Hydrogen with a high concentration level has been detected in pipes connected to the No. 1 reactor containment vessel at the Fukushima Daiichi nuclear power plant, Tokyo Electric Power Co (TEPCO) offcials confirmed Saturday.
However, TEPCO said that there was no danger of an imminent explosion.
According to Fuji TV, TEPCO said that hydrogen of at least 10,000 parts per million was detected in a pipe passing through the containment vessel in the reactor building. In air and liquid, 10,000 ppm is equivalent to 1%. Air containing at least 4% hydrogen and 5% oxygen increases the possibility of an explosion, experts say.
A TEPCO official told Fuji TV that an explosion is unlikely because the concentration of oxygen is low since workers have began injecting nitrogen into the containment vessel in April.© Japan Today