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Study on calculation model and risk area of radionuclide diffusion in coastal waters under nuclear leakage accidents with different levels

  • Zichao Li ORCID logo EMAIL logo , Rongchang Chen EMAIL logo , Tao Zhou EMAIL logo , Chen Liu EMAIL logo , Guangcheng Si and Qingqing Xue
Published/Copyright: May 9, 2023
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Kerntechnik
From the journal Kerntechnik Volume 88 Issue 4

Abstract

Study on calculation model and risk area of radionuclide diffusion in coastal waters under nuclear leakage accidents with different levels can help predict and evaluate consequences of radionuclide leakage accidents. Thus they play an important role in emergency response and accident mitigation. In the first step of the study, a climate hydrodynamic model in China coastal waters was established based on the climate data. In the next step, according to the real-time meteorological data, a hydrodynamic model in coastal waters of Haiyang nuclear power station was founded using the result of the climate hydrodynamic as a boundary. Then, according to the result of the hydrodynamic model in coastal waters of Haiyang nuclear power station, a radionuclide diffusion model in coastal waters of Haiyang nuclear power station was set up, in which the Euler method was adopted. With the radionuclide diffusion model, the total leaked radioactivity of radionuclides was set from 1018 Bq to 1012 Bq with a decrease of every two orders of magnitude. Thus, scenarios of radionuclide diffusion under assumed nuclear leakage accidents with different levels were calculated and their corresponding risk area were analyzed under the assumption that radionuclides leaked for consecutive five days. The results show that when the leaked radioactivity of radionuclides is 1018 Bq, the risk area on the seventh day is about 41 km east, 22 km south and 19 km west of the power station; on the fourteenth day, the risk area is about 65 km east, 22 km south and 25 km west of the power station. When the total leaked radioactivity of radionuclides declines by two orders of magnitude, the risk area will be reduced by about 10 km–20 km in the east direction accordingly. When it declines to 1014 Bq, the risk area decreases sharply to a small area. When it declines to 1012 Bq, the risk area is barely found. This model was verified from two aspects, namely the flow field and the radionuclide concentration. Hydrodynamic results can well describe the Yellow Sea cold water mass, Yellow Sea warm current and tidal current. Changes of radioactivity in different positions are fundamentally consistent with that in Fuikushima nuclear leakage accident. It indicates the hydrodynamic model and radionuclide diffusion model in the study are feasible and reliable.

Keywords: calculation model; different levels; nuclear leakage accidents; radionuclide diffusion; risk area
Corresponding author: Zichao Li, Rongchang Chen and Chen Liu, China Waterborne Transport Research Institute, Beijing, 100088, China, E-mail: , , .; and Tao Zhou, Southeast University, School of Energy and Environment, Nanjing, 210096, China, E-mail:

Funding source: the Fundamental Research Funds of Ministry of Finance

Award Identifier / Grant number: 62215

Funding source: the National Key Technologies Research and Development Program

Award Identifier / Grant number: 2016YFC1402501

Funding source: Ministry of Finance

Award Identifier / Grant number: Unassigned

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This study is supported by the Fundamental Research Funds of Ministry of Finance (Grant 62215, Grant 62216 and Grant 62223), and the National Key Technologies Research and Development Program (Grant 2016YFC1402501).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

References

Behrens, E., Schwarzkopf, F.U., Lübbecke, J.F., and Ning, C.W. (2012). Model simulations on the long-term dispersal of 137Cs released into the Pacific Ocean off Fukushima. Environ. Res. Lett. 7: 34004–34013, https://doi.org/10.1088/1748-9326/7/3/F034004.Search in Google Scholar

Bezhenar, R., Jung, K.T., Maderich, V., Willemsen, S., de With, G., and Qiao, F. (2016). Transfer of radiocaesium from contaminated bottom sediments to marine organisms through benthic food chains in post-Fukushima and post-Chernobyl periods. Biogeosciences 13: 3021–3034, https://doi.org/10.5194/bg-13-3021-2016.Search in Google Scholar

Blumberg, A.F. and Mellor, G.L. (1987). A description of a three‐dimensional coastal ocean circulation model. In: Heaps, N.S. (Ed.), Coastal and estuarine sciences, book 4. American Geophysical Union, pp. 1–6.10.1029/CO004p0001Search in Google Scholar

Breton, M. and Salomon, J.C. (1995). A 2D long term advection-dispersion model for the channel and southern North Sea part a: validation through comparison with artificial radionuclides. J. Mar. Syst. 6: 495–513, https://doi.org/10.1016/0924-7963(95)00020-P.Search in Google Scholar

Četina, M., Rajar, R., and Povinec, P. (2000). Modelling of circulation and dispersion of radioactive pollutants in the Japan Sea. Oceanol. Acta 23: 819–836, https://doi.org/10.1016/S0399-1784(00)01120-8.Search in Google Scholar

Estournel, C., Bosc, E., Bocquet, M., Ulses, C., Marsaleix, P., Winiarek, V., Osvath, I., Nguyen, C., Duhaut, T., Lyard, F., et al.. (2012). Assessment of the amount of 137Cs released into the Pacific Ocean after the Fukushima accident and analysis of its dispersion in Japanese coastal waters. J. Geophys. Res.: Oceans 117: C1014, https://doi.org/10.1029/2012JC007933.Search in Google Scholar

Haidvogel, D.B., Arango, H.G., Hedstrom, K., Beckmann, A., Malanotte-Rizzoli, P., and Shchepetkin, A.F. (2000). Model evaluation experiments in the North Atlantic Basin: simulations in nonlinear terrain-following coordinates. Dynam. Atmos. Oceans 32: 239–281, https://doi.org/10.1016/S0377-0265(00)00049-X.Search in Google Scholar

Harms, I.H. (1997). Modelling the dispersion of 137Cs and 239Pu released from dumped waste in the kara sea. J. Mar. Syst. 13: 1–19, https://doi.org/10.1016/S0924-7963(96)00117-0.Search in Google Scholar

Kawamura, H., Kobayashi, T., Furuno, A., Teiji, I.N., Ishikawa, Y., Nakayama, T., Shima, S., and Awaji, T. (2012). Preliminary numerical experiments on oceanic dispersion of 131I and 137Cs discharged into the ocean because of the Fukushima Daiichi nuclear power plant disaster. J. Nucl. Sci. Technol. 48: 1349–1356, https://doi.org/10.1080/18811248.2011.9711826.Search in Google Scholar

Kinoshita, N., Sueki, K., Sasa, K., Kitagawa, J.I., Ikarashi, S., Nishimura, T., Wong, Y.S., Satou, Y., Handa, K., Takahashi, T., et al.. (2011). Assessment of individual radionuclide distributions from the Fukushima nuclear accident covering central-east Japan. Proc. Natl. Acad. Sci. U. S. A. 108: 19526–19529, https://doi.org/10.1073/pnas.1111724108.Search in Google Scholar PubMed PubMed Central

Lepicard, S., Heling, R., and Maderich, V. (2004). POSEIDON/RODOS models for radiological assessment of marine environment after accidental releases: application to coastal areas of the Baltic, Black and North Seas. J. Environ. Radioact. 72: 153–161, https://doi.org/10.1016/S0265-931X(03)00197-8.Search in Google Scholar PubMed

Maderich, V., Brovchenko, I., Dvorzhak, A., Ievdin, I., Koshebutsky, V., and Periáñez, R. (2016). Integration of 3d model THREETOX in JRODOS, implementation studies and modelling of Fukushima scenarios. Radioprotection 51: S133–S135, https://doi.org/10.1051/radiopro/2016049.Search in Google Scholar

Nakano, T., Motoi, K., Hirose, K., and Aoyama, M. (2010). Analysis of 137Cs concentration in the pacific using a Lagrangian approach. J. Geophys. Res. C Oceans 115: C06015, https://doi.org/10.1029/2009JC005640.Search in Google Scholar

Nakano, M. and Povinec, P.P. (2012). Long-term simulations of the 137Cs dispersion from the Fukushima accident in the world ocean. J. Environ. Radioact. 111: 109–115, https://doi.org/10.1016/j.jenvrad.2011.12.001.Search in Google Scholar PubMed

Ng, K.H., Yoong, D., and Gong, J. (2022). Overcoming the Fukushima wastewater crisis: what the Japanese authorities could do to address opposing views. Health Phys. 122: 696–704, https://doi.org/10.1097/hp.0000000000001548.Search in Google Scholar PubMed

Periáñez, R., Suh, K.S., and Min, B.I. (2012). Local scale marine modelling of Fukushima releases. Assessment of water and sediment contamination and sensitivity to water circulation description. Mar. Pollut. Bull. 64: 2333–2339, https://doi.org/10.1016/j.marpolbul.2012.08.030.Search in Google Scholar PubMed

Periáñez, R., Suh, K.S., and Min, B.I. (2016). The behaviour of 137Cs in the North Atlantic Ocean assessed from numerical modelling: releases from nuclear fuel reprocessing factories, redissolution from contaminated sediments and leakage from dumped nuclear wastes. Mar. Pollut. Bull. 113: 343–361, https://doi.org/10.1016/j.marpolbul.2016.10.021.Search in Google Scholar PubMed

Periáñez, R., Bezhenar, R., Brovchenko, I., Duffa, C., Iosjpe, M., Jung, K.T., Kim, K.O., Kobayashi, T., Liptak, L., Little, A., et al.. (2019). Marine radionuclide transport modelling: recent developments, problems and challenges. Environ. Model. Softw. 122: 104523, https://doi.org/10.1016/j.envsoft.2019.104523.Search in Google Scholar

Prandle, D. (1984). A modelling study of the mixing of 137Cs in the seas of the European continental Shelf. Philos. Trans. R. Soc. London 311: 523, https://doi.org/10.1098/rsta.1984.0002.Search in Google Scholar

Roland, A., Zhang, Y.J., Wang, H.V., Meng, Y., Teng, Y.C., Maderich, V., Brovchenko, I., Dutour-Sikiric, M., and Zanke, U. (2012). A fully coupled 3D wave-current interaction model on unstructured grids. J. Geophys. Res. C Oceans 117: C00J33, https://doi.org/10.1029/2012JC007952.Search in Google Scholar

Yang, B., Yin, K., Li, X., and Liu, Z. (2022). Graph model under grey and unknown preferences for resolving conflicts on discharging Fukushima nuclear wastewater into the ocean. J. Clean. Prod. 332: 130019, https://doi.org/10.1016/j.jclepro.2021.130019.Search in Google Scholar
Received: 2022-12-08
Published Online: 2023-05-09
Published in Print: 2023-08-28

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/kern-2022-0120
Keywords for this article
calculation model; different levels; nuclear leakage accidents; radionuclide diffusion; risk area

Articles in the same Issue

  1. Frontmatter
  2. An approach for an extension of the deflagration model in containment code system COCOSYS to separate burned and unburned atmosphere via junctions
  3. Neutronic analysis of the European sodium cooled fast reactor with Monte Carlo code OpenMC
  4. Identification and tracing of radionuclides in low- and medium-activity liquid radwaste sources of G.A. Siwabessy reactor
  5. Performance evaluation of a currently in-use dry storage cask design for spent accident tolerant fuel loading case under normal operation condition
  6. Optimization of divertor design for Pakistan spherical tokamak
  7. Role of impurity and thermal noise on the radiation sources in ITER using DT fuel
  8. An investigation of multistream plate-fin heat exchanger modelling and design: a review
  9. Ensuring safety of new, advanced small modular reactors for fundamental safety and with an optimal main heat transport systems configuration
  10. Study on calculation model and risk area of radionuclide diffusion in coastal waters under nuclear leakage accidents with different levels
  11. Optimization of 200 MWt HTGR with ThUN-based fuel and zirconium carbide TRISO layer
  12. Experimental study on boiling heat transfer of γ-Fe2O3 nanofluids on a downward heated surface
  13. Evaluating the influence of radial power heterogeneity of fuel rod on its temperature in an accelerator driven subcritical system
  14. Heat transfer enhancement of heat exchanger using rectangular channel with cavities
  15. Calendar of events
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