Abstract
In this work, the radionuclide activity concentrations of 226Ra, 232Th and 40K in surface soils and radon levels in dwellings of Karabuk, Turkey were determined in order to evaluate the environmental radioactivity. Concentrations of 226Ra, 232Th and 40K radionuclides were determined using gamma spectrometry with using HPGe detector. The etch track detectors (CR-39) were used to determine the distribution of radon concentrations. The average activity concentrations for 226Ra, 232Th and 40K were found as 21.0, 23.5 and 363.5 Bq kg−1, respectively. The calculated average annual effective dose equivalent from the outdoor terrestrial gamma radiation from 226Ra, 232Th and 40K is 53.5 μSv y−1. The average radon concentration and annual effective dose equivalent of 222Rn in Karabuk dwellings were obtained 131.6 Bqm−3 and 3.32 mSv y−1, respectively. The evaluated data were compared with the data obtained from different countries.
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