Radon in the spa of Bizovac |
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Authors: | J Planini? Z Faj B ?uveljak V Radoli? J Vaupoti? I Kobal |
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Institution: | (1) Facuty of Education, University of Osijek, POB 144, Osijek, Croatia;(2) J. Stefan Institute, Ljubljana, Slovenia |
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Abstract: | The radon concentration in the air and water of the Bizovac spa was measured by the Radhome silicon detector and the average values were obtained as 70 Bq/m3 in the indoor pool, 40 Bq/m3 in the hotel room, 135 Bq/m3 in the closed therapeutic bathroom, but the geothermal water had a Rn concentration of 25.3 kBq/m3 and the potable one 2.7 kBq/m3. The Rn transfer factor (f) from water to air in the indoor pool and therapeutic bathroom was 10 and 40 times higher than for normal dwellings (f
n=10–4), respectively. The effective equivalent dose of inhaled radon for permanent personnel under the worst conditions in the spa was 5.4 mSv/y, but visitors spending two weeks in the spa could receive the dose of 77 Sv. |
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