Serious danger is the first reactor
In Japan, ongoing maintenance and repair work on the nuclear power plant "Fukushima-1", seriously injured after a devastating earthquake. As the eve of the representative of the International Atomic Energy Agency (IAEA), Andrew Graham, in recent days to overcome the consequences of the accident at the plant has been a positive trend, but the overall situation is still serious.
In turn, the company-operator station Tokyo Electric Power Company (TEPCO) said that all six reactors can lead to a stable state, but it can go on from several weeks to several months. As they say in the organization, now planned to restore permanent power fifth reactor, which was broken the day before, which is why its cooling system had to connect to the backup diesel generators.
According to experts, with high probability the cooling systems can be restored in the third and fourth reactors. However, on the first and second power, the system is likely to completely out of order, so she got in too big earthquake damage.
Meanwhile, on the emergency stations are more and more emergency. This morning, at the first nuclear reactor temperature rose significantly. The interior of the unit warmed up to 400 degrees, while the operating temperature is 302 degrees. As experts suggest, because this could have been a complete meltdown of fuel — so called Meltdown, which threatens unpredictable. On the morning of the damaged reactor up white smoke. He later appeared on the second, third and fourth power units. Experts failed to recall the reason for his appearance, but said that after the release of the background radiation in the reactor began to decline.
Going now emergency liquidation is not without losses. As agency Kyodo reported today, the day before in the turbine hall of the third reactor, a higher dose of radiation received three specialist. It amounted to 170-180 millisieverts per hour. Moreover, we note that the marginal rate of one-year exposure in Japan is only 1 millisievert per year. In addition, with the third power because of the threat of radiation was evacuated staff. Earlier media reported that only highly exposed rescue workers were already 8 liquidators, who are currently sent to the hospital.
Meanwhile, the presence of radioactive substances in the plant is still quite high. In particular, the concentration of radioactive iodine in sea water in the vicinity of the station above normal in 147 times. Seriously polluted and the area within a radius of 40 kilometers around the plant. Taken there before the samples recorded elevated concentrations of hazardous substances. However, as they say in the Ministry of Science and Technology of Japan, it is not so dangerous, it was necessary to evacuate the local population. Recall last week from the emergency station were relocated citizens living within 20 miles of the station.
Still remains a high content of radioactive substances in tap water several prefectures north-east of the country. As for Tokyo, where the day before in the tap water was also detected high content of iodine-131, after the repair work carried out at the local sewage treatment plant, the problem was resolved.
Recall technological disaster occurred at the plant after the devastating earthquake capacity of 9 points, hit the country on March 11. In the following days at the plant "Fukushima-1" was recorded a series of accidents that were caused by a breakdown of cooling systems. As a result, the station was some leakage of radiation, but a more serious scale disaster was avoided. Still later increased radioactivity was detected in several regions of the country, water and food. At the same time, the authorities have assured the population that increase the level of radiation is not a serious threat.