Chernobili again radiates? – The world
Almost two months ago, the Russian dron broke the precious sheath of the Chernobyl nuclear nuclear nuclear that had Havarius in 1986. years. The danger is not immediate, but due to the radiation, the wrapper will be repaired. And that is neither easy nor cheap.
The Ukrainian authorities are looking for ways to close the large hole in a protective cover above the damaged block 4 excluded Chernobyl nuclear power plants, caused by Russian attack.
In the night of 14. February, the Russian drone pierced the protective barrier. After that, the fire broke out that caused significant damage to the roof construction. The fire was extinguished until 7. Marta, three weeks after the impact.
« The primary task is to close the holes of about 15 square meters, but also more than 200 small holes that the state agency in emergencies », says Grigorij Zhchenko, director of Ukrainian state agencies responsible for managing the forbidden zone around the Chernobilic power plant.
According to Disgusted words, experts from research institutes arrive on the scene to examine protective shells. « Preliminary repair recommendations should be available within one month, » DW expert said.
How to find all the damage?
The shell was built over the old so-called. Sarcophagus, temporary protective shells. It is intended to prevent the spread of radioactive radiation from the block 4 power plants that exploded in 1986.
For the construction of this newer shell, 45 donors teamed forces with Ukraine and collected more than a billion and per euro; 10,000 people from 40 countries were included in the project.
Since the signing of the contract to commission in the work of the new Protective Cover 2019. It has been almost twelve years.
Picker says there is no preliminary damage estimation of the Russian attack yet. The competent research institutes will perform an appropriate calculation after the investigation.
« Radiation levels are normal. The staff continues to work as before. Only the pressure control system is no longer functioning, and something elevated is measured and the pressure below the shell is no longer hermetic, » Explains God.
Can radioactivity leak?
According to experts, the pressure drop below the cover is not an immediate threat, but there are other dangers.
« Currently, it is impossible to safely dismantle the old sarcophagus, which was in 1986. year, above the destroyed power plant block, » says Dmitro Humenjuk from the State Scientific and Technical Center for Nuclear and Radiation Security of Ukraine.
The new protective cover was built for this purpose – because the old sarcophagus was worn out. There are still 18 unstable beams. There is a fear that one of the three main cross-beams could be crashed at any time.
« If parts of the structure collapsed below the now damaged protective cover, there would be raised radioactive dust, » Humenjuk says. « The currently protective sheath does not meet its function, namely the retention of fission products within the reactor, » the expert says.
But experts emphasize that this does not mean that citizens must now pile the iodine tablets or look for ways to evacuate. But complain that all the efforts of the international community are, which collected money to build a protective shelter, now practically fired in vain.
How can the hole close?
« It will be impossible to weld and fix the damaged shell, the protective shell was placed a little further and slided the rails now dismantled, we need to do something else, » Dmitro Humenjuk explains.
Jan Vande Puts from the Ukrainian Branch of Grinspho sees only one way to continue work on a protective sheath: « Due to the high level of radiation above the sarcophagus, the entire Chernobilic protective sheath will probably be able to move rails back so that expensive repairs. »
According to him, it is still completely unclear how much works will cost.
As published on the nuclear power plant, Chernobilj visited representatives of the European Bank for Reconstruction and Development, which reviewed technical facilities and space below the protective coating, and discussed with representatives of the Nuclear Power Plant representatives.
Initially, 400,000 euros will be made available for professional assessment of the expert assessment of international Chernobille cooperation (ICCA), which is managed by the European Bank.
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