On the premises of the Fukushima Daiichi Nuclear Power Station, where decommissioning work is being carried out, a gel-like mass with a relatively high radiation dose was found, and TEPCO said that there is a possibility of radioactive waste flowing out of the corroded container. I will investigate the cause in detail.
According to TEPCO, on the 24th, a gel-like mass with a relatively high radiation dose of 13 millisieverts per hour was found on the ground in the area where radioactive waste from the Fukushima Daiichi nuclear power plant was stored.
At this place, from January to this month, I was working on moving multiple containers containing waste to a dedicated building, and when I investigated, one of them was 20 in length toward the bottom of the side. It means that a rust about 8 cm wide was found.
Wastes such as paper, cloth, and resin pipes produced after the accident were stored in the container, and the radiation dose on the surface was 10 millisieverts per hour.
For this reason, TEPCO considers that the lumps found may be waste that has flowed out of the corroded container, collects and analyzes it, and investigates the condition and contents of the container in detail.
TEPCO reported this to the Nuclear Regulation Authority and surrounding local governments on the 25th based on the law.
On the 2nd of this month, an alarm was sounding in the drainage channel on the sea side of this place to inform that the concentration of radioactive materials had increased, and we are investigating the relationship.
It is said that there is no change in the values of the monitoring post at the boundary of the site.