Radioactive contamination of the environment in Siberia (Russia) begun in 1949 when was accomplished the first explosion of a nuclear device at the Semipalatinsk Test Site (Kazakhstan). It is known that the explosions of nuclear devices in the atmosphere were accomplished regularly until 1963. Radioactive fallout from the explosions had contaminated several densely populated areas of Siberia, mainly the Altai region. Since then, more than 3,000,000 inhabitants of Siberia and the Urals has been exposed to radiation due to testing of nuclear devices at the Semipalatinsk and Novaya Zemlya...