Radioactivity in waters of Mt. Etna (Italy) |
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| Authors: | B Koz&#x;owska D Morelli A Walencik J Dorda I Altamore V Chieffalo S Giammanco G Imm W Zipper |
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| Institution: | aUniversity of Silesia, Institute of Physics, Department of Nuclear Physics and Its Applications, ul. Uniwersytecka 4, 40007 Katowice, Poland;bDipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia, 64 I-95123 Catania, Italy;cINGV – Sezione di Catania, P. zza Roma,2 I-95125 Catania, Italy |
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| Abstract: | Radioactivity in underground waters from Mt. Etna was investigated on the basis of 13 samples. The samples were collected from springs, wells and galleries around the volcano. Water from nine out of thirteen intakes is used for consumption. Activity concentration of uranium isotopes 234,238U, radium isotopes 226,228Ra and radon 222Rn were determined with the use different nuclear spectrometry techniques. The measurements of radium and radon activity concentration were performed with the use of a liquid scintillation counter. The determination of uranium isotopes was carried out with the use of alpha spectrometry. All samples show uranium concentration above Minimum Detectable Activity (MDA), with the highest total uranium (234U + 238U) activity concentration equal to 130 mBq/l. For radium isotopes, all samples except one showed the activity concentration below MDA. Radon activity concentration was within the range from 1 to 13 Bq/l, hence these waters can be classified as low-radon waters. |
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| Keywords: | Ra-226 Ra-228 U-238 U-234 Rn-222 Drinking water Activity concentration Effective dose |
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