Mapping of the geogenic radon potential in France to improve radon risk management: methodology and first application to region Bourgogne

被引:91
作者
Ielsch, G. [1 ]
Cushing, M. E. [1 ]
Combes, Ph. [2 ]
Cuney, M. [3 ,4 ]
机构
[1] Inst Radioprotect & Surete Nucl, DEI SARG BRN, F-92262 Fontenay Aux Roses, France
[2] Geologie Tecton Environm & Risques, GEOTER SAS, F-34830 Clapiers, France
[3] Univ Nancy 1, UMR G2R 7566, F-54506 Vandoeuvre Les Nancy, France
[4] Univ Nancy 1, CREGU, F-54506 Vandoeuvre Les Nancy, France
关键词
Radon mapping; Environment; Uranium; Radioactivity; Geology; INDOOR RADON; NEW-HAMPSHIRE; SOIL-GAS; GERMANY; FAULTS; GEOCHEMISTRY; INFORMATION; PREDICTION; CALIFORNIA; ANOMALIES;
D O I
10.1016/j.jenvrad.2010.04.006
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In order to improve regulatory tools for radon risk management in France, a harmonised methodology to derive a single map of the geogenic radon potential has been developed. This approach consists of determining the capacity of the geological units to produce radon and to facilitate its transfer to the atmosphere, based on the interpretation of existing geological data. This approach is firstly based on a classification of the geological units according to their uranium (U) content, to create a radon source potential map. This initial map is then improved by taking into account the main additional parameters, such as fault lines, which control the preferential pathways of radon through the ground and which can increase the radon levels in soils. The implementation of this methodology to the whole French territory is currently in progress. We present here the results obtained in one region (Bourgogne, Massif Central) which displays significant variations of the geogenic radon potential. The map obtained leads to a more precise zoning than the scale of the existing map of radon priority areas currently based solely on administrative boundaries. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:813 / 820
页数:8
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