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Assessment of water quality from wells Highlands region
Remerová, Martina ; Vávrová, Milada (referee) ; Doležalová Weissmannová, Helena (advisor)
The bachelor’s thesis is focused on assessment of water quality from wells, which are situated in the Highlands region. The thesis deals with various types of water, whereas it deals in detail with underground water. Further there are described pollutants in water with the emphasis on elements, ions and salts in samples, which were examined in practical part. Then there is given general information about wells, a reader is acquainted with the Highlands region, there is described Velké Meziříčí closely and its surroundings. Last chapters are devoted to a geological section of the locations of wells and their characteristics. The thesis contains chapters attended to taking samples and an enumeration of used devices and chemicals. There are described methods of assessment of individual inorganic pollutants in an individual chapter. There are drawn up calibrations for elements and compounds. At the end of the thesis is concentrated on results. The results of each measurement are well-arranged and compared with standards for drinking water. In most of the cases is proved that wells from given locations are not contaminated by inorganic pollutants monitored in this thesis.
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Evaluation of ecotoxicity of selected chemicals with using algal test.
Kosárová, Hedvika ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
This bachelor thesis deals with the ecotoxicity of 2 - [(2,6-dichlorophenyl)aniline] benzene acetic acid (diclofenac), ?-methyl-4-(2-methylpropyl) benzene acetic acid (ibuprofen) and mixture of cadmium and diclofenac and studies the above using algal toxicity test in accordance with ISO 8692. The theoretical part describes the issue of pharmaceuticals in the environment, and characteristics of standards algae tests and alternative tests. Freshwater green algae Desmodesmus subspicatus were used as testing organisms in all the implemented algal toxicity tests. By the means of these tests, the IrC50 values for the standard substance potassium dichromate, the drugs diclofenac and ibuprofen and cadmium were determined. The toxicity of cadmium in mixture with diclofenac was also evaluated.
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Assessment of contamination around the landfill Pozďátky
Sedláček, Jaroslav ; Zlámalová Gargošová, Helena (referee) ; Doležalová Weissmannová, Helena (advisor)
This bachelor thesis is focused on the characterization of the locality and on the evaluation of water contamination in a short distance from Pozďátky - the hazardous landfill. The occurrence of the selected contaminants is assessed. The samples were collected at five different locations: landfill leaks, the confluence of these leaks with the Prašinec creek, in other parts of the Prašinec creek affected by contaminated waters and on the very site of the creek Prašinec where no water pollution has been expected.
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Importance of contact tests of ecotoxicity
Modlitbová, Pavlína ; Doležalová Weissmannová, Helena (referee) ; Zlámalová Gargošová, Helena (advisor)
This bachelor thesis is dealing with an issue of contact tests of ecotoxicity and their importance for solid matrices testing as wastes, contaminated soil etc. According to the requierements of current legislative, ecotoxicity of these materials is evaluated only for results obtained with testing their water leach. Need of insertion ecotoxicity contact tests into mandatory set of tests is discussed in thesis, because current set of tests is relevant only for water ecosystem and does not support sufficient prediction for eventual ecotoxicologic impacts for terrestrial ecosystem.
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