Japanese Journal of Risk Analysis
Online ISSN : 2435-8436
Print ISSN : 2435-8428
Advance online publication
Displaying 1-3 of 3 articles from this issue
  • Michio MURAKAMI, Yasumasa IGARASHI
    Article ID: L-22-005
    Published: July 22, 2022
    Advance online publication: July 22, 2022

    There is concern about harmful rumors associated with the discharge of treated water from the Advanced Liquid Processing System from the Fukushima Daiichi Nuclear Power Station into the ocean, scheduled for the spring of 2023. This letter briefly introduces the mechanism of harmful rumors about foods after the Fukushima Daiichi Nuclear Power Station accident, and discusses perspectives for measures for production, processing, distribution, and consumption, as well as fostering public and international understanding of treated water. The letter highlights that it is important to ensure the effectiveness of thorough measures at each stage of production, processing, distribution, and consumption measures, and in particular, the sufficiency of communication among these sectors. In addition, we mentioned the necessity of information disclosure through explanations, monitoring, and collaboration with various international organizations regarding radionuclides other than tritium, as well as the appeal of foods from production sectors, in terms of fostering public and international understanding of the issue.

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  • Yoshinori MASUKAWA, Akiko SHIRAISHI, Ikumi TAKADA, Atsuko HAYASE, Taku ...
    Article ID: SRA-0420
    Published: July 01, 2022
    Advance online publication: July 01, 2022

    Aiming at solving a social challenge for compatibility of infection risk mitigation with better QOL to prevent viral contact infection via hands, an effect of ethanol (EtOH) combined with benzalkonium chloride (BC) on inactivation of Influenza virus A (IVA) and SARS-CoV-2 was investigated under conditions of exposure time, 30 sec. Although either just 20–30 vol% EtOH or just 0.05w/v% BC were weak for the inactivation, the combination showed the synergic effects. It was also demonstrated that a commercial hand sanitizer containing both 44 vol% EtOH and 0.05w/v% BC is effective to highly inactivate IVA and SARS-CoV-2. The consideration on the practical usage of hand sanitizers suggests that 20–50 vol% EtOH combined with 0.05 w/v% BC would be effective and beneficial. The COVID-19 pandemic has revealed the emerging importance of community infection control which is different from a long-term challenge on hospital infection management, and a new hand sanitizing-system using lower EtOH combined with BC is expected to be a measure of community infection control.

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    Article ID: SRA-0398
    Published: June 14, 2022
    Advance online publication: June 14, 2022

    Recently attention is focused on the disposal of treated radioactively polluted water to the ocean from collapsed Fukushima nuclear power plant. Japanese government claiming safety of the treated water, is trying to mitigate “reputational damages” of Fukushima fishery people. However, there are real risks with the damaged plant, such as lowering of water level in the reactor vessel by a big earthquake early 2021. After the plant accident, Japanese government forced the Fukushima residents to leave their home towns by setting difficult-to-return zones, etc. Besides, Japanese government set new strict rules on radioactive pollution of foods. These regulations have caused difficult situations in living conditions of Fukushima people through long time evacuation and superfluous testing of many foods etc. Consequently, based on these critical governmental regulations, not only “reputational damages”, but real serious damages, are brought about to many people. Rules must be based on basic safe sciences and be reasonable in minimizing possible risks to people and the society. This paper is dedicated to the Ukrainian who suffer from unjustifiable war crime.

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