Development of a method to evaluate effects of decontamination for residents return to evacuation order areas surrounding the Fukushima No.1 nuclear power plant

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04068
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Civil and environmental engineering
• Research Institution: Kyoto University
• Principal Investigator: Shimada Yoko 京都大学, 工学研究科, 准教授 (00314237)
• Co-Investigator(Kenkyū-buntansha): 米田 稔 京都大学, 工学研究科, 教授 (40182852)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 放射線 / 除染 / モデリング / 最適化 / 森林 / セシウム / 土壌

Outline of Final Research Achievements

Based on the decontamination data of air dose rate and surface concentration of radioactive cesium, relationship between the decontamination effect and pre-decontamination radiation dose, monitoring term of pre-decontamination, and types of vegetation in forests and city areas are analyzed considering effects of the background radiation in soil surface and the weathering after decontamination. By reference to this analyzation, we tried to develop a method to establish optimal decontamination plans for residents return to evacuation order areas surrounding the Fukushima No.1 nuclear power plant from the perspective of both ways of decontamination and costs. Achievement of this study can supply a useful knowledge for the future decontamination policies.

Free Research Field

環境リスク工学