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Besides the problem of a possible catastrophe in the nuclear power stations, of production of electrical energy or ships and submarines with nuclear propulsion, the most serious problem which arises for the age of the atom is the storage of the radioactive residues. What to make this waste? Being given that the seas cover two thirds with the sphere, the specialists thus "naturally " thought of them to get rid of these substances mortals. For a long time already, the nuclear powers are satisfied to reject their radioactive waste in the seas using metal drums which rust quickly. The corrosive capacity of water is considerable, none was does not resist to him more few months a few years. Since 1972 in London, several great nations decided to stop the rejection with the sea of waste with high activity, but on the other hand to continue the storage of waste with average and weak activity. However, today everyone knows well that nuclear pollution is most dangerous and most insidious of all. The amounts of radioactivity to which an organization is subjected add and the cumulated effects are made feel in all the descent of the algae and at the time of their death they break up on the funds and form a contaminated sedimentary deposit. The radio operator nuclides are substituted in living tissue, with elements which are normally present there and concentrate there. Iodine 131, for example, replaces non radioactive iodine and is in very significant proportion in the algae. The algae concentrate plutonium also preferentially.
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