著者
森澤 眞輔
出版者
The Society for Risk Analysis, Japan
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.20, no.2, pp.115-123, 2010 (Released:2010-11-19)
参考文献数
11
被引用文献数
1

The health risk due to the exposure to hazardous chemicals in the environment has been traditionally evaluated mainly based on the dose-response relationship determined for human, including the relationship of test animals with appropriate safety factor. However our daily life faces to so many varieties of hazardous chemicals that have not enough toxicity information for health risk evaluation. Here, a new challenge for health risk evaluation framework is proposed to reinforce the traditional framework with the sequential three models: (1) the PBPK model to convert the external exposure dose of chemicals into the internal dose in the target organ/tissue, (2) the dose-response relationship determined at cellular level of the target organ/tissue, and (3) the adverse effect-developing model to convert the change in cellular level into the somatic health risk, e. g., a mathematical cancer model. The expected contribution and utilities of the new framework are also discussed together with the modified framework to use the radiation equivalent dose of chemicals. The new framework, combined with the traditional, is highly expected as an effective and comprehensive health risk evaluation framework especially for new hazardous chemicals in our living environment.
著者
斎藤 育江 大貫 文 戸高 恵美子 中岡 宏子 森 千里 保坂 三継 小縣 昭夫
出版者
The Society for Risk Analysis, Japan
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.21, no.2, pp.91-100, 2011 (Released:2012-01-22)
参考文献数
36
被引用文献数
5

In the 1990s, the so-called ‘sick house syndrome’ became an area of public concern. Consequently, the Ministry of Health, Labour and Welfare of Japan established Indoor Air Guidelines for 13 compounds as a preventive measure against sick house syndrome. In recent years, lower concentrations of the 13 chemicals in newly built houses diminished the health risk from those chemicals. As a result, instead of the regulated chemicals, unregulated chemicals such as methylcyclohexane, dichloromethane and acetone became common in building materials. These chemicals have also been found to cause sick house syndrome. Thus, in addition to the regulation of individual chemicals, it is now believed that it is necessary to minimize the total amount of volatile organic compounds (VOCs) in order to diminish the health risk from indoor air chemicals.
著者
辻 さつき 神田 玲子
出版者
一般社団法人日本リスク学会
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.18, no.2, pp.2_33-2_45, 2008 (Released:2012-08-22)
参考文献数
15

Risk assessment of technologies and social activities involves subjective judgment as one of its components, which depends on the perception of risk by individuals. In the present study, we undertook a survey of public perceptions regarding the social issues and risks, the images of radiation, and acceptance of its application and health risk.The majority identified global warming as highly risky among social issues related to technology, and smoking among health-damaging issues, but not radiation-related items such as natural radiation, artificial radiation, and X-ray/CT examinations. In general, a sexual distinction was observed regarding perceptions of sick house and food safety. Forty percent of the public inaccurately believed that the main source of daily exposure was nuclear facilities. Many citizens associated the word of radiation with medical exposure, death/damage/disease and nuclear weapon including A.bomb, and connected the health effects of radiation with cancer and leukemia. However, majority did not bring up any image from the terms of “radiation” and “health effects of radiation”
著者
木下 冨雄
出版者
THE SOCIETY FOR RISK ANALYSIS, JAPAN
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.19, no.3, pp.3_3-3_24, 2009 (Released:2011-11-01)
参考文献数
113

The forms of risk communication in Japan changed drastically after the Hanshin-Awaji Earthquake. While the pre-Earthquake risk related information was based on the myth of zero-risk, the post-Earthquake risk communication has required a much higher level of fair and open information, which is now the main current of this field. At the same time, other theoretical and practical problems have recently been founded. Those problems include (1)the philosophy and value system underlying risk communication, (2)the causal relation between risk communication and credibility, (3)whether the citizen really want risk information or not, (4) whether citizen's risk perception is emotional or not, (5)the organizational climate as a factor in successful risk communication, (6)misunderstanding of the meaning of precautionary principle, (7)the skill of the risk communicator, (8)the importance of wording and logic in risk communication, (9)how to construct good relations between risk agent and mass media , etc. The purpose of this paper is to integrate the notion of risk communication with the macro view in both time and space, which used to be based on the idea of a one-shot and local solution to future disasters.
著者
小林 憲弘 杉本 直樹 久保田 領志 野本 雅彦 五十嵐 良明
出版者
一般社団法人日本リスク研究学会
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.23, no.2, pp.65-70, 2013 (Released:2014-05-30)
参考文献数
12
被引用文献数
1

We have identified the cause of the formaldehyde pollution that occurred in the Tonegawa River system in May, 2012. We analyzed 10 river water samples that were collected in the Edogawa River using a liquid chromatography/ tandem mass spectrometry (LC/MS/MS) and a liquid chromatography/ ion-trap time-offlight mass spectrometry (LC/IT-TOF-MS). As a result, hexamethylenetetramine was detected in all the water samples. Further, significant relationship was observed between the hexamethylenetetramine and the formaldehyde concentration in the same sample (r2=0.9576). Furthermore, formaldehyde concentration calculated by the reaction formula was very similar to the measured formaldehyde concentration in each sample. Therefore, we concluded that the cause of the formaldehyde pollution was the inflow of hexamethylenetetramines in the river system. Further, we focus the future issues on the management of unregulated chemicals in drinking water.
著者
村上 道夫
出版者
一般社団法人日本リスク研究学会
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.26, no.3, pp.141-149, 2016-12-25 (Released:2017-02-10)
参考文献数
73

At processes of risk communication, it is important to capture the meanings of “safety”, which citizens use in everyday speech. In this study, I focused on the interpretations of safety and reassurance in dictionaries as everyday words, and comprehensively surveyed 18 representative dictionaries (60 when revisions are included) since the Meiji Period to summarize historical changes and current status of them. While reassurance was interpreted from psychological aspects in all the dictionaries, safety had two types of interpretations of the word. The first type of the interpretation contained psychological aspects. It could not be judged whether the second type of the interpretation included psychological aspects or not. There were no significant differences in uses of these types of interpretations in dictionaries between before the World War II and the present. This study highlights that the interpretations of safety are complex and differ among dictionaries.
著者
小島 直也 東海 明宏 中久保 豊彦
出版者
一般社団法人日本リスク学会
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.25, no.3, pp.131-138, 2015-12-25 (Released:2015-12-28)
参考文献数
24

It is thought that penetration of Next Generation Vehicle (NGV) will decrease human health risk by air pollution, however it is unknown that increasing of electric demand by using Electric Vehicle (EV) caused risk transference, a type of risk tradeoff, around thermal power generations. We aim to construct the model that can show human health impact distribution by both electric production and transportation considering NGV penetration. We applied this model for (re-)estimating NOX density to 3 cases with the composition of 2010 and 2030 (future) passenger vehicles. Results show that (1) in the case of 39% EV prevalence, the number of patient who has respiratory disease decreased 486.4 people, and (2) from the comparison with the case of 10% EV prevalence, there was not risk transference like increasing patients around electric plant. And such benefit mainly enjoyed people in metropolitan area.
著者
齊藤 修
出版者
The Society for Risk Analysis, Japan
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.20, no.2, pp.97-106, 2010 (Released:2010-11-19)
参考文献数
34
被引用文献数
1

Risk management involves analyzing various risks and their tradeoffs to balance social, economic, and environmental objectives. This article reviews the research history and core terms of risk tradeoffs. It also explores the nature of risk tradeoffs in the context of interlinkage research, and proposes a typology of risk tradeoffs and conceptual framework for risk tradeoff analysis.
著者
斎藤 育江 大貫 文 戸高 恵美子 中岡 宏子 森 千里 保坂 三継 小縣 昭夫
出版者
一般社団法人日本リスク研究学会
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.21, no.2, pp.91-100, 2011
被引用文献数
1

In the 1990s, the so-called ‘sick house syndrome’ became an area of public concern. Consequently, the Ministry of Health, Labour and Welfare of Japan established Indoor Air Guidelines for 13 compounds as a preventive measure against sick house syndrome. In recent years, lower concentrations of the 13 chemicals in newly built houses diminished the health risk from those chemicals. As a result, instead of the regulated chemicals, unregulated chemicals such as methylcyclohexane, dichloromethane and acetone became common in building materials. These chemicals have also been found to cause sick house syndrome. Thus, in addition to the regulation of individual chemicals, it is now believed that it is necessary to minimize the total amount of volatile organic compounds (VOCs) in order to diminish the health risk from indoor air chemicals.
著者
田中 極子
出版者
The Society for Risk Analysis, Japan
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.21, no.3, pp.195-202, 2011 (Released:2012-03-27)
参考文献数
17

The H1N1 influenza pandemic and the foot-and-mouth epidemics, which both caused worldwide panic and economic disruption, are examples of infectious diseases that do not only directly harm human health, but also bring about social and economic turmoil. Given the possibility of such biological agents being used in acts of bio-terrorism, providing counter-measures against such threats in order to minimize social and economic damage is a major challenge for the modern world in creating an environment in which one can live without fear. Dealing with this challenge requires a full-scale global approach comprising all relevant actors not only in the public health sector, but also the public and private sectors of animal and plant epidemiology, security, law enforcement, as well as academia and industry. The Biological Weapons Convention (BWC) is also envisaged to play a role in countering biological threats. This article is to consider the ways to strengthen the effectiveness of the BWC with a view towards the coming 7th Review Conference of the BWC in December this year.
著者
金澤 伸浩 田中 豊 小山 浩一 内藤 博敬 伊川 美保 中山 由美子
出版者
一般社団法人日本リスク学会
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.29, no.4, pp.243-249, 2020-05-25 (Released:2020-05-26)
参考文献数
35

It is required to make risk education popular to improve risk literacy of citizens. Although several kinds of risk education programs have been developed, the effect of the education by those should be evaluated and the method to measure risk literacy was not established. Therefore, measurement scales of the risk literacy have been developed through web-based questionnaire research. As the result, measurement scales have been established consisting of six factors; zero-risk bias, trade-off on risk versus benefit, trade-off on risk versus risk, paradox on risk perception, basic knowledge on risk and risk perception bias. The scales consisted of four questions for each factor express the factors well. The scales are thought to be useful for improving risk education program and risk communication.
著者
保高 徹生
出版者
一般社団法人日本リスク学会
雑誌
日本リスク研究学会誌 (ISSN:09155465)
巻号頁・発行日
vol.29, no.3, pp.171-175, 2020-03-25 (Released:2020-04-02)
参考文献数
13

In this paper, we discussed the role of the risk analysis for recovery activity for big environmental disaster, such as the Fukushima Daiichi nuclear power accident. We reported on the result of the cost and risk analysis for decontamination, scenario evaluation of applying the volume reduction technology, re-use and final disposal of contaminated soil, decision making and communication and what is important for the next large-scale environmental disasters.