National Repository of Grey Literature 68 records found  beginprevious59 - 68  jump to record: Search took 0.00 seconds. 
Multiresidual methods for the determination of pesticides in waters
Matušková, Monika ; Kubíčková, Kristýna (referee) ; Vávrová, Milada (advisor)
This bachelor´s work of theoretical character deals with multiresidual determination of pesticides in water. It is especially focused on pesticides generating residues in surface water, which - due to their toxicity and persistence in environment - require goal-directed monitoring. The division of pesticides is stated, and their properties, toxicity and elimination process are described in the work. Furthermore, possibilities of analytical determination, especially the methods of gas and liquid chromatography are introduced here. In the last chapter, the complete analytic procedure for determination of organochlorine pesticides is described.
Evaluation of methods for determination of surfactants
Soukupová, Alena ; Doležalová Weissmannová, Helena (referee) ; Vávrová, Milada (advisor)
This bachelor thesis deals with the evaluation of the methods used for the determination of surfactants. On the base of literature search the review of possible methods applicable for the determination of detergents in the surface waters and wastewaters was set up. The theoretical part presents the definitions of the surface water and wastewater, possible sources of pollution are discussed and methods of water cleaning are listed. The definition and classification of various classes of surfactants is also included. This work is theoretical; therefore the evaluation was made on the basis of the information obtained from accessible literature. The evaluation of the discussed methods is given in the conclusion.
Chemical and physical parameters of surface waters of streams in the Novohradsko area.
BERNASOVÁ, Tereza
The content of the bachelor thesis was the comparasion of chemical-physical parameters of surface waters in Novohradsko. The data, which were used in the thesis, were taken in 2014. Individual sampling points were differed in their management practices and types of ecosystem. The monitored parameters are associated with eutrophication: conductivity, pH, KNK4,5, nitrates and phosphates. Based on the results we can claim that the sampling points of agroecosystems reached higher values of the selected parameters. The biggest differences were detected in conductivity. The values of conductivity were oscitalled from 51,8 mS cm-1 to 164,4 mS cm-1.
Eutrophic stress of the Orlik reservoir
ZELENKOVÁ, Kamila
Detection of potential sources of load eutrophic surface waters. Orlik dam is out of your water and energy purposes also used for recreational purposes. In recent years, recorded deterioration of water quality. It happens that it appears "Flower" water surface and increase algae. The content of this work was to monitor the changing state of water quality in reservoirs Orlik and its surroundings during the season. Parameters were monitored: conductivity, pH, oxygen, nitrates, and phosphates and during the season of 2013.
Chemical parameters of surface waters in selected model ecosystems of the cultural landscape.
STRNADOVÁ, Johana
The aim of this study was to determine and compare the concentration of chemical parameters in five streams in Novohradské hory. Individual sampling points were different with their types of ecosystem, management practices, vegetation composition of growth and subsoil. Monitored parameters in forest ecosystems were: conductivity, pH, sulfate and calcium. In agrosystems observed parameters: electrical conductivity, pH, calcium, chloride and nitrate. The collected data generated graphs for the years 2005 - 2010. Based on the results we can say that natural mixed forest resists concentrations of sulphates and prevents the acidification of surface water. In contrast with spruce monoculture where surface water has the lowest pH because the sprice forest captures haigher quantitty of sulphates. Chemistry of water in agroecosystems corresponds to the flow through the landscape, which is used for economic activity. This was most evident in the stream, which in the upper sampling point flows through spruce monoculture and conductivity there was only 65 ?S.cm-1. On the contrary conductivity was substantially higher 175 ?S.cm -1 in the lower sampling point. Conductivity value of stream flowing through wet meadows, was 191 ?S. cm1. The measurement results confirmed that the water reaches the higher conductivity in the managed landscape.
The influence of agricultural activities on surface waters physico-chemical parameters in Novohradsko area
SLAVÍKOVÁ, Lucie
Agriculture is an activity that affects the landscape. The aim töf this work was to observe the quality of water in the Novohradsko area. These following water quality parameters were measured: pH, conductivity, nitrates, phosphates, sulphates, chlorides and alkalines cations. The parameters changes were analysed for the years 2005 - 2010. The values of conductivity on the upper profile Stropnice River exceed the value of 50 ?S.cm-1. The values of conductivity in the lower profile of the Stropnice River do not exceed 175 ?S.cm-1. The results confirmed that the farming has a significant influence on the water quality in the Stropnice River although it is an extensive farming.
Analysis of the applicability of tradable permits in water management in Czech Republic
Ropický, Jan ; Vojáček, Ondřej (advisor) ; Slavíková, Lenka (referee)
Tradable permits are currently among the most frequently used market-based instruments of environmental protection. The aim of my work is this tool to explore and then implement the water management in the Czech Republic. I'm going to try to answer the fundamental question is whether a tool that can be in our legal environment to apply to the taking of surface water for industrial use? This method of solution is used, especially abroad, especially in the U.S. and Australia. I'm going to use the literature and resources in this particular part of the world. In my work I rely on both scientific literature and articles written on this subject and obtained from the primary sources of research systems in other countries. The analysis of the Czech environment, the focus on water authorities and companies to individual basins, which are according to our laws the central government in this matter.
Chemical-physical parameters of surface water in selected subcatchments of the Stropnice river.
KLASOVÁ, Marcela
This bachelor thesis, called ?Chemical-physical paremetres of ground waters of chosen subwaters of Stropnice?, includes finding content of concentration of chemical and physical matters in water. The goal of this thesis was to compare the content of waters at ?Bedřichovský potok? and ?Pasecký potok?. Sampling and analysis of samples were made in 2010. Diagrams were made for easier presentation and to easily compare the differences. From the results we can judge, that differences are in contents of SO4, Cl, Ca and K. The biggest influence on these values has got fertilization by organic and lifestock manures.
Rainfall - runoff parameters selected basin Stropnice
FRAŇKOVÁ, Diana
Dissertation work rainfall-drainage parameters on chosen river-basin Stropnice is dealing with measurement of drainage value of surface water on five specific profiles in the area of Horní Stropnice. The goal was discovery and analysis of information on the river-basin Bedřichovský, Pasecký and Váckový stream, Humenická dam and in closure profile at Tomkův mill in the years 2007 {--} 2010, where there were monitoring heights of water level. After substitution into discharge-rating curve were scoring flow rate for individual parts of river-basins and examination of influence Humenická dam on flow rate wave in the closure profile. Between the upper specific profiles of individual streams above Humenická dam and specific profile by the Tomkův mill there was not found any influence of Humenická dam on flow wave in the river basin of Stropnice.

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