The concentrations of tritium in the water at the Fukushima-1 rolls over

30.07.2013

© Tokyo Electric Power Co / Handout | Reuters

Japanese experts from the company TEPCO, the operator of an emergency station "Fukushima-1", released new data on the environmental situation at the nuclear power plant. According to the latest results of the analyzes of water samples taken from the second power station, the concentration of tritium in the water about 145 times greater than the maximum rate and the order of 8.7 million becquerels per liter.

Water samples were taken last Friday in a tunnel near the turbine section of the second reactor "Fukushima-1". The distance from this point to the coastline — no more than 50 meters. Radioactive tritium, albeit in smaller concentrations are found in sea water taken in close proximity alarm station.

Previously, experts tested the water at TEPCO nuclear power plant accident on the content of other radioactive isotopes. It was found that the concentration of cesium-134 is greater than the rate of 150 times, cesium-137 — to 200-fold. At the same time the most dangerous in the present case is that the experts can not determine the cause of the rapid growth of the level of radiation in the past six months.

Now Japanese scientists have put forward the idea that water, contaminated by radiation, may have accumulated in the tunnel in March 2011, when the accident occurred at nuclear power plants, and all the while concentrations remained at the same high level.

When in March 2011 the IAEA has raised the level of danger to the Japanese nuclear power plant "Fukushima-1" to the highest, the seventh level on a scale INES (International Nuclear Events Scale), who had appropriated only the Chernobyl accident in 1986, many experts have expressed doubts the legality of such an assessment. In the end, the level of emissions at Fukushima was only 10% of Chernobyl, and the site of the accident quickly managed to localize. Numerous security measures and, most importantly, a wide information campaign launched by the Japanese authorities eventually convinced the international community that the situation is under control. However, further development of events shows that the long-term consequences of the Fukushima accident, the elimination of which will take at least forty years old, it may not be comparable.

According to information released by TEPCO, the operator of the Fukushima nuclear power station, the station continues to be a dangerous source of radiation. As a result of measurement of radiation levels in the water inside the tunnel, which is located next to the second power unit and only 50 meters from the shoreline, the content of radioactive tritium was 8.7 million becquerels per liter, which exceeds the norm by 145 times. According to the TEPCO, contaminated water has accumulated in the mine immediately after the accident and remain there to this day. In other words, despite the best efforts of the Japanese government and TEPCO, the radiation level there remained the same.

Because mine the radioactive water is located in the immediate vicinity of the coast, many are concerned that water can seep into the soil beneath the reactor, and then into the ocean. This is confirmed by a recent scandal over the conditions of storage of radioactive water that TEPCO continues to pump out of the station. International experts have said that the total thickness of the walls of the storage tanks of water is less than 1 inch, it should be ten times more.

For many people, the radiation hazard posed to the "Fukushima" is not theoretical, but the real danger is — first of all we are talking about the inhabitants of the Pacific Ocean, including the west coast of the United States. It should be noted that they have already begun to take action: the network has a petition, addressed to the senator, located on the Pacific coast, with a call to study in detail the radioactive environment of the coast and as soon as possible to develop a concrete action plan.

The authors of the petition believe that the situation is more than serious. In their view, radiation leaks have triggered mass deaths of marine animals and birds. In addition, they point to the increased incidence of cancer in the western regions of the country. The authors attribute this to a lack of proper practice of testing food products, especially those derived from the Pacific Ocean. If the petition receives the required number of votes and will be released on the legislative level, it can lead to a broad discussion of the problem at the international level. Perhaps it better: even the Japanese experts on radiation safety believe that another impact of elements "Fukushima" can not sustain.

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