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

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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%.

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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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Authors and Affiliations

  1. Department of Nuclear Physics, Faculty of Physics and Engineering Physics, University of Science, VNU-HCM, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam

    Phan Long Ho, Tran Thien Thanh & Chau Van Tao

  2. Department of Testing, Institute of Public Health, 159, Hung Phu Street, District 8, Ho Chi Minh City, Vietnam

    Phan Long Ho, Vu Tuan Minh, Le Dinh Hung, Do Quoc Trung & Dang Van Chinh

  3. Nuclear Technique Laboratory, University of Science, VNU-HCM, 227, Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam

    Tran Thien Thanh & Chau Van Tao

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  1. Phan Long Ho
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  2. Vu Tuan Minh
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  3. Le Dinh Hung
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  4. Do Quoc Trung
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Correspondence to Tran Thien Thanh.

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Ho, P.L., Minh, V.T., Hung, L.D. et al. Assessment of annual effective dose from radium isotopes in groundwater samples in households along the lower Mekong River. J Radioanal Nucl Chem 322, 503–511 (2019). https://doi.org/10.1007/s10967-019-06699-z

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