National Repository of Grey Literature 24 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Assessment of contamination in selected locations of Valašské Meziříčí
Dunajská, Sabina ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
This thesis deals with soil contamination caused by heavy metals in the region of Valašské Meziříčí. The metals analysed were cadmium, chromium, copper, iron, mercury, manganese, nickel, lead, zinc. Metals were determined in 34 samples. The analyses were performed using AMA-254 and AAS methods. Contamination indices were used to assess the contaminated sites and health risks were also assessed.
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.
Use of pollution indices for evaluation of soil contamination
Čmelíková, Dorota ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
This thesis focuses on heavy metal contamination of soil and the use of pollution indices for its evaluation. Two regions were selected for assessment and comparison. The chosen heavy metals were mercury, zinc, copper, lead and cadmium. These heavy metals were analysed in 15 samples from Kyjov nad 15 samples from Ostrava. Methods of analysis were AMA-254 and FAAS. The established concentrations were used to calculate pollution indices and for health risk assessment. Pollution in Kyjov was assessed as low to medium without any health risks. Ostrava region was assessed as moderately to highly polluted with a low health risk, especially for children.
The problems of interaction testing compounds in ecotoxicology.
Pavlíčková, Ivana ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
Bachelor thesis summarizes current knowledges of the problems of interaction of tested compounds and the determination of ecotoxicity. The work deals with the evaluation of ecotoxicity of binary mixtures of substances, toxic metals, or biologically active substances. The work is a brief summary of ecotoxicity tests used.
FTIR analysis of soils containing plastics and microplastics
Sinčáková, Lenka ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
This bachelor thesis deals with the sources of microplastics in soils, their potential toxicity for men as well as the environment and soil-plastic interaction. It provides an overview of methods that are commonly used for qualitative and quantitative characterisation of microplastics in soils with focus on FTIR spectrometry. In the experimental part, real soil samples were evaluated with the use of ATR-FTIR based on model soils-microplastics mixtures calibrations. Vaidation models for model mixtures and carbon content were also evaluated.
Interactions between microplastics and heavy metals in the aquatic environment
Ottová, Michaela ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
This diploma thesis deals with the adsorption of heavy metal ions on the microplastic. Specifically, lead, chromium, zinc, copper, mercury and polyethylene terephthalate was chosen as the plastic representative. Atomic absorption spectrometry (F-AAS, AMA) and FTIR with method ATR were used for the analysis. The aim of this work was to perform selected adsorption experiments, to determine the adsorption kinetics and the maximum amount adsorbed. Subsequently, the most suitable kinetic and isothermal model was determined for each element and the characteristic parameters were calculated.
Assessment of soils using pollution indices
Satola, Ondřej ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
Subject of this diploma thesis is analysis of selected heavy metals in soils which are exposed to long-time cause of contaminants from metallurgical industry in localities Třinec and Ostrava. For assessment of the contamination, indexes for evaluation of soils were chosen. Those indexes are focusing mainly on rate of enrichment of the soils by selected heavy metals and resulting ecological and possibly health risk for human organism. Within every location, 26 samples were extracted, while every sample extract location, were selected to map the level of pollution around metallurgical plants in the most complex way. The analysis of the samples was done by techniques F-AAS and AMA 254 and established metals were mercury, lead, copper, chrome, nickel, manganese and zinc.
Presence of heavy metals near the way Rudná
Chovanec, Petr ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
These diploma thesis is focused on assessment of hazardous metals in soils near the road Rudná in Ostrava. Seventeen sampling sites have been chosen along this road, samples from this sites were collected in three series. The amounts of mercury, lead, copper, cadmium, zinc, vanadium and manganese were determined. There was also assessed contamination of selected sites using contamination factor and degree of contamination.
The heavy metal contamination of selected sites in Ostrava
Mihočová, Silvie ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
This thesis is focused on the assessment of contamination of non-agricultural soils of selected locations in Ostrava of hazardous metals. Selection of locations was based on the stationary pollution source REZZO1. Total 36 collected samples from 12 locations in three times periods between July 2010 and March 2011 that each collection represented a different time period for characteristic emissions conditions. The risk of metals mercury, cadmium, lead, copper and chromium were determined by atomic absorption spectrometry (F AAS, ET AAS, AMA 254).The influence of the distance of locations from stationary sources of REZZO1 on the extent of soil contamination by selected metals was confirmed.
Application of FTIR methods and the use of chemometry in the field of soil contamination by plastics and microplastics
Dvořáková, Alena ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
This final thesis deals with application FTIR method and the use of chemometry in the field of the identification of microplastics in soil. A total of 3 FTIR techniques were used, DRIFT and ATR operating in the mid-infrared region and TANGO technique operating in the near-infrared region. Mixtures of model soil and PET of different concentrations were prepared for analysis. In addition, mixtures of real soil samples and PET of different concentrations were prepared. The obtained data were used for interpretation of the infrared spektra, construction of calibration and correlation dependencies of PET and evaluation of validation models using DRIFT, ATR and TANGO methods.

National Repository of Grey Literature : 24 records found   1 - 10nextend  jump to record:
See also: similar author names
3 Pavlovský, Jakub
2 Pavlovský, Jan
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