Characteristics of radio-cesium transport and discharge between different basins near to the Fukushima Dai-ichi Nuclear Power Plant after heavy rainfall events

Sakuma, Kenji; Kitamura, Akihiro; Malins, Alex; Kurikami, Hiroshi; Machida, Masahiko; Mori, Koji; Tada, Kazuhiro; Kobayashi, Takamaru; Tawara, Yasuhiro; Tosaka, Hiroyuki

doi:10.1016/j.jenvrad.2016.12.006

Cited by 25 publications

(13 citation statements)

References 29 publications

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“…An integral finite difference method is employed for spatial discretization to ensure local mass balance, and a fully implicit time discretization is employed to achieve stable computation. This simulator has been verified by many analytical solutions, controlled laboratory data, and more than 500 field data in Japan and overseas to ensure its accuracy and applicability (e.g., Kitamura et al, 2016;Mori et al, 2015;Sakuma et al, 2017;Tawara et al, 2014).…”

Section: Numerical Simulationmentioning

confidence: 99%

Coseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 M_w 7.0 Kumamoto Earthquake

Hosono

Yamada

Shibata

et al. 2019

Water Resources Research

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Groundwater‐level changes after earthquakes provide insight into changes in hydrogeological properties such as permeability and pore pressure. Quantifying such changes, both their location and magnitude, is usually hindered by limited data. Using extensive high‐resolution water‐level monitoring records, we provide direct evidence of significant groundwater drawdown (4.74‐m maximum) over a 160‐km2 area along crustal ruptures after the Mw 7.0, 2016, Kumamoto earthquake. Approximately 106 m3 of water disappeared within 35 min after the main shock. The loss of water was not caused by static‐strain driven pore‐pressure decrease nor by releasing of water through structural pathways, but most likely by water transfer downwards through open cracks. Such changes may impact the security of water resources, the safety of underground waste repositories, and contaminant transport in seismically active areas.

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Section: Numerical Simulationmentioning

confidence: 99%

Coseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 M_w 7.0 Kumamoto Earthquake

Hosono

Yamada

Shibata

et al. 2019

Water Resources Research

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“…Most of these are derived from the base rock, but also from chemical pollution, respectively those of radioactive contamination: iodine, cesium, osmium, thorium, terbium, berkelium, holmium, samarium, and indium. Radionuclides from the aerosols, regions dust, cosmic dust, nuclear accidents or mining area [22 -27] are taken over by meteoric water [28] and at the lithosphere level [29] are retained in time by the alumino-silicate, titanate, ferrates, etc. structures present in the sedimentary rocks.…”

Section: Libs Resultsmentioning

confidence: 99%

The Atmospheric Pollution Influence on the Surface Structures of Porous Geomaterials in Correlation with Some Natural Radionuclides

Pelin¹,

Breaban²,

Sandu³

et al. 2017

Rev. Chim.

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In the current context of climate and environmental changes, knowledge on the degradation and deterioration of the geomaterials mechanisms existing in the structure of both buildings and historical monuments becomes a priority due to the influence of atmospheric pollutants on apparent lithic surfaces. The aim of the paper is to highlight the impact of pollution on the surface structures of some porous carbonate rocks, where a series of radionuclides and heavy metals have been identified. Taking into account that these rocks are considered as commonly used local building material, being utilized also for the construction of the medieval and pre-modern historical monuments from the city of Iasi, the study draws attention to the detailed assessment of their conservation status from the built heritage in relation to the surrounding environment.

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“…To accomplish this, we constructed a model that reproduces the current AMD quantity using previous monitoring data of AMD, and then extrapolated it to the future. To reproduce AMD quantity, there are two ways: one is a hydraulic simulation [26][27][28][29][30][31] and the other is a tank model. A hydraulic simulation provides detailed information on the origin and distribution of AMD and can be a powerful tool for discussing AMD generation countermeasures, but it requires, in addition to meteorological data, detailed geological, mineralogical, and hydraulic data, which are generally difficult to obtain, especially for abandoned and closed mines.…”

Section: Introductionmentioning

confidence: 99%

Forecast of AMD Quantity by a Series Tank Model in Three Stages: Case Studies in Two Closed Japanese Mines

et al. 2020

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There are about 100 sites of acid mine drainage (AMD) from abandoned/closed mines in Japan. For their sustainable treatment, future prediction of AMD quantity is crucial. In this study, AMD quantity was predicted for two closed mines in Japan based on a series tank model in three stages. The tank model parameters were determined from the relationship between the observed AMD quantity and the inflow of rainfall and snowmelt by using the Kalman filter and particle swarm optimization methods. The Automated Meteorological Data Acquisition System (AMeDAS) data of rainfall were corrected for elevation and by the statistical daily fluctuation model. The snowmelt was estimated from the AMeDAS data of rainfall, temperature, and sunshine duration by using mass and heat balance of snow. Fitting with one year of daily data was sufficient to obtain the AMD quantity model. Future AMD quantity was predicted by the constructed model using the forecast data of rainfall and temperature proposed by the Max Planck Institute–Earth System Model (MPI–ESM), based on the Intergovernmental Panel on Climate Change (IPCC) representative concentration pathway (RCP) 2.6 and RCP8.5 scenarios. The results showed that global warming causes an increase in the quantity and fluctuation of AMD, especially for large reservoirs and residence time of AMD. There is a concern that for mines with large AMD quantities, AMD treatment will be unstable due to future global warming.

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Characteristics of radio-cesium transport and discharge between different basins near to the Fukushima Dai-ichi Nuclear Power Plant after heavy rainfall events

Cited by 25 publications

References 29 publications

Coseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 M_w 7.0 Kumamoto Earthquake

Coseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 M_w 7.0 Kumamoto Earthquake

The Atmospheric Pollution Influence on the Surface Structures of Porous Geomaterials in Correlation with Some Natural Radionuclides

Forecast of AMD Quantity by a Series Tank Model in Three Stages: Case Studies in Two Closed Japanese Mines

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Characteristics of radio-cesium transport and discharge between different basins near to the Fukushima Dai-ichi Nuclear Power Plant after heavy rainfall events

Cited by 25 publications

References 29 publications

Coseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 Mw 7.0 Kumamoto Earthquake

Coseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 Mw 7.0 Kumamoto Earthquake

The Atmospheric Pollution Influence on the Surface Structures of Porous Geomaterials in Correlation with Some Natural Radionuclides

Forecast of AMD Quantity by a Series Tank Model in Three Stages: Case Studies in Two Closed Japanese Mines

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Product

Resources

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Coseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 M_w 7.0 Kumamoto Earthquake

Coseismic Groundwater Drawdown Along Crustal Ruptures During the 2016 M_w 7.0 Kumamoto Earthquake