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Study of different factors which can explain the radon exhalation potential of soils; Recherche de differents parametres caracterisant le potentiel d`exhalation en radon des sols

Abstract

Radon is a natural radioactive gas belonging to the Uranium-238 chain, which is present in the earth crust and produced by the disintegration of radium-226. It is considered as the major source of radiological exposure of man to natural radiation because it can accumulate in indoor atmosphere. So, this health risk must be take into account.The aim of this study is to find some tools in order to identify high radon level area. The first part of this study has consisted in measurement of radon emission from different not sufficient for the estimation of the radon exhalation potential in a given area. In the second part of this work, we have studied the variations of in situ radon concentration as a function of different geological and pedologic parameters of the site. With the results obtained, we have determined the data which have to be considered, and the methodology to be applied for the determination of the radon exhalation of a given area. Furthermore, by the mean of numerical simulations (TRACH Model), it was possible to know the scale of radon flux variation in a given point versus the hydric state of the ground and thus the permeability: these parameters are  More>>
Authors:
Publication Date:
Oct 27, 1997
Product Type:
Technical Report
Report Number:
CEA-R-5795
Reference Number:
SCA: 540230; 540130; PA: AIX-30:039733; EDB-99:093515; SN: 99002142649
Resource Relation:
Other Information: PBD: 27 Oct 1997
Subject:
54 ENVIRONMENTAL SCIENCES; AIR POLLUTION; FRANCE; HOUSES; INDOOR AIR CONTAMINATION; NATURAL RADIOACTIVITY; PUBLIC HEALTH; RADON; ROCKS; SOILS
OSTI ID:
681719
Research Organizations:
CEA, 91 - Fontenay-aux-Roses (France). Dept. de Protection de l`Environnement; Universite de Franche-Comte (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
Other: ON: DE99632229; TRN: FR9805428039733
Availability:
INIS; OSTI as DE99632229
Submitting Site:
FRN
Size:
231 p.
Announcement Date:

Citation Formats

Demongeot, St. Study of different factors which can explain the radon exhalation potential of soils; Recherche de differents parametres caracterisant le potentiel d`exhalation en radon des sols. France: N. p., 1997. Web.
Demongeot, St. Study of different factors which can explain the radon exhalation potential of soils; Recherche de differents parametres caracterisant le potentiel d`exhalation en radon des sols. France.
Demongeot, St. 1997. "Study of different factors which can explain the radon exhalation potential of soils; Recherche de differents parametres caracterisant le potentiel d`exhalation en radon des sols." France.
@misc{etde_681719,
title = {Study of different factors which can explain the radon exhalation potential of soils; Recherche de differents parametres caracterisant le potentiel d`exhalation en radon des sols}
author = {Demongeot, St}
abstractNote = {Radon is a natural radioactive gas belonging to the Uranium-238 chain, which is present in the earth crust and produced by the disintegration of radium-226. It is considered as the major source of radiological exposure of man to natural radiation because it can accumulate in indoor atmosphere. So, this health risk must be take into account.The aim of this study is to find some tools in order to identify high radon level area. The first part of this study has consisted in measurement of radon emission from different not sufficient for the estimation of the radon exhalation potential in a given area. In the second part of this work, we have studied the variations of in situ radon concentration as a function of different geological and pedologic parameters of the site. With the results obtained, we have determined the data which have to be considered, and the methodology to be applied for the determination of the radon exhalation of a given area. Furthermore, by the mean of numerical simulations (TRACH Model), it was possible to know the scale of radon flux variation in a given point versus the hydric state of the ground and thus the permeability: these parameters are not easy to measure because of their variabilities with time. The methodology ESPERAS (EStimation du Potential d`Exhalation en Radon des Sols) developed during this work was applied first, at a local scale and then to greater area. The values estimated by this way are in a good agreement with the results of measurements. So, we can determine the areas which are affected by high radon levels. (author)}
place = {France}
year = {1997}
month = {Oct}
}