On the 16th, it was found that a male worker who was inspecting piping using radiation at an oil refinery in Ibaraki Prefecture made a mistake in handling the equipment and was exposed to 15 millisieverts of radiation.
The company that undertook the work says that there is no health impact, but the workers are checking their health conditions at medical institutions.
According to the Nuclear Regulation Authority, around 1:30 pm on the 16th, a male worker at an oil refinery in Ibaraki Prefecture was exposed to radiation of 15 millisieverts, according to the inspection company Wizsol. There have been reports.
The worker repeatedly took pictures of the inside of the pipe by emitting radiation from a portable device. It means that we worked closely together.
The maximum annual exposure dose for workers who work with radiation is 50 millisieverts, but if the unplanned exposure dose exceeds 5 millisieverts in a single operation, they must report it to the government. It is stipulated by law.
The work was done by two people, but the other person was in a supporting role and the exposure dose was 4.02 millisieverts.
The company says that there is no possible impact on health at this time, but the two have been examined by a medical institution on the 17th to confirm their health status.
WizSol is headquartered in Hiroshima City, and three years ago in April 2019, a worker at a chemical factory in Yamaguchi Prefecture was exposed to radiation of 9 millisieverts due to an error in the procedure for handling inspection equipment. I was.
"Wizsol" said, "There was an error in handling equipment that was different from last time. We would like to thoroughly implement measures to prevent recurrence so that it does not happen again."