The operator of the plant in Fukushima Dai-Ichi, Tokyo Electric Power (TEPCO), Monday, March 28 fueled doubts about his ability to regain control of the situation by calling for help from the French nuclear experts. Highly radioactive water escaped Monday from the No. 2 engine, Greenpeace reported measuring the level of radioactivity worrying 40 kilometers of the plant, damaged by a March 11 earthquake and tsunami.
Moreover, according to the latest information, plutonium was found Monday in the floor of the central hilly. Five samples were taken at the site. "The (five) samples revealed the presence of plutonium-238, 239 and 240," said a spokesman for TEPCO, saying that "the low concentration does not present a health hazard." Contacted by Le Monde.
fr, Roland Masse, former director of the Office for protection against ionizing radiation (IPO), confirms that plutonium poses little health risk. "It depends on the circuit transmission to humans and doses, but the plutonium is quickly eliminated by the body. However, the presence of plutonium around the plant in Fukushima is worrisome as it demonstrates the existence of leaks in the heart of a reactor.
"A few hours earlier, TEPCO had indicated that highly radioactive water had escaped from the reactor buildings, a discovery that raised fears of a massive pollution around the site, including the sea nearby. "We found the water in wells next to an underground trench leading to Outside the building, with a radioactivity level greater than 1000 mSv per hour, "said a spokesman for the company Tepco.
These wells are located about sixty yards from the Pacific Ocean and contaminated water could be streamed to the shore, he said. This is the first time that engineers Tepco announce the presence of polluted water on the outside. On Monday, the Japan Nuclear Safety has announced that it measured a rate of radioiodine 1150 times the legal limit in seawater collected at thirty meters from the reactors 5 and 6.
So far, tests, TEPCO made by the operator, were charged in the south Fukushima plant 1, the output of units 1 to 4, the most damaged, where the rate of iodine 131 was Sunday at a level close to 2000 times higher than normal. The Greenpeace pleaded Monday for the extension of the evacuation perimeter around the plant: the environmental organization said that the radioactivity is 10 microsieverts per hour in the village of Iitate, 40 km north-west Station, 20 km outside the evacuated area.
But the Japanese Nuclear Safety Agency has estimated that these measures could not be considered reliable. Sign that the situation does not improve, TEPCO has finally asked Monday "support" of French public industrial groups to address the crisis on the site, namely EDF, Areva and the Atomic Energy Commission, said on RTL French Industry Minister Eric Besson.
Asked by or Areva or EDF were able to identify immediately the exact nature of that support. According to TEPCO and Nuclear Safety Agency, the radioactivity released into the sea was diluted with the tides, and the risk of algae and marine animals is not important. Radioactive iodine is reduced by half every eight days.
TEPCO has acknowledged he was wrong Sunday morning by announcing a level of radioactivity "10 million times higher" than normal in a body of water which escaped from the reactor 2, an error deemed "unacceptable" by a spokesman for the Japanese government. "The government has ordered Tepco not again," he added.
Since March 11, the cooling systems of four engines have failed, resulting in multiple incidents and discharges. 
Moreover, according to the latest information, plutonium was found Monday in the floor of the central hilly. Five samples were taken at the site. "The (five) samples revealed the presence of plutonium-238, 239 and 240," said a spokesman for TEPCO, saying that "the low concentration does not present a health hazard." Contacted by Le Monde.
fr, Roland Masse, former director of the Office for protection against ionizing radiation (IPO), confirms that plutonium poses little health risk. "It depends on the circuit transmission to humans and doses, but the plutonium is quickly eliminated by the body. However, the presence of plutonium around the plant in Fukushima is worrisome as it demonstrates the existence of leaks in the heart of a reactor.
"A few hours earlier, TEPCO had indicated that highly radioactive water had escaped from the reactor buildings, a discovery that raised fears of a massive pollution around the site, including the sea nearby. "We found the water in wells next to an underground trench leading to Outside the building, with a radioactivity level greater than 1000 mSv per hour, "said a spokesman for the company Tepco.
These wells are located about sixty yards from the Pacific Ocean and contaminated water could be streamed to the shore, he said. This is the first time that engineers Tepco announce the presence of polluted water on the outside. On Monday, the Japan Nuclear Safety has announced that it measured a rate of radioiodine 1150 times the legal limit in seawater collected at thirty meters from the reactors 5 and 6.
So far, tests, TEPCO made by the operator, were charged in the south Fukushima plant 1, the output of units 1 to 4, the most damaged, where the rate of iodine 131 was Sunday at a level close to 2000 times higher than normal. The Greenpeace pleaded Monday for the extension of the evacuation perimeter around the plant: the environmental organization said that the radioactivity is 10 microsieverts per hour in the village of Iitate, 40 km north-west Station, 20 km outside the evacuated area.
But the Japanese Nuclear Safety Agency has estimated that these measures could not be considered reliable. Sign that the situation does not improve, TEPCO has finally asked Monday "support" of French public industrial groups to address the crisis on the site, namely EDF, Areva and the Atomic Energy Commission, said on RTL French Industry Minister Eric Besson.
Asked by or Areva or EDF were able to identify immediately the exact nature of that support. According to TEPCO and Nuclear Safety Agency, the radioactivity released into the sea was diluted with the tides, and the risk of algae and marine animals is not important. Radioactive iodine is reduced by half every eight days.
TEPCO has acknowledged he was wrong Sunday morning by announcing a level of radioactivity "10 million times higher" than normal in a body of water which escaped from the reactor 2, an error deemed "unacceptable" by a spokesman for the Japanese government. "The government has ordered Tepco not again," he added.
Since March 11, the cooling systems of four engines have failed, resulting in multiple incidents and discharges.
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- FUKUSHIMA: For First Time, Plutonium Has Been Discovered Outside The Nuke Plant (28/03/2011)
- zeitvox: Japan Nuclear Crisis: What About The Plutonium... (24/03/2011)
- What you need to know about the Japan disaster (28/03/2011)
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