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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
The distribution of radioactive stroncium in organism
 PAULŮ, Zuzana
The topic of my bachelor thesis is the distribution of radioactive strontium in organism. The thesis is divided into three main parts. In the first part I describe general problems of radioactive strontium, talk about possible ways of entrance of this radionuclide into organism and discuss resulting health hazards. In the second part I mentioned three case studies dealing with contamination by radioactive strontium. The first case study describes the long term contamination by 90Sr in the Techa river population. The second one is the study of a group of volunteers who received 85Sr and subsequently the excretion, elimination and retention of this radionuclide in the organism of the volunteers were observed. The last case study describes the influence of the external radiation on distribution of the radioactive strontium in the organism of rats. The third part of my graduation thesis contains the discussion on the problem of distribution of radioactive strontium in the organism of mammals. The aim of my bachelors thesis was to make analysis of the distribution of radioactive strontium in organism according to different ways of its entrance into the organism. My hypothesis was that the degree of damage to the organism does not depend on the way of entrance of this radioactive strontium into the organism. The hypothesis was rejected after I analysed and compared all avaliable data.
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The most considerable of radionuclides at the accident of the nuclear power station, the experience of Chernobyl
 HORÁKOVÁ, Magdaléna
At the nuclear power plant accident, the radionuclides with very short half-life come to enviroment, they decay the period from several second to several months. On the other sides come to enviroment radionuclides with long half-life. Their radionuclides occur in surrounding of the power plant for hundreds of years before they decay totally. Immediately after a nuclear power plant accident, radioiodine represents the most severe health hazard for population. Because it is a radionuclide with short half-life, it causes the danger during first months after the accident. Its health hazard lies in the fact, that it gets to food chains and irradiates a man, who consumed contaminated water and food. Radiocaesium and radiostrontiom are the next important radionuclides. They have long half-lifes, it means that will decay after hundred years after the accident and they endanger population a long time after the accident yet.
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