National Repository of Grey Literature 79 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Analýza očekávaných změn množství vzdušných imisí nad územím České republiky v souvislosti s COVID-19
Kotrle, Viktor
This work analyses changes in annual and monthly concentrations for 2019 and 2020 in the Czech Republic. The focus is mainly on the search for changes related to government regulations during the Covid-19 epidemic and thus the overall change in human activity. The analysis is designed in two parts, namely a statistical analysis part and a spatial analysis part over the immission model. Measurements from the stationary stations of the CHMI were used as input data.
Impactor for fine particle collection
Paulíková, Kateřina ; Šnajdárek, Ladislav (referee) ; Pospíšil, Jiří (advisor)
This master thesis provides an overview of fine particles contained in the air and possibilities for their analysis, measurement and capture. In the beginning, the fine particle's size and origin is described. Then, the influence of fine particles on human health is stated. Next, methods of air analysis and fine particle's measurement are presented. Legislation for emissions and immissions in the Czech Republic is summarized. Finally the selected types of impactors are introduced. The practical part consists of three chapters. First chapter contains the fundamental calculation procedure and its subsequent refinement. In the following part the comparison of the calculation procedure with the parameters of the commercial impactor is provided. Lastly, the design of the impactor is created for the specified parameters using the developed calculation procedure.
Impactor for laboratory capture of fine particles
Kodad, Daniel ; Poláčik, Ján (referee) ; Pospíšil, Jiří (advisor)
The focus of this master’s thesis is the issue of fine dust particles suspended in the air and their measurement. The thesis explains the basic characteristics of fine particles and the rules, which they follow. The section then examines the health risks of inhaled particles. Next is explained the influence of particles in the air on the environment, the historical development of the air pollution in the Czech Republic and the most important pollutants. After that is described the legislation, which frames the limits for pollutants suspended in the air. In the practical part is described the methods for calculation the geometry of cascade impactor, the design of three-stage impactor and finally the comparison with professional impactor. The designed impactor was then constructed and tested with wood burning stove as a source of particles.
Acoustic emissions of buildings
Smažinka, Josef ; Uher, Pavel (referee) ; Rubinová, Olga (advisor)
The diploma thesis deals with acoustics with the main focus on acoustic emissions of buildings. The first part of the thesis aims to familiarize the reader with the field of acoustics as a whole. They will learn the basic concepts, quantities and relations that exist in acoustics. In the second part I focus specifically on the sources of noise in buildings and their surroundings, how can excessive noise affect health, what standards must be met and how to prevent excessive noise. The last part is devoted to practical measurements in the field, which is focused on real sources of noise in the city of Brno. The aim of this measurement is to compare the noise generated by buildings with other noises in the urban environment.
Zhodnocení kvality ovzduší v zájmovém území na základě vybraných ukazatelů
Sklenář, Tomáš
This bachelor thesis deals with the evaluation and development of air quality in the city of Znojmo based on selected indicators. The theoretical part first deals with the key legislative, administrative and economic instruments of air quality protection in the Czech Republic. In addition, the selected site will be described and the key sources of pollution will be identified. The most significant pollutants such as SO2, which due to relatively low concentrations stopped measuring at the site in 2012 and whose daily concentrations rarely exceeded 15 μg.m- 3, which is well below the immission limit. Another substance is carbon dioxide (CO), which also did not exceed the limit value set by the law and its concentration was almost not above 500μg.m-3. Nitrogen oxides (NOx), nitrogen dioxide (NO2) and nitric oxide (NO) were also not out of the legal limits set by the law in the reporting period. However, it was found out that dust particles PM10, as opposed to dust particles PM2.5, exceeded the immission limit given by law not only in terms of permitted concentrations but also in the maximum number of exceedances. These pollutants emitted into the atmosphere are then evaluated, including impacts they have or may have on the environment. As a procedure for the elaboration of the theoretical part, the study of professional literature, professional journals and professional articles, both foreign and domestic, will be used. The practical part is in the form of compilation of the database of data on pollutants from data obtained from monitoring stations of the Czech Hydrometeorological Institute, which are located in a locality, from the period 2009-2016. At the end of the bachelor thesis there is a statistical and graphical evaluation of the results obtained from tabular surveys published by the Czech Hydrometeorological Institute.
Acoustic emissions of buildings
Smažinka, Josef ; Uher, Pavel (referee) ; Rubinová, Olga (advisor)
The diploma thesis deals with acoustics with the main focus on acoustic emissions of buildings. The first part of the thesis aims to familiarize the reader with the field of acoustics as a whole. They will learn the basic concepts, quantities and relations that exist in acoustics. In the second part I focus specifically on the sources of noise in buildings and their surroundings, how can excessive noise affect health, what standards must be met and how to prevent excessive noise. The last part is devoted to practical measurements in the field, which is focused on real sources of noise in the city of Brno. The aim of this measurement is to compare the noise generated by buildings with other noises in the urban environment.
The importance of greenery in the city
Svobodová, Lucie ; Blasinski, Petr (referee) ; Rubinová, Olga (advisor)
The diploma thesis is focused on the problematics of urban pollution. Mainly on the impact of human activities and their consequences. Its main intention is to analyse an urban greenery system and its effect on the quality of life in both a positive and negative ways. Furthermore the diploma thesis researches the indicators of contamination, the sources of emission and their quantity at the location. The work comperes the individual indicators and the results of emission measuring. Then it proposes a suitable solution for better urban space planning with urban greenery.
Recognition quality of atmospere in towns and in areas with big resource of polluted air.
HRDÝ, Vojtěch
In this thesis, my objective was to determine the amount of air pollutants in cities of Ostrava and Ceske Budejovice and compare the differences of their content in the atmosphere of these locations. The theoretical part deals with the types of pollutants that occur in the atmosphere, their origin, characteristics and their possible toxic effects on the human body and the environment. Furthermore, there is an overview of the methods used for assessing air quality, prevention of air pollution and reducing the level of pollution, so as to reduce risks to human health caused by air pollution, to reduce the environmental burden substance reaching into the air and damaging ecosystems and create conditions for the recovery of components environmental affected by air pollution. To assess the air quality in both locations, I used the method of "secondary data analysis" of publicly available data published by the Czech Hydrometeorological Institute. From these data, I created graphs that compare the air quality in Ostrava in the Ceske Budejovice in the period 15. 8. 2016 - 15. 3. 2017 in all measured categories. For completeness, the work embedded graphs comparing the two cities on the 15th day of the month within a single pollutant. From the results it is evident that these two cities are in many ways similar. The assumption that the city of Ostrava is still a city with the worst air is no longer current.

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