If there was to be all out nuclear war,how long would it take for radiation to subside and become approachable?

If there was to be all out nuclear war,how long would it take for radiation to subside and become approachable?

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3 Responses to “If there was to be all out nuclear war,how long would it take for radiation to subside and become approachable?”

  1. Andrew G said:

    depends on what type of radiation & how concentrated. can last from a few years to hundreds of thousands

  2. Stuart H said:

    If it was all out nuclear war you would not have to worry about it !
    There would be no one left to approach anything.

    Theoretically, it depends on the type of nuclear explosion as too how “dirty” it is. This detremines the type of radiation and the levels and the half life.

  3. Kyle W said:

    I am not exactly sure. There is a lot more to it than just leftover radioactive substances. The resulting debris in the air that blocks the sunlight, aka “nuclear winter”, would be a very major problem.

    For your question on radiation, it depends on how well the bomb was made (ie the yield for a given size) and how it was denoted.

    If a nuclear weapon was denoted like air, then most of radioactive materials are from fission byproducts (again how good it was made), which are generally short lived (some of that stuff is pretty nasty).

    If you exploded a nuclear weapon on the ground or underground, then you get more radioactive materials created by neutron activation, and those can be around for hundreds to thousands of years. Plus, it creates more debris, which is spreads the radioactive material farther.

    From an acoustics standpoint, an air burst is more effective.

    Generally, Hiroshima and Nagasaki were starting to get rebuilt like 5 or so years after they were bombed. Today the radiation levels are pretty normal compared to what is around naturally.

    The main concern even if the radiation is generally short live, is that it can get into the food chain where it can eventually get in your body and give you an internal dose. Your clothing and skin stop more radiation than you realize.

    Read http://www.pcf.city.hiroshima.jp/kids/KPSH_E/question_box/question12.html




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