Four leaks found in Japan’s Fukushima Nuclear Plant

The video discusses the Fukushima Daiichi Nuclear Power Station and a coolant leak discovered by TEPCO in 2019. The leak was found in pipes between reactor buildings two and three, resulting in a loss of 20 cubic meters of coolant. The cooling liquid is crucial for disaster prevention as it freezes the soil around the reactors, preventing groundwater from entering the station.

When did TEPCO discover the leaks in the coolant system?

What does the underground wall of frozen soil do for the reactor buildings?