SharePoint
Aide
IRSN, Institut de radioprotection et de sûreté nucléaire

Search our site :

ok

Contact us :

ok
En Fr

Enhancing Nuclear Safety


Research

Publications

Radon in thermal spas : a source of exposure to natural radiation.

R. Améon

radioprotection, vol.38, n°2, 201-215

Document type > *Article de revue

Keywords > environmental radon studies, measuring method, radon

Research Unit > IRSN/DEI/SARG/LERAR

Authors > AMEON-GOUGEON Roselyne

Publication Date > 05/07/2003

Summary

It is a widely recognized fact that 222Rn is the prime source of exposure to natural radiation as far as the population as a whole is concerned. The European Community has identified some groups of employees to be exposed to natural radiation in its 1996 Euratom directive. Such groups include people who work more particularly in thermal spas. Average Rn-levels, ranging from hundred to several tens of thousands becquerel per liter, are found in thermal groundwater. The gazeous character of 222Rn and its slight solubility lead it to desorb easily from water on coming in contact with the air. The Rn concentration in the air of spas depends on a combination of 2 factors : de-emanation of radon front water and ventilation. The average Rn activity concentration values cover a wide range, depending on the different occupationally-defined site. The highest values are found in water therapy rooms (-kBq m-3) technical installations and thermal gallery (op to 102 kBq m-3 ). Foreign estimations of the annual occupational dose to the staff show that radon exposure can achieve several ten millisievert. The few French studies made on this subject confirm those high values of effective dose received by workers. It is necessary, therefore, to consider radon as an importante source occupational exposure in thermal spas.

Close

Send to a friend

The information you provide in this page are single use only and will not be saved.
* Required fields

Recipient's email:*  

Sign with your name:* 

Type your email address:*   

Add a message :

Do you want to receive a copy of this email?

Send

Cancel

Close

WP_IMPRIMER_TITLE

WP_IMPRIMER_MESSAGE

Back

Ok