東京大学医学部附属病院 放射線科 放射線治療部門 > 活動実績・連載・著書・研究業績一覧 > 活動実績

活動実績

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    Support activity for Fukushima

    On March 11 2011, huge earthquake called the Great East-Japan earthquake, tsunami and the Fukushima-Daiichi nuclear disaster damaged large area of the east Japan, especially Iwate, Miyagi and Fukushima; they are included in Tohoku region.

    About 300 thousand people have evacuated their hometown. The half of them are inhabitant of Fukushima. And the third part of them—about 50 thousand people—have evacuated voluntarily even if the government do not make an order to evacuate from their town. This shows that the damage of the nuclear disaster is terribly serious. According to recent research, the level of exposure to radiation (especially internal exposure) of inhabitants of Fukushima does not reach the estimated one. However, the low dose exposure gives mental stress to them. This stress affects the inhabitants of Fukushima’s decision makings about economic and social activity. Their insecurity is not necessarily come from scientific basis. Therefore, it is important to communicate with inhabits of evacuation zone about the low dose exposure and the health effects. We have researched risk communication via support of mental and health care in planned evacuation zone (especially Iitate): it should be at such kind of the huge nuclear plant accidents.

    In this page, we report the results of our research.

    Narration of the Risks of Radiation [PDF (Japanese)]

    Background and outline

    This information book has three interviews with researcher who have taken action for risk communication in evacuation area since the accident at Fukushima-Daiichi nuclear plant. It could be said that the cause of the problem is the lack of expectation for huge nuclear plant accident. Before the accident, there are few guidelines and little mental preparation for such kind of huge nuclear plant accident. This book is organized to consider for a future guideline. The three interviewees have different background and task in distressed area. They tried to communicate with inhabits of evacuation zone in respective roles. They also keep thinking how to communicate with the inhabitants about the risk we have. We hope our experience help all people who try to communicate at such huge accident in future through this information book.


    Framework and process

    This book is deliverable of the Grand-in-Aid for Scientific Research provided by the JST (Japan Science and Technology Agency).

    Interviewers in the book are O.Sakura(The University of Tokyo information science division), N.Mizushima (The University of Tokyo information science division), N.Sakata (The University of Tokyo Hospital).

    Hiroshima, Nagasaki, Chernobyl & Fukushima: A Medical Radiologist’s Advice on Radiation Exposure, Cancer Risks, and Other Threats to Public Health [PDF (English)]

    The author has participated in treatment of cancer patients for a long time as a radiologist of the University of Tokyo hospital. This book conveys valuable information about radiation exposure and carcinogenesis risk; especially children’s health, internal exposure, food pollution and hot spot problem.

    Research article

    Sakumi, A., Miyagawa, R., Tamari, Y., Nawa, K., Sakura, O. & Nakagawa, K. External effective radiation dose to workers in the restricted area of the Fukushima Daiichi Nuclear Power Plant during the third year after the Gread East Japan Earthquake. J Radiat Res published 9 December 2015, 10.1093/jrr/rrv073 (Download)

    福島支援

    2011年3月11日に発生した東北地方太平洋地震を契機とする地震災害、津波災害、そして東京電力福島第一原子力発電所事故は、岩手、宮城、福島を中心に、大きな被害をもたらしました。
    現在でも、約30万人が自宅を離れた避難生活を余儀なくされています。とりわけ、30万人の約半数にあたる15万人が福島県民で、その3分の1にあたる約5万人は、避難指示を受けていないにもかかわらず自身の判断に基づいて避難を続ける「自主避難者」です。原発事故の影響の甚大さを痛感させられます。
    最近までの環境放射線量の測定や調査の結果からは、村民ら、福島県民の被ばく量、特に内部被ばく量は当初危惧されたようなレベルではないことが明らかになっています。しかし、低線量被ばくの問題は住民に大きな心理的影響を与えており、放射線被ばく以外の経済的、社会的諸要因も住民の意思決定に大きく関与していると考えられます。低線量被ばくや避難自体による健康影響などの情報は、それを取り巻く文脈や受け手の状態など、さまざまな環境によって、意味が変化します。「科学的正しさ」がどのような文脈と環境でどのような「意味」に変容するのか、科学コミュニケーションやリスクコミュニケーションを円滑に進める為の系統だった研究例はきわめて少なく、重要な課題であると言えます。そこで、私たちは、大規模原発事故後の望ましいリスクコミュニケーションのあり方を求めるため、福島県住民の地域住民（とりわけ飯館村民）を対象に、地域住民に根ざしたリスクコミュニケーションの実践活動を軸に、低線量被ばくに関する科学的情報が受け取られる際の文脈を解明することを目的に、これまでさまざまな活動を行って参りました。
    ここでは、これまでの活動の成果を報告しています。

    【研究論文】

    T. Mukai, R. Miyagawa, T.Ohta,Y. Nozawa,Y. Tamari and K. Nakagawa “Glycated hemoglobin levels among workers who remained in the area evacuated after the Fukushima Daiichi Nuclear Plant disaster”, Studies in Science and Technology, 2019(Download)
    福島県飯舘村の事業所の従業員を対象に、震災前後でヘモグロビンの値に差があるかを検討した。分析の結果、震災前後で値には差がないことが分かった。

    T. Mukai, R. Miyagawa, T.Ohta,Y. Nozawa,Y. Tamari and K. Nakagawa.”Relationship between death attitude and risk perception of radiation: A comparison between residents in an evacuation zone and Tokyo, Journal of Human Environmental Studies”、Volume 17 (2019-2020) Issue 1, 2019(Download)
    同従業員と東京都民を対象に、死生観と放射能に対するリスク知覚の関連を検討した。分析の結果、死生観とリスク知覚の関連は福島と東京で多少異なることが分かった。

    Sakumi, A., Miyagawa, R., Tamari, Y., Nawa, K., Sakura, O. & Nakagawa, K. External effective radiation dose to workers in the restricted area of the Fukushima Daiichi Nuclear Power Plant during the third year after the Gread East Japan Earthquake. J Radiat Res published 9 December 2015, 10.1093/jrr/rrv073 (Download)

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