How long does radiation last after a nuke?

Radiation levels are extremely dangerous after a nuclear detonation but the levels reduce rapidly, in just hours to a few days: More than half (55%) of the potential exposure to fallout occurs in the first hour, and 80% occurs within the first day.
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How long after a nuke goes off Is it safe to go outside?

Stay inside for 24 hours unless local authorities provide other instructions.
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Can you survive the radiation from a nuke?

You'll need to shield yourself from the thermal and nuclear radiation, as you could die if exposed. However, you must find somewhere safe – you don't want to be crushed in a building destroyed by the blast wave. Get indoors, and preferably into a reinforced bunker or basement.
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How long was Hiroshima radioactive for?

Roughly 80% of all residual radiation was emitted within 24 hours. Research has indicated that 24 hours after the bombing the quantity of residual radiation a person would receive at the hypocenter would be 1/1000th of the quantity received immediately following the explosion. A week later, it would be 1/1,000,000th.
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Is there still radiation in Hiroshima?

Today, the background radiation in Hiroshima and Nagasaki is the same as the average amount of natural radiation present anywhere on Earth. It is not enough to affect human health.
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How Long Do You Need To Stay in Your BUNKER After A Nuclear Bomb? - Radiation Detectors



What is the most radioactive place on Earth?

Fukushima is the most radioactive place on Earth. A tsunami led to reactors melting at the Fukushima nuclear power plant.
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How long will Chernobyl be radioactive?

The first waste canister containing highly radioactive spent nuclear fuel from the Chernobyl nuclear power plant in Ukraine has been successfully processed and will now be safely stored for at least a 100 years.
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Is Chernobyl reactor 4 still burning?

Chernobyl reactor 4 is no longer burning. The reactor was originally covered after the disaster, but it resulted in a leak of nuclear waste and needed to be replaced. The systems for a new cover for the reactor were being tested in 2020 and is sometimes referred to as a "sarcophagus."
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Is Chernobyl still radioactive?

The Chernobyl plant, which is still radioactive, lies about 100 km (62 miles) from Kyiv. Its fourth reactor exploded in April 1986 during a botched safety test, sending clouds of radiation billowing across much of Europe.
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Why is Chernobyl still radioactive and Hiroshima is not?

Hiroshima had 46 kg of uranium while Chernobyl had 180 tons of reactor fuel. A reactor also builds up a huge amount of nuclear waste, over the weeks it is running. There is a lot of different waste products, but the worst are cesium, iodine and irradiated graphite moderators.
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Can you survive a nuke in a fridge?

A lot of people would die, of course: It's an A-bomb. But there are some easy steps that can feasibly save your life from the most fearsome weapon ever created. Oh, and spoiler alert, the answer isn't: crawl inside a fridge. RULE NUMBER ONE: Nuclear bombs aren't as deadly as you think.
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How far away from a nuclear blast can you survive?

Heat is the prime concern for those closer to a nuclear blast, with people up to 6.8 miles away suffering first-degree burns and third-degree burns hitting anyone up to 5 miles away.
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How many nukes would it take to destroy the world?

This is why another study had been conducted in 2018 testing a similar scenario that also concluded that it would take 100 nuclear bombs to end this world. What is scarier is that within this world there are 13,080 ready-to-use nuclear warheads and yet it takes such a small amount.
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Can a basement protect you from nuclear fallout?

Can you Survive A Nuclear Bomb by sheltering in a Basement. Yes and no. Surviving a direct hit from a nuclear strike is unlikely; however, the actual area of that damage is quite small, and it is highly likely that going into the basement will allow you to survive a nuclear bomb.
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How many miles are affected by a nuclear bomb?

Although some windows may be broken over 10 miles (16 km) away, the injury associated with flying glass will generally occur at overpressures above 0.5 psi. This damage may correspond to a distance of about 3 miles (4.8 km) from ground zero for a 10 KT nuclear explosion.
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What states are safe from nuclear war?

The safest place in the U.S. for nuclear war is considered to be the state of Maine. Maine is deemed to be safe due to its lack of nuclear plants and urban areas. Other potentially safe areas include Oregon, Northern California, and Western Texas.
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Is Fukushima still radioactive?

These areas still have relatively high radioactivity. The half-life of radiocesium is about 29 years, meaning the quantity of the radioactive material should drop by half by roughly 2041.
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Will Chernobyl explode again?

As water continues to recede, the fear is that "the fission reaction accelerates exponentially," Hyatt says, leading to "an uncontrolled release of nuclear energy." There's no chance of a repeat of 1986, when the explosion and fire sent a radioactive cloud over Europe.
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Will Chernobyl ever be habitable again?

How Long Will It Take For Ground Radiation To Break Down? On average, the response to when Chernobyl and, by extension, Pripyat, will be habitable again is about 20,000 years.
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Is the elephant's foot still hot?

The Elephant's Foot will cool over time, but it will remain radioactive and (if you were able to touch it) warm for centuries to come.
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Who took the elephant's foot photo?

Why or how is there a man in the photograph standing right next to the Elephant's Foot? The guy photographed with the radioactive slop is Artur Korneyev (sometimes translated as Korneev), a Kazakhstani nuclear inspector with a dark sense of humor who first came to Chernobyl shortly after the accident.
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Can you visit the elephant's foot?

Although it is extremely dangerous and due to security, it is impossible to see the Elephant's foot with your own eyes, it is possible to get inside the Chernobyl power plant.
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Are animals in Chernobyl mutated?

Most mutant animals are pretty damaged so don't live long. Animals in lakes close to the Chernobyl nuclear reactor have more genetic mutations than those from further away - giving new insight into the effect of radiation on wild species, researchers at the University of Stirling have found.
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Do humans still live in Chernobyl?

Today, just over 100 people remain. Once these remaining returnees pass away, no one else will be allowed to move into the exclusion zone due to the dangerous levels of radiation that still exist. Although the areas in the exclusion zone are still deemed inhabitable, many areas bordering the zone are safe to live in.
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How far around Chernobyl is uninhabitable?

The former nuclear plant at Chernobyl was destroyed in 1986 in an accident that rendered 1,000 square miles (2,600 square kilometers) uninhabitable. A map showing the location of Chernobyl in Ukraine and relative to surrounding nations.
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