🔗 Share this article

The protective shield encasing the Chornobyl nuclear reactor in Ukraine can no longer perform its main function of blocking radiation, as announced by the International Atomic Energy Agency (IAEA). This failure comes after a drone attack earlier this year that blew a hole in the protective shell.

Damage from Drone Strike Degrades Containment Structure

A drone strike in the second month of the year caused a breach in the so-called “new safe confinement” structure. This massive shield, built at a cost of €1.5bn and completed in 2019, was designed to seal off radioactive material for decades. An IAEA inspection last week found that the drone impact had degraded the integrity of the steel arch.

The containment arch's main safety functions, such as confinement, are no longer operational, said IAEA director general Rafael Grossi. He added that the mission confirmed no lasting harm to key support structures or monitoring systems.

Background Context of the Chernobyl Containment

The initial 1986 explosion at Chornobyl – which occurred when Ukraine was a republic within the Soviet Union – spewed radioactive fallout over much of Europe. In a hurried response, Soviet engineers constructed a concrete shelter over the damaged reactor, but it had a three-decade design life. The New Safe Confinement was constructed to allow for the future dismantling of the old sarcophagus, the damaged reactor building, and the melted nuclear fuel within.

Current Situation and Necessary Actions

While some repair work has been done, the IAEA emphasized that a full-scale repair effort is absolutely necessary. This is needed to stop additional deterioration and to ensure safety for the coming decades. Officials in Ukraine had stated that a unmanned aircraft armed with a high-explosive warhead hit the plant, causing a fire and damaging the outer shielding.

• Radiation Levels: Authorities confirmed background radiation stayed within safe limits following the attack with no reports of any leakage.
• Geopolitical Context: Moscow's troops seized the Chernobyl exclusion zone for over a month in the early stages of the 2022 invasion.
• Broader Inspection: The IAEA conducted this review alongside a nationwide survey of war damage to the country's power substations.

These developments underscore the persistent risks at one of the the planet's most infamous atomic accident locations during continued armed conflict.