Chernobyl Catastrophe Containment Structure Can No Longer Effectively Blocks Harmful Radiation, Needs Major Restoration – IAEA
The protective shield encasing the Chornobyl reactor core within Ukraine has lost its primary function of blocking radiation, according to the IAEA. This loss of function follows a drone strike in February that caused significant damage in the protective shell.
Damage from Aerial Attack Degrades Containment Structure
An attack by an unmanned aerial vehicle in February caused a breach in the so-called “New Safe Confinement” structure. This enormous protective structure, built at a cost of €1.5bn with work finishing in 2019, was designed to seal off radioactive material for decades. A recent IAEA inspection last week confirmed that the strike had degraded the structural integrity of the steel confinement.
The containment arch's main safety functions, such as confinement, are no longer operational, stated IAEA director general Rafael Grossi. Grossi noted that inspectors found no lasting harm to key support structures or sensor systems.
Background Context of the Chornobyl Shelter
The initial 1986 disaster at Chornobyl – at a time when Ukraine was part of the USSR – spewed radioactive fallout across Europe. During a frantic response, Soviet authorities constructed a concrete shelter over the damaged reactor, though it possessed only a 30-year lifespan. The New Safe Confinement was erected to allow for the future decommissioning of the old sarcophagus, the destroyed reactor hall, and the molten fuel within.
Current Situation and Required Actions
While some repairs have been carried out, the IAEA stressed that comprehensive restoration is essential. This is needed to prevent further degradation and to ensure safety for the coming decades. Ukrainian authorities had stated that a unmanned aircraft armed with a powerful explosive hit the facility, igniting a blaze and compromising the outer shielding.
- Radiation Readings: Reports indicated background radiation remained normal and stable after the incident with no reports of any leakage.
- Geopolitical Context: Russian forces occupied the Chornobyl site for more than 30 days in the early stages of the full-scale war.
- Wider Assessment: The agency carried out this review alongside a country-wide assessment of war damage to the country's electricity infrastructure.
The situation highlight the persistent risks at one of the the planet's most notorious atomic accident locations during ongoing hostilities.
