Radon and Carbon-Dioxide in Drainage*
Géza Papp1 and Esther Tóth2
1Eötvös University, Atomic Physics Department
2Lauder School, RAD Lauder Labor, Budapest
Corresponding author: Esther Tóth
RAD Lauder Labor
Budapest, Budakeszi 48. H-1121, Hungary,
Tel: 275 22 41 ext 104 or 131
Fax: 275 26 10,
e-mail: et@rad.lauder.hu
CEJOEM 1997, 3:153-162
*The study was sponsored by the RAD Foundation,
by the OTKA T6703 and by the Research Fundation of the Hungarian Science
Academy.
Key words:
Radon, carbon-dioxide, homes, drainage, Mátraderecske
Abbreviations:
WHO – World Health Organization
IAEA – International Atomic Energy Agency
NRPB – National Radiation Protection Institute
RAD – Foundation for the Cancer Risk of Low Radiation
EC – European Community
Abstract:
An elevated level of radon (above 1000 Bq/m3) and more than 5 % of
carbon-dioxide were discovered in indoor air in two houses in a North East
Hungarian village in 1992. The problem in these dwellings was more or less
solved when the village decided to build a sewage system. It was clear
for the authors that the two gases would flow along the drain-pipes downwards
to the area where there were no radon or carbon-dioxide before. Our data
show that the radon could be used as a tracer gas to follow the motion
of the carbon-dioxide. Based on the values measured by us the local authorities
were convinced about the necessity of a mitigation action. The success
of mitigation was checked by measurements.
Received: 07 January 1997
Accepted: 08 May 1997
Posted: 29 November 1998 |
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