Fukushima nuclear accident in the past ten years, there are still pollution and dust in the nuclear power plant

　　China News Service, October 9th. According to Kyodo News Agency, Japan’s Atomic Energy Regulatory Commission conducted an on-site investigation on the reactor building of Unit 2 of the Fukushima Daiichi Nuclear Power Plant on the 8th.

The results showed that although nine and a half years have passed since the Fukushima nuclear accident, there are still dust contaminated with radioactive materials floating in the factory.

Data map: Fukushima Daiichi Nuclear Power Plant.

　　According to reports, the investigation started in the morning. After 13 members of the investigation team including the chairman of the Regulation Committee, including the chairman of the regulation committee, including masks and protective clothing, entered the plant, they sampled the dust attached to the walls of each floor.

The Regulatory Commission revealed that a large amount of radioactive material is attached to the inner side of the containment cover of the reactor on the 5th floor, which may be the reason for the higher radiation.

　　According to the report, in the next step, the investigators will analyze the types of radioactive materials contained in the samples to find out the spread of the radioactive materials leaked from the containment in the plant.

　　After the investigation, Mada told the media, “The accident has been a long time ago, and the contaminated dust is still floating (inside the factory), which is incredible.”

　　Relevant departments plan to take out the molten nuclear fuel for Unit 2 under this investigation in 2021. This is also considered to be the biggest difficulty in the scrapping operation of nuclear power plants.

However, it is said that in the investigation on the 8th, only about 10 minutes after entering the plant, the radiation amount was close to the mission estimate. In this regard, Mada said that he felt that “in the future work, it is difficult for the staff to enter. ".

　　According to reports, the Regulatory Commission conducted similar investigations from 2013 to 2014. At that time, some places were inaccessible due to high radiation levels.

With the decline in radiation levels, the investigation will be restarted in the fall of 2019, and the investigation team plans to collect the investigation report in 2020.