On April 26, 1986, the world’s worst nuclear accident happened on the Chernobyl plant near Pripyat, Ukraine, then controlled by Soviet Russia.
It was an incident so catastrophic that even the normally tight-lipped Soviet state admitted that a public ‘disaster’ had happened.
The accident spread a cloud of radioactive material across Russia, Eastern Europe and Scandinavia, twisting generations of individuals’s genes, infecting the environment and forcing the world to rethink nuclear power.
What caused the Chernobyl accident?

All of the plant operators wanted to do this day was check if the power could stay ticking for 40 seconds, 45 tops, without power.
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Nevertheless, testers at Reactor No 4 switched off just about all safety features before carrying out the emergency shutdown test.
So what did this mean?
Nuclear power plants generate electricity by splitting atoms to create intense heat, often known as radiation. This heat boils water into steam, which spins turbines to supply power.
Crucially, through the test, staff switched off the steam – but without it, the reactor’s cooling systems malfunctioned. Operators tried to reinsert control rods to slow the response but a flaw in them caused them to jam.
The sudden power surge caused steam explosions that destroyed the core and ignited a graphite fire that burned for days.

The meltdown contaminated the realm with 100 times more radiation than that released by the bombs at Hiroshima and Nagasaki.
Inspectors wrote in a report that the accident was ’brought on by a remarkable range of human errors and violations of operating rules’.
Vince Zabielski, a former nuclear engineer, says that as much as staff were responsible, so was the Soviet-era reactor’s dodgy design, called the RBMK.
‘Unlike Western reactors, there was no containment structure to limit the discharge,’ the partner at international law firm Pillsbury tells Metro. ‘Its scale, severity, and enduring impact set it aside from all other nuclear accidents.
‘As a condition of entry into the EU, all countries using the RBMK design needed to permanently stop operations.’
How many individuals died?
Two plant staff were killed inside hours of the meltdown. One other 28 people died from radiation poisoning, including firefighters on the scene.
Anatoli Zakharov, a surviving firefighter, told The Observer: ‘I remember joking to the others, “There should be an incredible amount of radiation here. We’ll be lucky if we’re all still alive within the morning”.’
But radiation may also slowly kill. 1000’s or possibly tens of millions have died from radiation-associated illnesses, including children.


Petro Hurin, a ‘liquidator’ – someone tasked with cleansing up the reactor – told Reuters that five of the 40 people in his team are alive today.
‘Not a single Chernobyl person is in good health,’ Hurin, 76, said. ‘It’s death by a thousand cuts.’
Ionising radiation, the energy emitted by atomic reactions, can singe living tissue and tear the strands in our DNA. Even a low dose may cause cancer and other long-term physical problems.
It’s thought that around 4,000 – 6,000 of thyroid cancer cases, mostly in children, might be directly linked to the disaster, nevertheless, Dr Thom Davies, associate geography professor on the University of Nottingham, think we may never know the true toll, by way of fatalities and ongoing health implications.
‘One reason Chernobyl was so devastating was the sheer scale of the disaster – larger than every other toxic accident in human history’ he tells Metro.
‘This radioactive material spread silently and invisibly across much of Europe, including the UK, transforming areas near the reactor into what I call “toxic geographies”: landscapes still contaminated a long time later.


‘What makes radiation frightening is its invisibility. You can’t see it, hear it, or smell it – yet it has the facility to cause illness, displacement and death.’
Do people still live in Chernobyl?

It took 36 hours for Pripyat, a town of nearly 50,000, to be evacuated following the blast.
The delay got here partly because Soviet officials didn’t tell residents the true extent of the meltdown, as an alternative just shoving them onto buses.
Doctors were forbidden from diagnosing individuals with radiation sickness, shrugging their pain off as nervous conditions.
It took a Swedish monitoring station 800 miles away picking up on high levels of radiation for the Kremlin to confess something terrible had happened.
Within the years following, the federal government ousted 350,000 locals, making them ‘nuclear refugees’, says Dr Davies.
‘To place that into perspective, that is roughly similar to uprooting the complete population of Iceland or the Maldives and telling them they might never return home,’ he adds.
Chernobyl now
The disaster site, now called the Chernobyl Exclusion Zone, stretches 1,000 square miles.
Though radiation levels have declined somewhat through decay, the realm stays largely empty.
Around 150 survivors live to tell the tale the outskirts, many ladies of their 80s who call themselves samosely, or ‘self-settlers’.
Amongst them is Yevhen, who was a 49-year-old teacher on the time of the accident. He returned only a decade later to work in radiation protection.
‘Did we survive? We did! Did anyone get sick? Nobody! Did anyone die of radiation? Nobody,’ he told the Ukraїner.
‘If I hadn’t returned immediately, I’d have kicked the bucket. I would like to live in Chernobyl, nowhere else.’
Within the aftermath, officials built a ramshackle shelter across the reactor to contain radioactive dust, called the sarcophagus. It has been encased by a 40,000 steel shell, the Latest Secure Confinement, since 2016.
After the realm was declared protected for limited visitation, tourists became a standard sight for over a decade, with 120,000 visiting in 2019 alone, following the HBO miniseries Chernobyl, which aired that very same yr.
While the Russia-Ukraine war led to a decrease in numbers, travel firms still offer tours for as little as £25.
After travelling to town by automobile, individuals are shown decaying churches, rusted ships and road signs pointing to the abandoned villages.
They stress that, no, you don’t must pack your personal Geiger counter.
‘Expecting silence, ghost streets and an empty atmosphere? By no means, you’re about to see the actual living face of Chernobyl today in only one hour,’ one tour, offered by Chernobyl X, claims.
One among the corporate’s excursions sees daytrippers ride Soviet-era vehicles, wear ‘liquidators costumes’ and have a ‘Cher-noble’ time.
The wild side of Chernobyl
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With so few humans, the realm has was a post-apocalyptic nature haven.
Wolves, horses and the descendants of abandoned pet dogs roam around crumbling apartment blocks and rusted amusement park rides.
Scientists consider the zone a lab to see how chronic, low-level radiation impacts the animals.
Despite being exposed to such high levels of radiation, wolves have grown more resilient to cancer due to a genetic mutation – the precise opposite effect seen in humans – while frogs have darker skin to guard against the invisible heat.
Zabielski
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