 Sep 2019)
Status: open (until 10 Sep 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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  • RC1: 'accept', Anonymous Referee #1, 04 Jun 2019 Printer-friendly Version
Javier Elío et al.
Javier Elío et al.
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