Status of study of long-term assessment of transport of radioactive contaminants in the environment of Fukushima; As a part of dissemination of evidence-based information

Tsuruta, Tadahiko; Niizato, Tadafumi; Nakanishi, Takahiro; Dohi, Terumi; Nakama, Shigeo; Funaki, Hironori; Misono, Toshiharu; Oyama, Takuya; Kurikami, Hiroshi; Hayashi, Seiji*; et al.

JAEA-Review 2017-018, 86 Pages, 2017/10

JAEA-Review-2017-018.pdf:17.58MB

Since the accidents at Fukushima Daiichi Nuclear Power Plant following the Tohoku Region Pacific Coast Earthquake on March 11th, 2011, Fukushima Environmental Safety Center has carried out research on natural mobilization of radionuclide (especially radiocesium) and future forecast from forest to water system and surrounding residential areas. The report summarizes the latest results that have been accumulated from each study field, of our agency together with the other related research organizations. The contents of the report is to be used as evidence-based information for the QA-styled pages in the website of JAEA Sector of Fukushima Research and Development at the time of next renewal.

Challenges for Fukushima environmental recovery and relevant educational expectation for ENEP

Miyahara, Kaname

no journal, , 

This presentation will comment on relevant educational expectation for ENEP based on challenges for Fukushima environmental recovery.

JAEA's challenges for Fukushima environmental recovery and relevant expectation for National Institute of Technology, Fukushima College

Miyahara, Kaname

no journal, , 

This presentation focuses on challenges for enhancing Fukushima environmental resilience to address the needs for better scientific and technological capabilities to assess, predict, and minimize the impact of radiological contamination and illustrate how to enhance the understanding of radiation and associated risks in the public. These long-term challenges need to involve young researches, therefore this presentation includes comments on relevant expectation for National Institute of Technology, Fukushima College.

Applications of radiocesium migration models to Fukushima environmental issues, 1; Overview

Kurikami, Hiroshi; Sakuma, Kazuyuki; Malins, A.; Yamada, Susumu; Machida, Masahiko

no journal, , 

Over recent years after the accident at the Fukushima Dai-ichi Nuclear Power Plant, we have developed and applied several numerical models covering various time- and spatial-scales to tackle environmental issues in Fukushima. Each issue requires selection of a suitable model. The issues we have tackled thus far include medium- to long-term prediction of the redistribution of radiocesium and changes of radiation dose rates in the air, estimation of discharge amounts of radiocesium from land to the ocean, understanding the behavior of radiocesium in rivers and lakes during heavy rainfall events, and evaluation of the effect of radocesium migration in the environment on forestry and fishery products. In this presentation, we give an overview of our modeling studies on environmental issues in Fukushima.

Prospects for environmental radioactivity assessment considering environmental dynamics of radionuclides and human activities

Kurikami, Hiroshi; Sasaki, Yoshito; Terashima, Motoki; Yoshimura, Kazuya; Funaki, Hironori; Sanada, Yukihisa

no journal, , 

CLADS started a study on environmental radioactivity assessment considering environmental dynamics of radionuclides and human activities under the contract with F-REI. We plan to clarify the relationship between human activities and environmental dynamics after the lifting of the evacuation order through field surveys, laboratory tests, and numerical simulations, and to conduct a comprehensive environmental radioactivity assessment based on exposure doses. We also plan to design a website for information dissemination.