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Radon concentration in hot springs of the touristic city of Sarein and methods to reduce radon in water
Authors:A. Jalili-Majareshin  A. Behtash  D. Rezaei-Ochbelagh
Affiliation:1. Department of Physics, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran;2. Department of Physics, Middle East Technical University, 06531 Ankara, Turkey;1. Grup de Física de les Radiacions, Departament de Física, Edifici Cc, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain;2. Unitat de Geodinàmica Externa i d''Hidrogeologia, Departament de Geologia, Edifici Cs, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain;1. Dipartimento di Scienze, Università “Roma Tre”, Roma, Italy;2. Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma, Roma, Italy;1. Sakarya University, Faculty of Science and Art, Department of Physics, Sakarya, Turkey;2. Ege University, Institute of Nuclear Sciences, Izmir, Turkey;3. Ege University, Faculty of Agriculture, Department of Soil Science and Plant Nutrition, Izmir, Turkey;1. Department of Science and Technology, University of Naples “Parthenope”, Centro Direzionale, Isola C4, 80143 Napoli, Italy;2. Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Caserta, Via Vivaldi, 43, 81100 Caserta, Italy;3. I.N.G.V. (Istituto Nazionale di Geofisica e Vulcanologia), Via di Vigna Murata, 00100 Roma, Italy
Abstract:
The aim of this research was to measure the efficiency of various simple methods to decrease the concentration of radon in hot springs of the touristic city of Sarein (a touristic city in northwest Iran). With the aid of “RAD7” radon detector, concentrations in water varied from 212 Bq m?3 to 3890 Bq m?3. Using 250 mL vials half-filled with water samples, our research showed that when the temperature of the water increased from 17 °C to 27 °C, the radon concentration decreased from 3230 Bq m?3 to 745 Bq m?3. The mixing of the sample at a speed of 500 rpm for 12 min led to a radon reduction of about 70%. Aerating the water sample with 0.2 L min?1 of ambient air resulted in a 90% decrease in radon concentration in 6 min. Strong exponential correlations (>95%) were reported, which verified that the effectiveness of these methods in reducing dissolved gas in the waters used would be high.
Keywords:
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