At Fukushima Daiichi Nuclear Power Station Unit 1, where decommissioning work is being carried out, it was found that the pressure in the containment vessel containing the reactor was decreasing, and TEPCO may be affected by the earthquake on the 13th of this month. We continue to monitor as there is.
It is said that there is no leakage of radioactive materials to the outside.
At the Fukushima Daiichi Nuclear Power Plant, nitrogen is constantly added to the containment vessel to increase the pressure in order to reduce the risk of hydrogen explosion, but at around 6 pm on the 21st, the pressure at Unit 1 was 0.9 kg from the normal 1.2 kg pascal. It was confirmed that it had dropped to Pascal.
At Unit 1, it was confirmed that the water level in the containment vessel had dropped after the earthquake on the 13th of this month, and at TEPCO, the damaged part created during the nuclear accident 10 years ago was exposed due to the drop in water level, and gas from there. May have leaked and the pressure dropped.
Water injection into the containment vessel is ongoing and there are no safety issues.
In addition, there are no abnormalities in the values of monitoring posts that measure the amount of radiation on the premises, and there is no leakage of radioactive substances to the outside.
TEPCO will continue to monitor data such as containment vessels.