Natural radionuclide content and radiological hazard associated with usage of quartzite sand samples from Ovacik-Silifke-Mersin open pit as building material in Turkey


TURHAN Ş., Aykamis A. S. , KILIÇ A. M.

RADIATION PROTECTION DOSIMETRY, cilt.136, ss.101-107, 2009 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 136 Konu: 2
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1093/rpd/ncp145
  • Dergi Adı: RADIATION PROTECTION DOSIMETRY
  • Sayfa Sayıları: ss.101-107

Özet

Activity concentrations of U-238, Th-232, Ra-226 and K-40 in quartzite sand samples collected from the Ovacik-Silifke-Mersin open pit located in the East Mediterranean region of Turkey were determined by using a gamma-ray spectrometry technique. The mean activity concentrations of the U-238, Th-232, Ra-226 and K-40 in quartzite sand samples were found as 81.7 +/- 22.9 Bq kg(-1), 6.3 +/- 2.8 Bq kg(-1), 77.5 +/- 24.3 Bq kg(-1)and 140.0 +/- 124.1 Bq kg(-1), respectively. The gamma index (I-gamma), the internal exposure index (I-alpha), the indoor absorbed dose rate (D-in) and the corresponding annual effective dose (H-in) were evaluated for the public exposure to radiological hazard arising due to the use of quartzite sand samples as building material. The values of I-gamma, I-alpha, D-in and H-in ranged from 0.20 to 0.75, with a mean of 0.34 +/- 0.11, 0.23 to 0.77 with a mean of 0.39 +/- 0.12, 58.27 to 201.51 nGy h(-1) with a mean of 93.33 +/- 27.63 nGy h(-1) and 0.29 to 0.99 mSv with a mean of 0.46 +/- 0.14 mSv, respectively.