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Study on the characteristics of natural radionuclides in surface soil in Ho Chi Minh City, Vietnam and radiological health hazard

  • Vu Ngoc BaEmail author
  • Nguyen Van Thang
  • Nguyen Quang Dao
  • Huynh Nguyen Phong Thu
  • Truong Thi Hong Loan
Original Article
  • 29 Downloads

Abstract

The activity concentration of the natural radionuclides 232Th, 238U, and 40K in soil samples collected from different locations of Ho Chi Minh City, Vietnam was measured. At District 1, the average activity concentration of primordial radionuclides 232Th, 238U, and 40K were 25 ± 2, 33 ± 1, and 215 ± 7 Bq kg−1, respectively. At District 5, the corresponding values were 22 ± 1, 23 ± 1, and 198 ± 6 Bq kg−1, respectively. The external hazard index and annual effective dose were found within the safety limitation of UNSCEAR. The cancer risk of people living in District 1 was slightly higher than District 5, with average value of (168 ± 5) 10−6 Sv−1 in District 1 and (133 ± 4) 10−6 Sv−1 in District 5. Th/K ratio was calculated for studying the geological characteristics. The results indicated that two main types of soil are kaolinite and montmorillonite.

Keywords

Natural radionuclides HPGe Cancer risk External hazard index Clay material 

Notes

Acknowledgements

Our Nuclear Technique Laboratory (NTLab) was invested by Vietnam National University of Ho Chi Minh City, Vietnam.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Vu Ngoc Ba
    • 1
    Email author
  • Nguyen Van Thang
    • 1
  • Nguyen Quang Dao
    • 2
  • Huynh Nguyen Phong Thu
    • 1
  • Truong Thi Hong Loan
    • 1
    • 2
  1. 1.Nuclear Technique LaboratoryVNUHCM-University of ScienceHo Chi Minh CityVietnam
  2. 2.Department of Nuclear Physics and Nuclear Engineering, Faculty of Physics and Engineering PhysicsUniversity of Science, VNU-HCMHo Chi Minh CityVietnam

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