Radiation Protection Dosimetry Advance Access originally published online on July 19, 2005
Radiation Protection Dosimetry 2006 118(1):88-92; doi:10.1093/rpd/nci325
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Natural radioactivity in tap waters of Eastern Black Sea region of Turkey
. Kobya1
1 Faculty of Arts and Sciences, Department of Physics, Karadeniz Technical University, 61080 Trabzon, Turkey
2 Çekmece Nuclear Research and Training Center, P.O. Box 1, Atatürk Airport, 34831 Istanbul, Turkey
* Corresponding author: ugurc{at}ktu.edu.tr
Received April 18, 2005, amended June 17, 2005, accepted June 27, 2005
In this study, the activity concentrations of some radionuclides in tap water samples of the Eastern Black Sea region of Turkey were measured. The activity concentrations of radionuclides 214Pb, 214Bi, 40K, 226Ra and 137Cs were determined using high resolution gamma ray spectrometry. Furthermore, 222Rn activity concentrations in tap water samples were measured using Liquid Scintillation Counting. The mean specific activities of 214Pb, 214Bi, 226Ra, 40K, 137Cs and 222Rn in tap water samples were 6.73, 6, 19.16, 168.57, 5.45 mBq l–1 and 10.82 Bq l–1, respectively. These values are comparable with concentrations reported for other countries. The effective doses were determined due to intake of these radionuclides as a consequence of direct consumption of tap water samples. The estimated effective doses were 6.878 x 10–4 µSv y–1 for 214Pb, 4.800 x 10–4 µSv y–1 for 214Bi, 3.916 µSv y–1 for 226Ra, 0.763 µSv y–1 for 40K, 0.052 µSv y–1 for 137Cs and 5.848 µSv y–1 for 222Rn.
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