On December 8, 2016, the United Nations General Assembly adopted a resolution proclaiming April 26 as International Day of Remembrance for the Chernobyl Disaster.
As you know, April 26, 1986, 1 p.m. 23 min., A powerful chemical explosion occurred in the fourth unit of the Chernobyl nuclear power plant, destroying part of the reactor block and the engine room.
The explosion caused a fire, which spread to the roof of the third power unit. Almost immediately, the firefighters arrived on the scene. The fire was extinguished until 5 a.m. However, in the middle of the fourth block itself, it was not possible to remove it until May 10, when most of the graphite burned.
After the explosion and fire, a radioactive cloud formed, which covered not only the territory of modern Ukraine, Belarus and Russia, but also the territories of many European countries – Sweden, Austria, Norway , Germany, Finland, Greece, Romania, Slovenia, Lithuania, Latvia. According to the international scale of nuclear events (INES), this accident was classified according to the seventh highest level of danger.
At first, Moscow and the management of the Ukrainian SSR hid the fact of the accident and the consequences of an environmental disaster. Sweden was the first to report an increase in radiation levels. It was not until April 28 that the first official announcement appeared in the USSR.
In the first days after the accident, the population of the 10 km area was evacuated, in the future the evacuation area was extended to 30 km. A total of 2,293 colonies became radioactive in Ukraine, where more than 2.6 million people lived in the late 1980s of the last century. As a result of this disaster, more than 5 million hectares of land have been removed from farming.
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To prevent the spread of radiation at the end of 1986, the destroyed reactor was covered with a special “sarcophagus”. According to experts, there was approximately 95% of the fuel that was in the reactor at the time of the accident, as well as a significant amount of radioactive substances, which consist of the remains of the destroyed reactor. For security reasons, on December 15, 2000, the Chernobyl nuclear power plant was suspended. At the same time, the Shelter object, erected in 1986, was gradually destroyed.
Ukraine has appealed to the international community for a competition for refuge transformation projects. In 2004, a call for tenders was launched for the design and construction of a new “sarcophagus” – the new safe containment. This project is fully funded by the European Bank for Reconstruction and Development: construction funds, about 1.5 billion euros, have been provided by 40 donor countries. As a result, on August 10, 2007, the NSC construction contract was signed and work began on October 29, 2007. The best Ukrainian and foreign specialists participated in the construction.
On November 29, 2016, the NSC bow was drawn on the refuge. Now the new secure containment of the destroyed unit at the Chernobyl nuclear power plant has been put into service. In the future, there will be work on dismantling the unstable structures of the Shelter object. According to the designers, the new building will be able to solve the problem for at least a hundred years, although they plan to liquidate the station in 2065.
According to the materials: ukrinform.ru