|Title:||Demand for final sinks of selected substances in countries of different economic development Carbon, Nitrogen and Mercury in three cities of the world; analyse for Carbon, Nitrogen and Mercury in three cities of the world||Language:||English||Authors:||Boursier, Sylvain||Qualification level:||Diploma||Advisor:||Fellner, Johann||Issue Date:||2013||Number of Pages:||115||Qualification level:||Diploma||Abstract:||
The anthropogenic influence on the Earth's ecosystems has never been as important as today. Natural cycles of elements are disturbed especially in big cities of the world. Depending on the level of consumption and the environmental protections that are in place, cities emit more or less substances that are then diluted in the available natural sinks. The goal of the thesis was to assess and compare the emissions of carbon, nitrogen and mercury in the atmosphere, hydrosphere, lithosphere and in landfill for three cities of the world with different level of development. As this is a complex task, the purpose is to find in each case a rough estimation of quantities emitted per year, then to calculate necessary dilution factors that allow comparison between the three cities. The total emissions level for Vienna, Santo Domingo and Bamako could be determined but sometimes with high approximations. The main results from the comparison of the necessary dilution factors are that the emissions of a developed city, here Vienna, are in general more easily diluted by the available sinks and therefore put less pressure on the local ecosystem. Bamako, as a weakly developed city, exerts more pressure and Santo Domingo as an intermediate developing city exerts even more than the others. This is mainly due to an interdependence between pollution control and the amount of used resources. In the end, this simplified research verified the assumption that a developed city with high environmental standards has a lower impact on the local environment.
|Library ID:||AC10901870||Organisation:||E017 - Weiterbildungszentrum der TU Wien||Publication Type:||Thesis
|Appears in Collections:||Thesis|
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