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Basically a very long time. Most radioactive isotopes are radioactive for a long time. Uranium 232 has a half life of 69 years and plutonium 238 has a half life of 88 years. Some isotopes are very long lived.

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Q: How long would the area near a nuclear power plant remain radioactive after an accident?
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Related questions

What are some of the negative impacts o f a nuclear power plant?

Radioactive waste, nuclear accident, public disapproval's


Why iodine tablet supplied to people living near nuclear power plant?

Iodine tablets are used in a nuclear accident to saturate the thyroid with non radioactive iodine. During a nuclear accident, radioactive iodine is released and the critical organ in the human body is the thyroid gland. Therefore if the thyroid is already full of non radioactive iodine the radioactive iodine can not be absorbed.


Tritium an isotope of hydrogen with one proton and two neutrons in its nucleus has a half-life of 12.3 years If 52.5 mg of tritium escapes from a nuclear power plant in the course of an accident?

6.25% will remain radioactive.


What kind of plant has radioactive waste?

A nuclear power plant


What was the worst nuclear power plant accident in world history?

The Chernobyl nuclear accident.


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There are many ways a nuclear accident may occur, however most nuclear power plant accident occur due to problem in an reactor.


The difference between nuclear waste and nuclear weapons?

The exact contents of radioactive waste from a nuclear power plant and radioactive fallout from a nuclear weapon can vary widely but are likely to be similar in their primary isotopes.The major difference between the radioactive waste from a nuclear power plant and radioactive fallout from a nuclear weapon is that the waste is normally contained and will not enter the environment (unless an accident happens) while the fallout is dispersed into the environment and is carried by the wind (sometimes all the way around the world multiple times).


Disaster that starts with N?

Nuclear power accidents are a disaster. The 1986 nuclear accident at the Chernobyl Nuclear Power Plant in Ukraine was a catastrophic accident.


Where are some places you can find radioactive smoke?

by a nuclear power plant


What does a nuclear power plant provide?

Electricity, but there is a risk of radioactive leakage.


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the reactor accident at the chernobyl nuclear power plant.


For what type of disaster is Chernobyl famous?

Chernobyl is famous for the worst nuclear power plant accident in history.