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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Hodnocení toxicity průsakových vod ze skládky odpadů Štěpánovice
 Grocholová, Simona
The aim of this dissertation is to test the toxicity of the leachates at the landfill Štěpánovice with municipal solid waste. From literary works, the focus has been put on the legal regulations concerning the landfills waste. Furthermore, the attention has been drawn to the municipal wastes and their statistics, and also to the landfills and their engineering controls/technical security with the emphasis on the landfills monitoring. The issues of toxicology and its methods are described in the conclusion of the first section of the dissertation. The experimental section is based on the evaluation of the leachates which had been collected at the landfill Štěpánovice. The testing has been done on the basis of Toxicology testing with a semi-chronic exposure to the common duckweed (Lemna minor L). Consequently, the calculations of the growth inhibition have been carried out and analysed.
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Hodnocení toxicity průsakových vod ze skládky odpadů Kuchyňky
 Studeníková, Petra
Thesis on Evaluation of the toxicity of the water seepage from landfill Kuchyňky is engaged in legislation, waste management, statistical data in the beginning. Then there is a theoretical description of the process of landfill, division of landfills and characteristics of the basic methods of ecotoxicology. The next part is devoted to informations about landfill Zdounky Kuchyňky, its location, natural conditions and monitoring data on the landfill. Then the chapter is devoted to the description of the test of growth of duckweed (Lemna minor L.) on water seepage from landfill Kuchyňky. In the last part of the thesis there is the evaluation of the results of a toxicity test of water seepage and rainwater from landfill Kuchyňky.
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Antioxidační aktivity okřehku Lemna minor L. v abiotickém stresu
 Petrovičová, Jana
Persistent organic pollutants and pesticides have on plants generally injurious effect. The aim of this bachelor thesis was monitoring and evaluating the impact of concentrations (0.5 mg / l and 5 mg / l) flurochloridone and fluoranthene on plants of duckweed (Lemna minor L.). From the morphological view were observed changes of appearance and growth of plants of duckweed. It was found flurochloridone considerable influence on plants. From the physiological view, were observed the influence to biological membranes - measurement of malonyldialdehyde content using spectrophotometry and influence on the degree of stress in plants - abscisic acid determination by radioimmunoassay. At the 4th day of cultivation on these xenobiotic have all experimental variants increased abscisic acid content different from controls. While malonyldialdehyd as a marker of stress caused damage to lipids varied in terms of quantity of individual variants unevenly.
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