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Geochemická charakteristika půdního prostředí se zaměřením na kontaminaci podél vybraných silničních komunikací
Ambrožová, Pavlína
Roadside soils are affected by traffic. Topsoil samples were collected at 35 Moravian localities with varying traffic intensity. They were analyzed by XRF spectrometry to obtain total element composition. The evaluation of results was carried out with an emphasis on risk elements (Cr, Ni, Cu, Zn, As, Mo, Cd, Pb). Positive correlation between traffic intensity and Cu and Pb content in the soil was discovered. The evaluation of the level of contamination was carried out on the basis of the limits announced by the Czech Ministry of Environment. The whole diploma thesis is supplemented by a review in order to provide a comprehensive view on this extensive issue.
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Assessment the impact of the application of excavated sediments from the dam Luhačovice on the content of risk elements in arable soil
Kratěnová, Pavla ; Komendová, Renata (referee) ; Řezáčová, Veronika (advisor)
This diploma thesis focuses on an issue concerning an excavated sediment application on an arable soil and its impact on the soil quality based on a particular case of a deposition of the sediment from the dam Luhačovice on an adjacent agricultural area. The theoretical part of this thesis is focused on a soil and sediment characteristics and functions, contained risk elements, sampling methods, determination possibilities of particular risk elements and a description of conditions which emerged from a need for the deposition of sediment obtained during scavenging of the dam Luhačovice. In the experimental part was described the process of sampling, samples processing and determining of concentration values for chosen risk elements (Cd, Cu, Hg, Ni, Pb) using flame or electrothermal atomic absorption spectrometry methods. This part also contains an evaluation of obtained results and a validation of an approval for the sediment deposition.
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Contamination of soil and sediment by hazardous metals
Pidima, Tomáš ; Komendová, Renata (referee) ; Doležalová Weissmannová, Helena (advisor)
This bachelor thesis deals with soil and sediments from the environmental perspective. For selected heavy metals – cadmium, lead and mercury are given information about their occurrence, characteristics and potential sources of environmental contamination. It is also mentioned legislation dealing with the topic. The limit concentrations in soil and sediments, determination methodology and principles of the most commonly used instrumental analytical methods for these elements are described.
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The use of bioaccumulation capabilities aquatic plants and moss for monitoring some risk elements in the Malše river.
BEDĚRKOVÁ, Ivana
The aim of the graduation theses was the using bioaccumulation efficiency of plants, especially water mosses, for the monitoring of the occurence of risk elements in surface waters. The graduation theses assess the content of risk elements in this bioindicators in relation to quality of water supply river Malše. Water mosses susceptibly reflect the statement of water environment and they confirm very good quality of water in river Malše and its usability as water supply river in term of content of monitored risk elements (chrome, arsenic, zinc, lead, cadmium, mercury and uranium).
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