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Originally Posted by brodie  ive done some reasearch on the nuclear bombs you know fom the world wars and what happens to the radiation thats leftover by the bombs does it just wear away after a few years or do we clean it up ourslves? |
Start by doing some research at your local library or Wikipedia until you understand isotopes, half-life, nuclear radiation types (alpha, beta, and gamma), and decay chains. Shouldn’t take more than a couple hours.
The simple answer is that the vast majority goes away on its own fairly quickly. The mix of radioactive isotopes from a nuclear weapon decays far faster than those produced in the Chernobyl Accident, and the initial inventory is far smaller. Reoccupation of ground zero at Hiroshima and Nagasaki started in less than a year. Bikini Atoll took significantly longer because of the number and size of the detonations, and the fact that many were surface or subsurface detonations, but is now considered ‘safe’.
