2016 Fiscal Year Final Research Report

Evaluation of runoff characteristics of radiocesium from different land use and development of the risk management strategy of decontamination of radiocesium contaminated waste.

Research Project

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Project/Area Number	26241023
Research Category	Grant-in-Aid for Scientific Research (A)
Allocation Type	Single-year Grants
Section	一般
Research Field	Modeling and technologies for environmental conservation and remediation
Research Institution	National Institute of Advanced Industrial Science and Technology
Principal Investigator	Yasutaka Tetsuo 国立研究開発法人産業技術総合研究所, 地圏資源環境研究部門, 主任研究員 (60610417)
Co-Investigator(Kenkyū-buntansha)	中村公人京都大学, (連合)農学研究科(研究院), 准教授 (30293921) 村上道夫福島県立医科大学, 医学部, 准教授 (50509932) 塚田祥文福島大学, 学内共同利用施設等, 教授 (50715498) 大西健夫岐阜大学, 応用生物科学部, 准教授 (70391638) 吉川夏樹新潟大学, 自然科学系, 准教授 (90447615) 宮津進国立研究開発法人農業・食品産業技術総合研究機構, 農村工学研究部門地域資源工学研究領域, 研究員 (30757844) 辻英樹国立研究開発法人国立環境研究所, 福島支部環境影響評価研究室, 研究員 (50719599)
Co-Investigator(Renkei-kenkyūsha)	ISHIKAWA Yuriko 産業技術総合研究所, 安全科学研究部門, 主任研究員 (30303001) NAITO Wataru 産業技術総合研究所, 安全科学研究部門, 主任研究員 (10357593) KAWAMOTO Tohru 産業技術総合研究所, ナノ材料研究部門, グループ長 (00356859) HAYASHI Seiji 国立環境研究所, 福島支部, 室長 (10300849)
Project Period (FY)	2014-04-01 – 2017-03-31
Keywords	放射性セシウム / 陸水 / 迅速モニタリング / 流出特性 / リスク評価 / リスク管理 / 溶存態 / 除染
Outline of Final Research Achievements	In this research, we measured the low level dissolved and particulate radiocesium in the fresh water from agricultural land, forest, urban area and reservoir using a rapid monitoring system using nonwoven fabric cartridge filters impregnated with potassium zinc ferrocyanide. Based on the concentration data obtained, discharge characteristics of the radiocesium from agricultural land, forest, urban area, and reservoir were evaluated. Moreover, these concentration data and discharge characteristics were applied to the SWAT and AIST-SHNEL models for predicting long-term environmental dynamics of the radiocesium in the watershed. Finally, we proposed a risk management strategy followed by analyzing effect and cost of risk reduction from several options of decontamination, storage and volume reduction methods of decontaminated waste contaminated by radiocesium.
Free Research Field	環境リスク学