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Assessment of annual effective dose from radium isotopes in groundwater samples in households along the lower Mekong River

  • Phan Long Ho
  • Vu Tuan Minh
  • Le Dinh Hung
  • Do Quoc Trung
  • Dang Van Chinh
  • Tran Thien ThanhEmail author
  • Chau Van Tao
Article
  • 4 Downloads

Abstract

In this study, the 224Ra, 226Ra, 228Ra in groundwater samples at Long Phu district were determined by HPGe detector with co-precipitation method. The median concentrations were 0.040 ± 0.005 Bq L−1, 0.039 ± 0.004 Bq L−1, and 0.049 ± 0.004 Bq L−1. Highest MDC values were 0.028 Bq L−1, 0.010 Bq L−1, 0.018 Bq L−1, respectively. It’s a strong relationship between 224Ra, 228Ra versus conductivity, salinity, TDS, SO42−. The annual effective dose of the age groups was lower than the WHO recommended value except for infants exceeding around 1.5 times. Besides, the 226Ra minimum recovery obtained was 90% with trueness 9.9% and relative percentage difference 6.1%.

Keywords

Radium isotopes Groundwater Co-precipitation method Gamma spectrometry Annual effective dose Pearson correlation 

Notes

Acknowledgements

This research is funded by the Institute of Public Health in Ho Chi Minh City under Grant No. XN.18.14. The authors sincerely thank the residents and the Long Phu District Health Center for assistance in collecting samples. The authors would like to express our thanks to the anonymous reviewers of this manuscript, for their critical review and helpful discussions.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Department of Nuclear Physics, Faculty of Physics and Engineering Physics, University of ScienceVNU-HCMHo Chi Minh CityVietnam
  2. 2.Department of TestingInstitute of Public HealthHo Chi Minh CityVietnam
  3. 3.Nuclear Technique Laboratory, University of ScienceVNU-HCMHo Chi Minh CityVietnam

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