A protective shield covering the Chornobyl nuclear reactor in Ukraine has lost its primary safety function of blocking radiation, as announced by the International Atomic Energy Agency (IAEA). This loss of function comes after a drone attack earlier this year that blew a hole in the structure.
A drone strike in the second month of the year severely damaged the so-called “New Safe Confinement” structure. This massive shield, constructed for €1.5bn and completed in 2019, was intended to seal off radioactive material over the long term. An IAEA inspection last week confirmed that the drone impact had weakened the structural integrity of the steel confinement.
The containment arch's main safety functions, such as confinement, are no longer operational, said IAEA head Rafael Grossi. He added that inspectors found no lasting harm to its load-bearing structures or monitoring systems.
The original 1986 explosion at the Chernobyl plant – at a time when Ukraine was part of the USSR – released radioactive fallout over much of Europe. In a hurried response, Soviet engineers built a concrete “sarcophagus” over the damaged reactor, though it possessed only a three-decade design life. The new confinement was erected to enable the future dismantling of the old sarcophagus, the damaged reactor building, and the melted nuclear fuel itself.
While some repairs have been carried out, agency officials emphasized that a full-scale repair effort is essential. This is needed to prevent further degradation and to ensure long-term nuclear safety. Ukrainian authorities had stated that a drone carrying a powerful explosive hit the plant, causing a fire and compromising the protective cladding.
The situation underscore the persistent risks at one of the the planet's most infamous atomic accident locations during continued hostilities.
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