Although higher than normal levels of radiation in the ocean water in the vicinity of the plant have been found in the last few days, the breach discovered the first identified direct leak of such high levels of radiation into the sea Saturday.
The leak, reactor, see a maintenance pit in the vicinity of the plant No. 2 is a fresh reminder of the dangerous side effects of the strategy of the reactors and spent fuel storage pools, cooling of in them hundreds of tons of water per day pumps. While much of the water has evaporated, a significant portion has transformed also into runoff.
Said the Japanese authorities, they have little choice right now, because the normal cooling systems in the work is function untüchtig are and released more radiation, meltdown would complete when the reactors were allowed, or if the Poles caught fire.
Three workers at the plant, operated by Tokyo electric power company, have hurt was by you a reactor complex jump into pools of contaminated water.
Workers are the excess water draining race, but they have struggled to find out how to save it. On Saturday, some contaminated water in a barge to release was transmitted from space in other tanks on land. A second barge came also.
Satoshi Sato, a consultant to the nuclear energy industry and a former engineer said "More water, the more problems adding, that they generate," with General Electric. "It is only a matter of time before the leaks in the ocean grow."
Hidehiko Nishiyama, Deputy Director-General who said Japan's nuclear and Agency for industrial, it is possible that water in the pit of the reactor, although it also possible that it came from other sources, such as the leaky pipes. In both cases would each leak by the enormous amounts of water is used, aggravated to cool the reactor.
Tetsuo Iguchi, a professor in the Department of quantum engineering at Nagoya University, said that the leak could be discovered that Saturday raised fears that the water contaminated by many more undiscovered sources from seeping. He said that, if workers quickly leaking could stop Tokyo Electric could be forced to evaluate the food and bleed strategy, where they flood the reactors and fuel ponds with water and let then the steam, which you created.
Mr. Iguchi said "It is crucial, the fuel rods to keep cooling, but these leaks are dangerous, on the other hand,". "they can to keep high amounts of radiation longer leaking much not the work," he said.
Workers discovered a crack about eight inches wide in the maintenance of mine which is between the No. 2 reactor and the sea and cable is used to power said sea water pumps, Japan's nuclear regulator.
The space above the water in the sea leaking had a radiation reading of more than 1,000 millisieverts per hour, Mr. Nishiyama said, a level which could be dangerous for the people. Tests of water into the mine later showed the presence of a million becquerels per liter of iodine-131, a radioactive substance. That iodine 10,000 times what is normal, that water is in the works. Iodine-131 has a half-life of about eight days.
Also, Mr. Nishiyama said that higher than normal level of radioactive substances, about 25 km south of Fukushima plant, were much further recognized as was previously been reported.
At the time the leak was discovered, deep pit with four to eight inch contaminated water was filled according to the Tokyo Electric. But it was impossible to immediately judge how much water had fled and such for a while.
Workers to try that crack fill with concrete started had Mr Nishiyama said late Saturday.
Saturday's announcement a leak came a day after Energy Secretary Steven Chu, said the United States, that about 70 per cent of the core of a reactor Fukushima work suffered heavy damage. The statement was on how close the system to a complete meltdown came after it was hit by a severe earthquake and massive tsunami on 11 March the most specific yet by an American official.
The crisis in the nuclear power plant has overshadowed the recovery efforts on the way to Japan since the quake. Police National Agency of the country said that the official death toll from the disaster 11.800, had surpassed, while more than 15,500 as missing have been listed.
Saturday, his first visit to the region since the disaster, and he promised everything possible to help do former Prime Minister Naoto Kan.
Mr Kan said "We are together with you to the end," while riding Rikuzentakata, a town of about 20,000 people, which was destroyed. "You try your best everyone."
Dressed in a blue work jacket, Mr Kan also with refugees in a reason and Hauptschule stranded visited and then visited a sports complex about 20 miles south of nuclear plant. The plant had turned into a staging area for firefighters, self-defense forces and workers of Tokyo Electric.
Ken Ijichi and Moshe comma contributed reporting.
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