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Evaluation and mapping of radionuclides in the terrestrial environment and health hazard due to soil radioactivity in Artvin, Turkey

  • Halim Taşkın
  • Cafer Mert Yeşilkanat
  • Yaşar KobyaEmail author
  • Uğur Çevik
Original Paper

Abstract

In this study, the radiological characterization of top soil in the Artvin region, the assessment of relevant health risks, and obtaining the distribution of radiological parameters in soil of the region by means of the geostatistical method were aimed. Mean concentration values of 226Ra, 232Th, 40K, and 137Cs radionuclides in 117 soil samples were determined by gamma spectrometric analysis as 42.26, 27.57, 390.42, and 14.87 Bq/kg, respectively. According to the results obtained, the radium equivalent activity (Raeq), the internal radiation hazard (Hin), the external radiation hazard (Hex), and the gamma representative level (Iγr) were found to be 111.75 Bq/kg, 0.41, 0.30, and 0.81, respectively, for the region. In addition, mean absorbed dose rate, annual effective dose equivalent, and excessive lifetime cancer risk values were calculated as 54.79 nGy/h, 0.067 mSv/year, and 0.00023, respectively, for the province. In addition, it was determined that all radiological parameters obtained for the region were lower than the worldwide averages. Finally, in order to estimate the activity for unsampled points and to determine the radiation distribution, the interpolations for each radionuclide were done through ordinary kriging method; the spatial distribution maps were created using these estimations, and it was seen that the distribution of the radionuclides around the region was quite compatible with both the calculated dose rates and cancer risk distribution in the region.

Keywords

Soil Radiological distribution Radiological indices Geostatistical mapping Artvin 

Notes

Acknowledgements

The authors would like to thank Dr. Sabit Korcak for his assistance.

Funding information

This study was promoted by ACU research grant (BAP-2013.F42.02.05) and Cekmece Nuclear Research and Training Center.

Supplementary material

12517_2018_4063_MOESM1_ESM.docx (37 kb)
ESM 1 (DOCX 36 kb)

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Copyright information

© Saudi Society for Geosciences 2018

Authors and Affiliations

  • Halim Taşkın
    • 1
  • Cafer Mert Yeşilkanat
    • 2
  • Yaşar Kobya
    • 3
    Email author
  • Uğur Çevik
    • 4
  1. 1.Cekmece Nuclear Research and Training CentreTAEKIstanbulTurkey
  2. 2.Science Teaching DepartmentArtvin Çoruh UniversityArtvinTurkey
  3. 3.Faculty of Engineering, Energy Systems EngineeringArtvin Çoruh UniversityArtvinTurkey
  4. 4.Faculty of Science, Department of PhysicsKaradeniz Technical UniversityTrabzonTurkey

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