Simulação do transporte de radionuclídeos ressuspensos por incêndios florestais na Zona de Exclusão de Chernobyl
The Chernobyl nuclear accident in April 1986, in the former Soviet Union, resulted in a series of environmental issues induced by the emission of radioactive substances released after a reactor's core was exposed to the environment. The radioactive material that soon ascended in the atmosphere...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/53763 |
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| Resumo: | The Chernobyl nuclear accident in April 1986, in the former Soviet Union, resulted in a series of environmental issues induced by the emission of radioactive substances released after a reactor's core was exposed to the environment. The radioactive material that soon ascended in the atmosphere could be detected beyond Europe's continental limits, being observed in different places around the northern hemisphere. Land deposition of radionuclides such as cesium-137 can cause several disorders in organisms that live in the contaminated areas. Wildfires can cause the resuspension of the radioactive material that was deposited in the soil, besides those that are in the vegetation, and then generating a new dispersion of these elements through the air and consequently the deposition in new areas. The dispersion simulation of the radionuclides through mathematical models can show results that are near to the observed in the reality, when the model is rightly utilized, becoming then an important tool for impacts analyses. With that, in this work was simulated the dispersion and deposition of cesium-137 caused by fictitious wildfires occurred in a contaminated region of Chernobyl, where it is shown that a significant part of Europe could be affected by this radioactive nuclide. |
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