Dose rates and seasonal variations of 238U, 232Th, 226Ra 40K and 137Cs radionuclides in soils along Thrace, Turkey

Abstract

Concentrations of 238U, 232Th, 226Ra, 40K and 137Cs are measured in collected soil samples from various locations in the Thrace region of Turkey. The activity concentrations range from 12.82 to 101.75 Bq kg−1 d.w. (dry weight) for 238U, from 5.16 to 73.34 Bq kg−1 d.w. for 232Th, from 185.54 to 5399 Bq kg−1 d.w. for 40K and from 11.42 to 90.73 Bq kg−1 d.w. for 226Ra. In addition to naturally occurring radionuclides, 137Cs activity concentration is determined between 3.05 and 46.78 Bq kg−1 d.w. for soil samples. Determination of the radiological hazard is achieved through calculations of the external terrestrial gamma dose rate in air (nGy h−1) and annual effective dose rate (mSv year−1) and the results are compared with the similar works in different countries.

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Acknowledgments

We would like to thank the handling editor Tibor Braun and two serious reviewers for the final comments and suggestions.

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Correspondence to Fatih Külahcı.

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Aközcan, S., Yılmaz, M. & Külahcı, F. Dose rates and seasonal variations of 238U, 232Th, 226Ra 40K and 137Cs radionuclides in soils along Thrace, Turkey. J Radioanal Nucl Chem 299, 95–101 (2014). https://doi.org/10.1007/s10967-013-2730-5

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Keywords

  • Natural radionuclide
  • Uranium
  • Thorium
  • Radium
  • Cesium
  • Potassium
  • Soil