Contaminated water is flowing into the Fukushima building 1

January 18, Tokyo Electric Power Company (TEPCO) said water that could contain radioactive material is flowing into a sewer on the first floor of a building containing reactor No. 3 at Fukushima Power Plant No.1.

>>>Japan: 1.6 million tons of contaminated water seeps into the ground

The robot's camera that cleans the garbage inside the building has discovered a water leak of up to 30cm wide. However, TEPCO confirmed that this leaked water did not escape the building.

TEPCO is still pouring cooling rods of fuel rods into kilns 1, 2 and 3 to prevent fuel from melting and water leaking through the damage points of the No. 3 tank.

Four nuclear reactors and many contaminated water tanks at Fukushima nuclear power plant in February 2013.(Photo: Kyodo / TTXVN)

TEPCO is investigating whether the leaked contaminated water the robot rotates is the water used to cool the furnace.

The concentration of radioactivity on the first floor of reactor 3 is up to 30 (milisievert) mSv / hour.

TEPCO said it is still unclear the composition and amount of radioactive material in the water sample found because the level of radiation inside the conventional reactor is also quite high.

Reactor No. 3 was one of four reactors of the Fukushima 1 Plant damaged after a nuclear power failure in March 2011 after a 9-magnitude earthquake struck the plant that damaged the system. backup power.

According to experts, the process of dismantling the fuel rods and the plant's reactors could take decades and cost trillions of yen.

On December 18, TEPCO said it would permanently shut down the number 5 and No. 6 reactors, the only two that were only slightly damaged after the earthquake and tsunami.