Fukushima Daiichi Nuclear Power Station Unit 3 Regulatory Committee Releases Internal Video Partially Highly Contaminated December 27 5:11
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The Nuclear Regulatory Commission, which resumed investigating the accident at the Fukushima Daiichi Nuclear Power Station, has released a video of the inside of Unit 3 where a hydrogen explosion occurred. Nearly nine years after the accident, high pollution still remains in some areas.
At the time of the accident about nine years ago, Fukushima Daiichi Nuclear Power Station Unit 3 melted down, exploded with hydrogen, and the upper part of the reactor building blew off.
The Nuclear Regulatory Commission's review meeting, which resumed the investigation of the cause of the accident in the fall, entered the Unit 3 on March 12 to investigate the situation of the explosion.
Debris removal of Unit 3 was completed on the 5th floor on the top floor, and fuel removal from the spent nuclear fuel pool was started. However, the floor below it was almost untouched and equipment and debris remained in the video. You can see what it looks like.
And when it comes to the 1st to 3rd floor, the stairs ahead are broken by the effect of the explosion, and it is in a situation that it can not go up to the 4th floor.
Also, on the third floor, the beam supporting the ceiling was greatly bent, and air ducts were also falling. The power of the explosion that occurred near the fifth floor on the top floor reached the third floor, affecting the facility. Can be confirmed.
Contamination remains in some places on each floor, and especially on some of the second floor, measuring high radiation doses of 150 mSv / h, etc., and the Regulatory Commission needs decontamination work for decommissioning in the future It is going to be.
Regulatory Commission also continued future the investigation of the accident, is expected to put together a report to the prospect of the next year.