Origin and risk assessment of natural radioactivity in groundwater from the Eastern Gonghe Basin, Tibetan Plateau

Zhao-xuan Niu; Zhi-hui Deng; Xue Niu; Dong-fang Chen; Gui-lin Zhu; Wen-hao Xu; Lin-you Zhang; Qing-da Feng

doi:10.26599/JGSE.2025.9280056

Volume 13 Issue 3

Jun. 2025

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Article Navigation > Journal of Groundwater Science and Engineering > 2025 > 13(3): 301-311

Niu ZX, Deng ZH, Niu X, et al. 2025. Origin and risk assessment of natural radioactivity in groundwater from the Eastern Gonghe Basin, Tibetan Plateau. Journal of Groundwater Science and Engineering, 13(3): 301-311 doi: 10.26599/JGSE.2025.9280056

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Origin and risk assessment of natural radioactivity in groundwater from the Eastern Gonghe Basin, Tibetan Plateau

doi: 10.26599/JGSE.2025.9280056

1.
Center for Hydrogeology and Environmental Geology Survey, CGS, Tianjin 300304, China

More Information

Corresponding author: dzhihui@mail.cgs.gov.cn
Received Date: 2024-07-16
Accepted Date: 2025-05-23

Available Online: 2025-07-20

Publish Date: 2025-06-30

Abstract

Abstract

This study systematically investigates natural radioactivity in groundwater from the densely populated eastern Gonghe Basin in Qinghai Province, aiming to reveal its spatial distribution, origins, and potential health risks. The characteristics of gross-α and gross-β activities, as well as the concentrations of nuclide including ²³⁸U, ²³²Th, and ²²⁶Ra, have been investigated in groundwater samples from 12 groups encompassing various types such as hot springs and artesian wells across different aquifer systems. Correlation analysis and dose estimation models were applied to preliminary estimate the radiation exposure to local residents and to explore the genesis and hazards of natural radioactivity in groundwater. Results indicate that overall groundwater radioactivity in the Gonghe Basin remains within acceptable limits, with mean gross-α and gross-β activity concentrations of 0.32 Bq/L and 0.27 Bq/L, respectively. Approximately 83.33% of samples comply with relevant national standards. However, two fault-controlled high-temperature spring samples exhibited gross-α activity exceeding regulatory limits, with one also showing elevated gross-β activity surpassing China's Class III groundwater quality standards for radioactivity. Furthermore, single-radionuclide α radioactivity from ²³⁰Th, ²²⁶Ra, ²¹⁰Po, and ²³²Th exceeded regulatory thresholds in some samples, suggesting potential long-term health risks. While most samples complied with effective dose limits, four showed ²¹⁰Po α radioactivity exceedances within controllable risk ranges. The findings suggest that groundwater radioactivity in the region is primarily controlled by geological structures, lithology, and hydrothermal conditions, with fault zones and high-temperature environments serving as key factors in radionuclide enrichment. This research provides scientific foundation for the sustainable development of geothermal resources and the prevention of radioactive water contamination. Continuous monitoring of high-radioactivity hot springs and prudent resource utilization are recommended.
- Groundwater radioactivity,
- Gross-α,
- Gross-β,
- Radionuclides,
- Effective dose

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References

Agbalagba EO, Avwiri GO, Chadumoren YE. 2013. Gross α and β activity concentration and estimation of adults and infants dose intake in surface and ground water of ten oil fields environment in Western Niger Delta of Nigeria. Journal of Applied Sciences and Environmental Management, 17(2): 267−277. DOI: 10.4314/jasem.v17i2.10.

Alkhomashi N, Al Hamarneh FI, Almasoud IF. 2016. Determination of natural radioactivity in irrigation water of drilled wells in northwestern Saudi Arabia. Chemosphere, 144: 1928−1936. DOI: 10.1016/j.chemosphere.2015.10.094.

Alshamsi DM, Murad AA, Aldahan A, et al. 2013. Uranium isotopes in carbonate aquifers of arid region setting (Article). Journal of Radioanalytical and Nuclear Chemistry, 298(3): 1899−1905. DOI: 10.1007/s10967-013-2558-z.

Awadallah M, Al Hamarneh IF, Al-Abed T, et al. 2012. Natural radioactivity in tap water and associated age-dependent dose and lifetime risk assessment in Amman, Jordan. Applied Radiation and Isotopes, 70(4): 692−698. DOI: 10.1016/j.apradiso.2011.12.002.

Beyermann M, Bünger T, et al. 2010. Occurrence of natural radioactivity in public water supplies in Germany: ²³⁸U, ²³⁴U, ²³⁵U, ²²⁸Ra, ²²⁶Ra, ²²²Rn, ²¹⁰Pb, ²¹⁰Po and gross α activity concentrations. Radiation Protection Dosimetry, 141: 72−81. DOI: 10.1093/rpd/ncq139.

Bonotto DM, Bueno TO, Tessari BW, et al. 2008. The natural radioactivity in water by gross alpha and beta measurements. Radiation Measurements. 44(1): 92–101. DOI: 10.1016/j.radmeas.2008.10.015.

Contreras VJ, Chávez CM, Onorio CO, et al. 2022. Radiological study of water for human use and consumption in rural areas of the central zone of the State of Veracruz, Mexico. Nature Environment and Pollution Technology, 21(4): 1955−1962. DOI: 10.46488/NEPT.2022.V21I04.050.

Dai M. 2020. Hydrogeochemical characteristics and formation and evolution of geothermal water in Guide area, Qinghai province. China University of Geosciences (Beijing). (in Chinese) DOI: 10.27493/d.cnki.gzdzy.2020.000349.

Darko G, Faanu A, Akoto, O. 2015. Assessment of the activity of radionuclides and radiological impacts of consuming underground water in Kumasi, Ghana. Environmental Earth Sciences, 73(1): 399−404. DOI: 10.1007/s12665-014-3433-0.

EI Shabana, AA Kinsara. 2014. Radioactivity in the groundwater of a high background radiation area. Journal of Environmental Radioactivity, 137. DOI: 10.1016/j.jenvrad.2014.07.013.

Esi OE, Agbalagba EO, Avwiri G O. 2021. Impact of produced water discharge on the gross alpha and gross beta activity concentrations and radiological health risk on drinking water sources in coastal areas of Nigeria. International Journal of Ambient Energy, 42(1): 18−28. DOI: 10.4103/RPE.RPE_24_20.

Fahad I Almasoud, Zaid Q Ababneh, Yousef J, et al. 2020. Assessment of radioactivity contents in bedrock groundwater samples from the northern region of Saudi Arabia. Chemosphere, 242(C). DOI: 10.1016/j.chemosphere.2019.125181.

Fasae KP. 2013. Gross alpha and beta activity concentrations and committed effective dose due to intake of groundwater in Ado-Ekiti Metropolis; the Capital City of Ekiti State, Southwestern, Nigeria. Journal of Natural Sciences Research, 3(12): 61−66.

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. 2024. GB/T 14848–2024. Groundwater quality standard. Beijing: Standards Press of China. (in Chinese)

Giuseppe VL, Valeria A, Vittoria D, et al. 2021. Measurement of natural radionuclides in drinking water and risk assessment in a volcanic region of Italy, Campania. Water, 13(22): 3271−3271. DOI: 10.3390/W13223271.

Jia GG, Giancarlo Torri, Leandro Magro. 2009. Concentrations of ²³⁸U, ²³⁴U, ²³⁵U, ²³²Th, ²³⁰Th, ²²⁸Th, 226Ra, ²²⁸Ra, ²²⁴Ra, ²¹⁰Po, ²¹⁰Pb and ²¹²Pb in drinking water in Italy: reconciling safety standards based on measurements of gross α and β. Journal of Environmental Radioactivity, 100(11): 941−949. DOI: 10.1016/j.jenvrad.2009.07.002.

Jowzaee Sedigheh. 2013. Determination of selected natural radionuclide concentrations in southwestern Caspian groundwater using liquid scintillation counting. Radiation Protection Dosimetry, 157(2): 234−241. DOI: 10.1093/rpd/nct132.

Kleinschmidt RI. 2004. Gross alpha and beta activity analysis in water & mdash; a routine laboratory method using liquid scintillation analysis. Applied Radiation and Isotopes, 61: 333−338. DOI: 10.1016/j.apradiso.2004.03.004.

Laassiri M, Bouh A H, Ziad N, et al. 2025. Annual effective dose and associated health risk estimation using gross alpha and Beta activity concentrations in bottled mineral water in Morocco. Radiation Protection Dosimetry. DOI: 10.1093/RPD/NCAF019.

María L, Candelaria M, Antonio C, et al. 2022. Estimation of radiation doses due to groundwater intake at a volcanic island: Tenerife (Canary Islands, Spain). Food Control, 135. DOI: 10.1016/J.FOODCONT.2022.108830.

Murad A, Zhou XD, Yi P, Alshamsi D, et al, 2014. Natural radioactivity in groundwater from the south-eastern Arabian Peninsula and environmental implications. Environmental Monitoring and Assessment, 186(10): 6157. DOI: 10.1007/s10661-014-3846-y.

N Todorović, J Nikolov, B Tenjović. 2012. Establishment of a method for measurement of gross alpha/beta activities in water from Vojvodina region. Radiation Measurements, 47: 11−12. DOI: 10.1016/j.radmeas.2012.09.009.

Niu ZX, Niu X, Zhang LY, et al. 2022. Chemical characteristics of Neogene groundwater hot water in Qiabuqia area, Gonghe Basin. Science Technology and Engineering, 22(21): 9025−9033. (in Chinese) DOI: 10.3969/j.issn.1671-1815.2022.21.003.

Ong JX, Kok JZI, M KK, et al. 2024. Evaluation of tritium, gross alpha and gross beta radioactivity levels in tap and bottled drinking water in Singapore. Journal of Radioanalytical and Nuclear Chemistry, 1–11. DOI: 10.1007/S10967-024-09766-2.

Peng Y, Ma YS, Liu CL, et al. 2016. Geological characteristics and tectonic significance of the Indosinian granodiorites from the Zongwulong tectonic belt in North Qaidam. Earth Science Frontiers, 23(2): 206−221. (in Chinese) DOI: 10.13745/j.esf.2016.02.020.

Sadeghi N, Jabbari S, Behzad M. 2024. Gross alpha/beta and radionuclide activity concentrations in soil, plant and some fruits around the Tehran Research Reactor. Applied Radiation and Isotopes, 210111360-. DOI: 10.1016/J.APRADISO.2024.111360.

Shang WL, Jin MG. 2012. Preliminary analysis on the evolution of groundwater chemical characteristics at Ceke Port, Ejin Banner, Inner Mongolia. Journal of Inner Mongolia Normal University (Natural Science Edition), 41(3). (in Chinese) DOI: 10.3969/j.issn.1001-8735.2012.03.019.

State Administration for Market Regulation. 2022. GB 5749-2022. Sanitary standard for drinking water. Beijing: Standards Press of China. (in Chinese)

Turhan S, Oezcltak A, Varinlioglu, et al. 2013. Determination of natural radioactivity by gross alpha and beta measurements in ground water samples. Water Research, 47(9): 3103−3108. DOI: 10.1016/j.watres.2013.03.030.

UNSCEAR. 2016. Sources, Effects and risks of ionizing radiation. United Nations Publications.

Uzorka A, Olaniyan OA, Akiyode OO, et al. 2024. Evaluation of radioactivity levels and hazard indices of Th-232, Ra-226 and K-40 in sediment and water samples of Lake Victoria, Jinja, Uganda. Discover Environment, 2(1): 120−120. DOI: 10.1007/S44274-024-00155-W.

Valli S SN, Raju KM, Satyanarayana V V G, et al. 2024. Assessment of radioactivity levels and dose metrics in coastal drinking water sources of Odisha and Andhra Pradesh, India. Journal of Radioanalytical and Nuclear Chemistry, (prepublish): 1−13. DOI: 10.1007/S10967-024-09840-9.

Wang Y, Tong J, Li XL, et al. 2020. Geological characteristics and genetic analysis of Qunaihai hot spring in Qinghai province. Journal of East China University of Technology (Natural Science Edition), 43(03): 248−256. (in Chinese) DOI: 10.3969/j.issn.1674-3504.2020.03.006.

World Health Organization. 2017. Guidelines for drinking-water quality: Fourth edition incorporating the first addendum. Geneva: WHO Press.

Zhang LK, Liu X, Sun YJ, et al. 2025. Risks and governance of heavy metals in European soil applied phosphate fertilizers. China Geology, 8(3): 560−572. DOI:10.31035/ cg2023147.

Zhang SS, Zhang L, Tian CS, et al. 2019. Occurrence geological characteristics and development potential of hot dry rock in Gonghe Basin, Qinghai Province. Chinese Journal of Geological Mechanics, 25(04): 501−508. (in Chinese) DOI: 10.12090/j.issn.1006-6616.2019.25.04.048.

2305-7068/© Journal of Groundwater Science and Engineering Editorial Office. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0)

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