Measurement of soil contamination by radionuclides due to the Fukushima Dai-ichi Nuclear Power Plant accident and associated estimated cumulative external dose estimation

Endo, Satoru; Kimura, Masayoshi; Takatsuji, Toshihiro; Nanasawa, K.; Imanaka, Tetsuji; Shizuma, Kiyoshi

doi:10.1016/j.jenvrad.2011.11.006

Cited by 157 publications

(70 citation statements)

References 5 publications

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“…Additionally, 140 Ba and 140 La were detected in soil samples (Endo et al, 2012). Measurement stations in Europe confirmed that all these radionuclides have been transported by the atmosphere and a few stations reported also 95 Nb .…”

Section: Introductionmentioning

confidence: 74%

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Atmospheric transport and deposition of radionuclides released after the Fukushima Dai-chi accident and resulting effective dose

Marzo

2014

Atmospheric Environment

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Section: Introductionmentioning

confidence: 74%

“…Generally, dose estimates have been provided for Japan (e.g., Endo et al, 2012;Christoudias and Lelieveld, 2013;Korsakissok et al, 2013) while dose estimates available at the global scale are relatively coarse in spatial resolution and take into account only cesium isotopes (e.g., Evangeliou et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Atmospheric transport and deposition of radionuclides released after the Fukushima Dai-chi accident and resulting effective dose

Marzo

2014

Atmospheric Environment

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“…These observations were obtained from airborne campaigns (Sanada et al, 2014) and soil sampling campaigns (Endo et al, 2012;Saito et al, 2015b). This map is shown in Fig.…”

Section: Comparison To Deposition Datamentioning

confidence: 99%

Using the Wasserstein distance to compare fields of pollutants: application to the radionuclide atmospheric dispersion of the Fukushima-Daiichi accident

Farchi

Bocquet

Roustan

et al. 2016

Tellus B: Chemical and Physical Meteorology

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A B S T R A C TThe verification of simulations against data and the comparison of model simulation of pollutant fields rely on the critical choice of statistical indicators. Most of the scores are based on point-wise, that is, local, value comparison. Such indicators are impacted by the so-called double penalty effect. Typically, a misplaced blob of pollutants will doubly penalise such a score because it is predicted where it should not be and is not predicted where it should be. The effect is acute in plume simulations where the concentrations gradient can be sharp. A non-local metric that would match concentration fields by displacement would avoid such double penalty. Here, we experiment on such a metric known as the Wasserstein distance, which tells how penalising moving the pollutants is. We give a mathematical introduction to this distance and discuss how it should be adapted to handle fields of pollutants. We develop and optimise an open Python code to compute this distance. The metric is applied to the dispersion of cesium-137 of the Fukushima-Daiichi nuclear power plant accident. We discuss of its application in model-to-model comparison but also in the verification of model simulation against a map of observed deposited cesium-137 over Japan. As hoped for, the Wasserstein distance is less penalising, and yet retains some of the key discriminating properties of the root mean square error indicator.

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“…The released 134 Cs and 137 Cs fell to the soil and resulted in soil contamination [2] . The contaminated soil emitted g-rays at 0 .605 MeV for 134 Cs and 0 .660 MeV for 137 Cs, and the air radiation dose increased to more than 1 µSv/h in these areas [3,4] . Therefore, decreasing the dose was desired and decontamination was required .…”

Section: Introductionmentioning

confidence: 99%

Separation of radioactive cesium and iodine from contaminated soil by adsorption and decantation

Miyoshi

2013

Radiat. Safety. Manag.

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Measurement of soil contamination by radionuclides due to the Fukushima Dai-ichi Nuclear Power Plant accident and associated estimated cumulative external dose estimation

Cited by 157 publications

References 5 publications

Atmospheric transport and deposition of radionuclides released after the Fukushima Dai-chi accident and resulting effective dose

Atmospheric transport and deposition of radionuclides released after the Fukushima Dai-chi accident and resulting effective dose

Using the Wasserstein distance to compare fields of pollutants: application to the radionuclide atmospheric dispersion of the Fukushima-Daiichi accident

Separation of radioactive cesium and iodine from contaminated soil by adsorption and decantation

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