Ra in geothermal and bottled mineral waters of Hungary |
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Authors: | E Baradcs I Hunyadi Z Dezs I Csige P Szerbin |
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Institution: | a Institute of Nuclear Research of the Hungarian Academy of Sciences, PO Box 51, H-4001 Debrecen, Hungary b Isotope Laboratory, Debrecen University, PO Box 8, H-4010 Debrecen, Hungary c J. Curie National Research Institute for Radiobiology and Radiohygieny, PO Box 101, H-1775 Budapest, Hungary |
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Abstract: | Geothermal waters have been used on a large scale for bathing, drinking and medical purposes, while the consumption of bottled mineral waters is increasing. In this work, radon and radium activity concentrations of thermal and bottled mineral waters, originating from different regions of Hungary, were studied by different radioanalytical methods. It was found that the thermal springs, which supply the world famous baths of Budapest along the right riverside of the Danube, have high 222Rn and 226Ra activity concentration: up to about 100 and 1 kBqm?3, respectively. The radium content of some investigated geothermal waters found in the NE region of the Great Hungarian Plain is even higher: up to several kBqm?3. The 226Ra content of bottled mineral waters, commercially available in Hungary, was determined by gamma-spectrometric method, applying radiochemical separation. The highest value exceeded 2 kBqm?3 in the case of the Apenta mineral water, which is a popular brand in Hungary, as well as in Europe and North America. |
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Keywords: | 222Rn 226Ra Geothermal waters Bottled mineral waters Radamon radon monitor Gamma-spectrometry Emanation method |
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