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Open AccessBrief Report

Study of Well Waters from High-Level Natural Radiation Areas in Northern Vietnam

1
Geophysics Department, Hanoi University of Mining and Geology, No 18, Vien Street, Bac Tu Liem District, Hanoi 100 000, Vietnam
2
Institute of Radiochemistry and Radioecology, University of Pannonia, H-8200 Veszprem, Hungary
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2021, 18(2), 469; https://doi.org/10.3390/ijerph18020469
Received: 7 December 2020 / Revised: 30 December 2020 / Accepted: 5 January 2021 / Published: 8 January 2021
The determination of natural radionuclide concentrations plays an important role for assuring public health and in the estimation of the radiological hazards. This is especially true for high level radiation areas. In this study, 226Ra, 228Ra and 238U concentrations were measured in well waters surrounding eight of the high-level natural radiation areas in northern Vietnam. The 226Ra, 228Ra and 238U activity concentrations vary from <1.2 × 10−3–2.7 (0.46), <2.6 × 10−3–0.43 (0.07) and <38 × 10−3–5.32 Bq/L (0.50 of median), respectively. 226Ra and 238U isotopes in most areas are in equilibrium, except for the DT-Thai Nguyen area. The calculated radiological hazard indices are generally higher than WHO (World Health Organization) recommendations. Average annual effective dose and excess lifetime cancer risk values due to drinking well water range from to 130 to 540 μSv/year and 7.4 × 10−6 to 3.1 × 10−5, respectively. View Full-Text
Keywords: 226Ra; 228Ra; 238U; well water; radiological hazards; REE and uranium mines; northern Vietnam 226Ra; 228Ra; 238U; well water; radiological hazards; REE and uranium mines; northern Vietnam
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MDPI and ACS Style

Duong, V.-H.; Nguyen, T.-D.; Hegedus, M.; Kocsis, E.; Kovacs, T. Study of Well Waters from High-Level Natural Radiation Areas in Northern Vietnam. Int. J. Environ. Res. Public Health 2021, 18, 469. https://doi.org/10.3390/ijerph18020469

AMA Style

Duong V-H, Nguyen T-D, Hegedus M, Kocsis E, Kovacs T. Study of Well Waters from High-Level Natural Radiation Areas in Northern Vietnam. International Journal of Environmental Research and Public Health. 2021; 18(2):469. https://doi.org/10.3390/ijerph18020469

Chicago/Turabian Style

Duong, Van-Hao; Nguyen, Thanh-Duong; Hegedus, Miklos; Kocsis, Erika; Kovacs, Tibor. 2021. "Study of Well Waters from High-Level Natural Radiation Areas in Northern Vietnam" Int. J. Environ. Res. Public Health 18, no. 2: 469. https://doi.org/10.3390/ijerph18020469

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