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JAEA Reports

Study of receptivity of wastes in natural environment (Joint research)

Tanaka, Masaru*; Gofuku, Akio*; Ishizaka, Kaoru*; Sato, Kazuhiko; Nagahama, Yoji

JAEA-Research 2014-019, 103 Pages, 2014/12

JAEA-Research-2014-019.pdf:12.1MB

We had been conducting a research on risk perception and confidence-building among stakeholders regarding environmental remediation of Uranium mine site and disposal of industrial waste from FY 2007. FY 2011, we study how the Great East Japan Earthquake and Fukushima nuclear accident affects public risk perception. Therefore, a questionnaire survey on public risk perception of environmental remediation of Uranium mine site and disposal of the industrial waste in Okayama prefecture had been carried out. Another questionnaire survey on public risk perception of the disposal of disaster waste for residents in Okayama prefecture has been carried out. Following are some of the results: (1) For risk perception regarding environmental remediation of Uranium mine site, "knowledge of radiation" and "Concern about radioactive material" and "Information literacy" did not change significantly. Conversely trust in "Public administration" and "facility owner" and "Science and technology" was decreased significantly. (2) For risk perception regarding disaster waste, many people recognize the need for wide area disposal of disaster waste. Conversely, many residents are concerned about radioactive materials.

JAEA Reports

Questionnaire survey on public risk perception of the wide area disposal of disaster waste generated after the Great East Japan Earthquake for residents in Okayama prefecture (Joint research)

Tanaka, Masaru*; Gofuku, Akio*; Ishizaka, Kaoru*; Sato, Kazuhiko; Nagahama, Yoji

JAEA-Research 2012-016, 23 Pages, 2012/07

JAEA-Research-2012-016.pdf:9.41MB

Japan Atomic Energy Agency, Okayama University, Tottori University of Environmental Studies and Research Institute of Solid Waste Management Engineering had been conducting a research on risk perception and confidence-building among stakeholders regarding environmental remediation of Uranium mine site and disposal of industrial waste. Cognitive structure of public on safety for wide area disposal of disaster waste which had been generated from Iwate and Miyagi prefectures after the Great East Japan Earthquake would be important from a view of our research. Therefore, a questionnaire survey on public risk perception of the disposal of disaster waste for residents in Okayama prefecture has been carried out. The results are; (1) 93% of respondents support the local government cooperation for the disposal, (2) 87% of respondents support the acceptance and the disposal in their home town, and (3) 70% of respondents were concerned about radioactive contamination caused by the disposal.

JAEA Reports

Study of RC method on reclamation project in the uranium mine, 2 (Joint research)

Tanaka, Masaru*; Gofuku, Akio*; Ishizaka, Kaoru*; Tokizawa, Takayuki; Sato, Kazuhiko; Koga, Osamu

JAEA-Research 2010-054, 76 Pages, 2011/02

JAEA-Research-2010-054.pdf:4.46MB

To obtain public understanding on the uranium mining sites reclamation at Ningyo-toge Environmental Engineering Center, it is necessary to conduct appropriate Risk Communication (RC). In this study, to discuss the appropriate Risk communication method on the uranium mining sites reclamation, making of explanatory material by university student, and questionnaire survey on the risk perception were conducted.

Oral presentation

Establishment of dissemination technique on reclamation project at the Ningyo-toge uranium mine, 1; Making of dissemination material

Gofuku, Akio*; Ishizaka, Kaoru*; Tanaka, Masaru*; Tokizawa, Takayuki; Sato, Kazuhiko; Koga, Osamu

no journal, , 

It reports on the finding obtained in the university student's making the dissemination material on reclamation project at the Ningyo-toge uranium mine.

Oral presentation

Establishment of dissemination technique on reclamation project at the Ningyo-toge uranium mine, 2; Dissemination to high school student

Koga, Osamu; Tokizawa, Takayuki; Sato, Kazuhiko; Gofuku, Akio*; Ishizaka, Kaoru*; Tanaka, Masaru*

no journal, , 

It reports on the result of verifying the effects of understanding and the concern, etc. by explaining the dissemination material on reclamation project at the Ningyo-toge uranium mine that the university student made to the high school student.

Oral presentation

Modeling of resident consciousness of safety of industrial waste landfill site

Ishizaka, Kaoru*; Tanaka, Masaru*; Gofuku, Akio*; Tokizawa, Takayuki; Sato, Kazuhiko; Koga, Osamu

no journal, , 

This study aimed to: (1) extract the influence factors of the public perception of security to the industrial waste landfill site, (2) examines the structural equation model with latent variables, (3) compare the characteristic of 2 area based on the sense of ownership for landfill site problem. A series of structural equation modeling (SEM) resulted in the following findings. Risk perception for landfill site and trust in the disposal services were directly predicted by negative image for landfill site. In the area where the sense of ownership is strong, trust in the disposal services has a strong influence for public perception of security. On the other hand, in the area where the sense of ownership is week, risk perception has a strong influence relatively.

Oral presentation

Sence of ownership and evaluation of safety; Questionnaire survey for reclamation project in the uranium mine

Ishizaka, Kaoru*; Gofuku, Akio*; Tanaka, Masaru*; Tokizawa, Takayuki; Sato, Kazuhiko; Koga, Osamu

no journal, , 

To obtain public understanding on the uranium mining sites reclamation at Ningyo-toge Environmental Engineering Center, it is necessary to conduct appropriate Risk Communication (RC). In this study, to discuss the appropriate Risk communication method on the uranium mining sites reclamation, we conduct questionnaire survey and SEM analysis. The results of the pass analysis are as follows: (1) In the group which has high-sense of ownership, risk acceptance has a strong impact on sense of security for uranium mining sites reclamation, (2) In the group which shows low-sense of ownership, hatred for radioactive ray has a strong impact relatively.

Oral presentation

Factor affecting of safety estimate of industrial waste landfill site

Ishizaka, Kaoru*; Tanaka, Masaru*; Gofuku, Akio*; Sato, Kazuhiko; Tokizawa, Takayuki; Koga, Osamu

no journal, , 

The present study aims to understand the factor that influences citizens' senses of security to construct the risk communications technique in the industrial waste landfill site based on the consideration of the regional society. It was quantitatively shown that the group with high sense of participant was judged from the reliability to the entrepreneur, and judged oppositely by the group with low sense of participant based on the image of the adverse effect of the repository site in addition to the reliability to the entrepreneur when the citizens evaluated the safety of the site.

Oral presentation

Proposal of training menus for improving resilient response ability, 1; A Training menu to grasp functional information of plant components

Gofuku, Akio*; Kitamura, Masaharu*; Oba, Kyoko

no journal, , 

In order to further improve the safety of nuclear power plants, it is necessary to upgrade the plant's hardware such as safety equipment and to improve the ability of operators and power plant workers to handle abnormalities. This study propose training for grasping functional information of plant equipment, which has not been emphasized so much in the past.

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