The UN’s nuclear watchdog has opened an investigation into claims that Russian soldiers occupying the abandoned Chernobyl power plant left the site after receiving high doses of radiation.
Ukraine’s state power company Energoatom said the invading troops dug trenches in the forest inside the exclusion zone and that they “panicked at the first sign of illness”, which “showed up very quickly”. They left shortly afterwards, the company added.
Russian troops have “largely withdrawn” from the decommissioned nuclear power station but have taken an “unspecified number of Ukrainian service personnel with them”, according to The Guardian.
There were concerns last month about conditions inside the plant after its capture by Russian forces. More than 100 workers and 200 guards were stuck at the site in northern Ukraine when it was overrun during the early weeks of the invasion. According to the BBC, workers continued their duties in an atmosphere that was largely “calm”. But conditions were said to be “difficult”, with little access to food and medicine.
Now that Russian troops have reportedly left the Chernobyl site, the head of the International Atomic Energy Agency (IAEA), Rafael Grossi, said he intends to lead a visit to the plant “as soon as possible”, said The Guardian.
What happened at Chernobyl?
In the early hours of the 26 April 1986, workers at the Chernobyl plant, originally known as the V.I. Lenin Nuclear Power Station, attempted an experiment at one of the site’s four reactors.
The test was designed to see if it was possible to bridge the gap between the power grid going down – a common occurrence in the final years of the Soviet Union – and the plant’s back-up generators taking over.
However, the test was hurried and poorly planned, and a subsequent reactor meltdown saw two explosions blow the roof off the reactor and blast many tons of radioactive material into the atmosphere over Ukraine, Belarus and beyond.
How many people were affected?
Owing to the secretive nature of the Soviet government, the details of the catastrophe, including the death toll, were mostly hidden from both citizens of the USSR and the outside world.
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) has identified 49 immediate deaths from trauma, acute radiation poisoning and a helicopter crash during the salvage operation.
The long-term implications, however, are more bleak. In 2005, UNSCEAR noted a spike in instances of thyroid cancer in nearby regions, and predicted that “a total of 4,000 deaths will eventually be attributable to the Chernobyl accident”.
More than 100,000 people were evacuated from the area immediately after the accident, and the total number of evacuees from severely contaminated areas eventually reached 340,000. These people have never been allowed to return home, and the off-limits areas are known collectively as the “Exclusion Zone”. Access to this zone can only be granted by the government of Ukraine, and only for 12 hours at a time in almost all cases.
Did it destroy the Soviet Union?
It has been argued that the remarkably expensive clean-up operation and elaborate government cover-up may have been the catalyst for the collapse of the Soviet Union in 1991.
“Soviet authorities had long failed to acknowledge domestic catastrophes,” said NBC News. “But this time, as winds carried the radioactive fallout across much of Europe, their delay angered the international community and exposed their pathological secretiveness.”
Disillusionment with the government’s handling of the disaster within the Soviet Union also reached unprecedented levels, with tens of thousands of protesters taking to the streets of Kiev and elsewhere, the BBC reported.
According to Mikhail Gorbachev, the then-leader of the USSR, the Chernobyl disaster was a “turning point” that “opened the possibility of much greater freedom of expression, to the point that the system as we knew it could no longer continue”.
“Chernobyl revealed itself as the symptom of a corrupt and failing system rather than a technological catastrophe,” added the BBC.
What is the current risk?
According to the BBC, there are unconfirmed reports that some of the Russian troops suffering from radiation exposure “are being treated in Belarus”. Reuters also quoted workers at the plant as saying some of the soldiers had “no idea” they were in a radiation zone.
Russia has repeatedly stated that radiation levels at the plant remained the same during their occupation of the site. The IAEA has said it was unable to confirm the reports.
BBC science correspondent Victoria Gill pointed out that decades on from the disaster, there is “no working nuclear reactor on the site” and that experts have “stressed throughout this saga that there was no risk of ‘another Chernobyl’”.
However, the IAEA said in early March that there is no reason for immediate concern after Russian troops turned the power off at the site, which is just 60 miles from Kyiv. The UN agency said it saw “no critical impact on safety” over the loss of power.
The watchdog explained in a statement that there is enough water in Chernobyl’s spent fuel pools to keep the fuel rods cool and avoid an accident.
It also reiterated a statement from 3 March that said that the amount of time since the Chernobyl disaster meant the spent fuel had cooled down enough that “the pool is sufficient to maintain effective heat removal without the need for electrical supply”.
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