Regarding the so-called "black rain" immediately after the atomic bomb was dropped on Hiroshima, a national study group was held to verify the ideal state of the relief area, and it was reported that soil surveys were started in Nagasaki City in addition to Hiroshima City. I did.
In a trial in which residents complained that they had suffered health damage due to the so-called "black rain", in July last year, the Hiroshima District Court recognized all of them as atomic bomb survivors and expanded the area where the Ministry of Health, Labor and Welfare's study group could receive assistance. We are verifying in the field of view.
The third meeting of the study group was held on the 18th, and an expert research team made an interim report.
Regarding the soil survey, it was reported that the soil was collected in Hiroshima City and Nagasaki City from this month and the analysis is proceeding.
The aim is to investigate whether radioactive substances are detected in order to reproduce the weather conditions at that time and the process of mushroom cloud formation by simulation, and about the soil collected in Nagasaki city from the 1960s to the early 1970s. Is also analyzing.
It was also reported that research is underway to create a meteorological model based on the opinions of meteorological and radiation experts.
The study group will also search the literature of American research institutes and medical libraries in order to investigate the weather conditions at the time the atomic bomb was dropped.