Estimation of the Thyroid Equivalent Doses to Residents in Areas Affected by the 2011 Fukushima Nuclear Disaster Due to Inhalation of 131I Based on Their Behavioral Data and the Latest Atmospheric Transport and Dispersion Model Simulation

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Eunjoo Kim ◽  
Yu Igarashi ◽  
Shozo Hashimoto ◽  
Kotaro Tani ◽  
Munehiko Kowatari ◽  
...  
Keyword(s):  
Atmospheric Transport ◽  
Model Simulation ◽  
Dispersion Model ◽  
Behavioral Data ◽  
Nuclear Disaster ◽  
Fukushima Nuclear Disaster

scholarly journals Difference in the Cesium Body Contents of Affected Area Residents Depending on the Evacuation Timepoint Following the 2011 Fukushima Nuclear Disaster

2020 ◽  
Vol 119 (6) ◽  
pp. 733-745 ◽  
Author(s):  
Yu Igarashi ◽  
Eunjoo Kim ◽  
Shozo Hashimoto ◽  
Kotaro Tani ◽  
Kazuaki Yajima ◽  
...  
Keyword(s):  
Affected Area ◽  
Nuclear Disaster ◽  
Fukushima Nuclear Disaster

scholarly journals Absence of Detectable Radionuclides in Breast Milk in Sendai, Japan in 2012 Even by High-Sensitivity Determination: Estimated Dose among Infants after the Fukushima Nuclear Disaster

2021 ◽  
Vol 18 (11) ◽  
pp. 5825
Author(s):  
Zhaoqing Lyu ◽  
Sani Rachman Soleman ◽  
Tomoko Fujitani ◽  
Yukiko Fujii ◽  
Manal A. M. Mahmoud ◽  
...  
Keyword(s):  
Breast Milk ◽  
High Sensitivity ◽  
Minimum Detectable Activity ◽  
Activity Level ◽  
Internal Exposure ◽  
Dietary Intakes ◽  
Detectable Activity ◽  
Nuclear Disaster ◽  
Exposure Limit ◽  
Fukushima Nuclear Disaster

The aim of this study was to estimate radionuclide levels in breast milk and the transferred dose to their infants in Sendai (100 km from Fukushima), Japan after the 2011 Fukushima nuclear disaster. Radionuclide concentrations were analyzed in 101 specimens of breast milk collected in 2012. Median values for minimum detectable activities were 0.39, 0.34, 1.1, 1.89, and 17.1 Bq/kg for 137Cs, 134Cs, 131I, 110mAg, and 40K, respectively. Only radionuclides from 40K were detected. To estimate potential exposure and radiocesium dose, we assumed that the samples contained each minimum detectable activity level. The mean minimum detectable activity concentrations (standard deviation) of 137Cs and 134Cs were 0.42 (0.15) and 0.37 (0.14) Bq/kg, respectively. Means of estimated dietary intakes of 137Cs and 134Cs among infants were 0.35 (0.12) and 0.31 (0.11) Bq/day, respectively. The committed effective doses of radiocesium in infants aged 3 and 12 months via breastmilk were estimated at 5.6 (2.1) and 3.3 (1.2) μSv/year, respectively. Dietary intakes of 137Cs and 134Cs in breastfeeding mothers were back-calculated at 1.9 (0.71) and 1.7 (0.65) Bq/day, respectively. The study verified no discernible exposure to radionuclides among infants. The most conservative estimates were below the Japanese internal exposure limit of 1 mSv/year.

The holistic risk analysis of spent fuel pool considering the fuel route risk

2021 ◽  
pp. 1748006X2199851
Author(s):  
Zhixin Xu ◽  
Ming Wang ◽  
Binyan Song ◽  
WenYu Hou ◽  
Chao Wang
Keyword(s):  
Nuclear Power ◽  
Comprehensive Evaluation ◽  
Point Of View ◽  
Spent Fuel ◽  
Nuclear Disaster ◽  
Evaluation Approach ◽  
Fuel Assemblies ◽  
Spent Fuel Pool ◽  
Large Water ◽  
Fukushima Nuclear Disaster

The Fukushima nuclear disaster has raised the importance on the reliability and risk research of the spent fuel pool (SFP), including the risk of internal events, fire, external hazards and so on. From a safety point of view, the low decay heat of the spent fuel assemblies and large water inventory in the SFP has made the accident progress goes very slow, but a large number of fuel assemblies are stored inside the spent fuel pool and without containment above the SFP building, it still has an unignored risk to the safety of the nuclear power plant. In this paper, a standardized approach for performing a holistic and comprehensive evaluation approach of the SFP risk based on the probabilistic safety analysis (PSA) method has been developed, including the Level 1 SFP PSA and Level 2 SFP PSA and external hazard PSA. The research scope of SFP PSA covers internal events, internal flooding, internal fires, external hazards and new risk source-fuel route risk is also included. The research will provide the risk insight of Spent Fuel Pool operation, and can help to make recommendation for the prevention and mitigation of SFP accidents which will be applicable for the SFP configuration risk management.

Healing Fukushima: Radiation hazards and disaster medicine in post-3.11 Japan

2019 ◽  
Vol 49 (3) ◽  
pp. 333-354 ◽  
Author(s):  
Shi Lin Loh ◽  
Sulfikar Amir
Keyword(s):  
Public Health ◽  
Nuclear Power ◽  
Radiation Risk ◽  
Disaster Medicine ◽  
Radiation Hazards ◽  
Medical Practitioners ◽  
Life And Death ◽  
Nuclear Disaster ◽  
Fukushima Nuclear Disaster

What happens when expertise is forced to face disasters of unprecedented scales? How is knowledge produced in critical moments when every action and decision is a matter of life and death? And how are local social networks mobilized to cope with unforeseen crisis? This paper addresses these questions by examining the emergence of disaster medicine expertise in the aftermath of Fukushima nuclear disaster that struck Japan in 2011. Studies on Fukushima’s impact have to date revolved around the suffering of Tōhoku citizens and the development of Japan’s nuclear energy industry. Acknowledging the gravity of such work, this paper offers an alternative, but equally crucial angle on the disaster: that of the medical caregiving and public health system built in response to radiation hazards resulting from the triple meltdowns at Fukushima Daiichi nuclear power station. Through detailed interviews conducted with eight medical practitioners in Fukushima Prefecture, this paper analyses the significance and impact of Japan’s most recent radiation disaster on its public health infrastructure. To describe the contingent nature of radiation disaster medicine developed in response to radiation risk in Fukushima, we draw on Jasanoff’s characterization of scientific knowledge as ‘serviceable truths’ with regards to public policy and the law, suggesting that expertise in relation to disasters is usefully understood in analogous terms.

Use of a Geographic Information System (GIS) in the Medical Response to the Fukushima Nuclear Disaster in Japan

2012 ◽  
Vol 27 (2) ◽  
pp. 213-215 ◽  
Author(s):  
Takashi Nagata ◽  
Yoshinari Kimura ◽  
Masami Ishii
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Medical Association ◽  
Disaster Response ◽  
Geographic Information ◽  
Nuclear Disaster ◽  
Medical Response ◽  
Event Information ◽  
Fukushima Daiichi ◽  
Fukushima Nuclear Disaster

AbstractThe Great East Japan Earthquake occurred on March 11, 2011. In the first 10 days after the event, information about radiation risks from the Fukushima Daiichi nuclear plant was unavailable, and the disaster response, including deployment of disaster teams, was delayed. Beginning on March 17, 2011, the Japan Medical Association used a geographic information system (GIS) to visualize the risk of radiation exposure in Fukushima. This information facilitated the decision to deploy disaster medical response teams on March 18, 2011.Nagata T, Kimura Y, Ishii M. Use of a geographic information system (GIS) in the medical response to the Fukushima nuclear disaster in Japan. Prehosp Disaster Med. 2012;27(2):1-3.

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