Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Radiological hazards assessment associated with granitoid rocks in Egypt

  • Ahmed E. Abdel Gawad (Nuclear Materials Authority) ;
  • Masoud S. Masoud (Nuclear Materials Authority) ;
  • Mayeen Uddin Khandaker (Applied Physics and Radiation Technologies Group, CCDCU, School of Engineering and Technology, Sunway University) ;
  • Mohamed Y. Hanfi (Nuclear Materials Authority)
  • Received : 2023.12.19
  • Accepted : 2024.01.23
  • Published : 2024.06.25
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Abstract

The present study aimed to assess the radioactive hazards associated with the application of granitoid rocks in building materials. An HPGe spectrometer was used to detect the levels of the radioactive elements uranium-238, thorium-232, and potassium-40 in the granitoid rocks. The results showed that the levels of these elements were lower (38.32 < 33 Bq kg-1), comparable (47.19-45 Bq kg-1) and higher (992.26 ≫> 412 Bq kg-1) than the worldwide limits for 238U, 232Th, and 40K concentration, respectively. The exposure to gamma radiation of granitoid rocks was studied by various radiological hazard variables like the absorbed dose rate (Dair), the outdoor and indoor annual effective dose (AEDout and AEDin), and excess lifetime cancer risk (ELCR). A variety of statistical methods, including Pearson correlation, principal component analysis (PCA), and hierarchical cluster analysis (HCA) was used, to study the relationship between the radioactive elements and the radiological hazards. According to statistical analysis, the main radioactive risk of granitoid rocks is contributed to by the elements uranium-238, thorium-232, and potassium-40. Granitoid rocks can be applied in building materials, but under control to prevent risk to the public.

Keywords

References

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