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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Nuclear tests and their implications for public health and environmental quality
 FABIÁN, Lubomír
The aim of this thesis is to give an overview of past nuclear testing and draw some conclusions regarding its potential implications on public health. The introduction presents all kinds of nuclear tests, the history of nuclear testing with respect to particular countries, provides the description of the kinds of ionizing radiation and protection against it as well as the biological effects of ionizing radiation on tissue. There is a part devoted to international treaties in this field ? The Partial Nuclear Test Ban Treaty, The Threshold Test Ban Treaty and The Comprehensive Nuclear Test Ban Treaty. The summary of the number, the yield and the geographical distribution of the past atmospheric nuclear tests follows. There is an explanation of the global fallout mechanism of the radionuclides released, the estimates of emitted doses and the relationship between these doses and their probability of inducing cancer in the human body. The objective of this work is to make an assessment of the contribution of doses originating from nuclear testing to total population doses (irradiation) and subsequently quantify health implications for the population. The method of achieving this is based on calculating theoretical estimation of cancer incidence from known effective doses commitments and in comparison with those real incidences raised by all the different sources and reasons in world areas chosen, derived from the statistical data gathered from scientific studies and publications of international organizations involved. The outcome of this work is the confirmation of the first hypothesis that nuclear testing has statistic impact on enhancing the frequency of cancer disorders on the world population; however this is relatively small with respect to the other sources of radiation and a rate of naturally spontaneous (non-radiation-induced) cancer occurrence. Also the second hypothesis that underground nuclear tests have significantly smaller influence on public health and environment quality than the other kinds of nuclear tests is acknowledged.
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