We have studied biomaterial of the man and the woman, the total of 48 organs and tissues. For the first time the distribution and level of accumulation of radioactive elements in organisms of Tomsk inhabitants are examined. It was stated that the content of radioactive elements is influenced not only by geochemical conditions of the place of people's residence, but also by the internal media of an organism, that is biochemical processes: hydrogen indicator, form connected with valency of an element. It is possible to consider the given organs as a protective reaction of the whole organism.