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Radon solutions in selected high schools in South Bohemia
PICHLOVÁ, Irena
The principal aim of this diploma thesis was to monitor radon volume activity from the ground at the buildings of selected high schools in the South Bohemian Region. The theoretical part of the diploma thesis was processed by secondary data analysis. With the help of professional literature, valid legislation and Internet texts, radon problems were analyzed. I dealt with the penetration of radon from the subsoil, water and construction material into the buildings. Furthermore, its biological effects on human health, radon program, subsidies and legislation regulating radon problems. The research was proceed through a qualitative search using secondary data analysis. The needful data for the research part of the diploma thesis I got from my own measurement of radon volume activity in five high schools in the South Bohemian Region, supplemented by the measurement of carbon dioxide. I measured the radon volume activity with the continual monitor Radim 5B and the carbon dioxide concentration with the Wöhler KM 410 for climate assessment. Measured result values were processed using special programs on the computer and the results were displayed in graphs. The measurements made it clear that in selected schools up to one have not a greater problem with radon. From the measured values of carbon dioxide concentrations is evident that in schools is not enough ventilation, and the insulation of the building and the replacement of the windows on behalf of Eurowindows plastic or wooden has an fundamental effect. Consequently, the concentration of radon is then higher than it could be. In view of these facts, it would be advisable to carry out a ventilation system in schools or create vents in the masonry to ensure that clean air is drawn into the building.
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Awareness of workers about ill effects of chemicals and measures to protect the health during handling with dangerous chemicals
PICHLOVÁ, Irena
This thesis concerns knowledge of staffers about harmful impacts of chemicals and their mixtures, actions leading to protection of occupational health and safety during manipulations with chemicals and their mixtures. The thesis is divided into two parts, theoretical and practical. Theoretical part is divided into several chapters and is worked out by secondary analysis of data. There is included general description of working system, relationship of work and health, risk analysis and work categorization. The main chapter are chemicals, where are included impacts of chemicals for human organism, general toxicology and legislation with respect to chemicals and their mixtures, particularly regulations of European parliament and Authority /ES/ Nr. 1272/2008. Enclosed are also hygienic limits, samplings and methods of setting for chemicals and biological exposition tests, categorization of work according to chemicals. Conclusion of theoretical thesis contains measures for protection of health and preventive working-medical check-up. In the practical part of thesis was used quantitative research. For collection of information was used questionnaire. Total number of questionnaires were 170, 130 were delivered back completed correctly, it means that return ability is 76%. This document was anonymous and contained 17 questions, it was printed given to employees of two big companies located in Tabor and surroundings, to chemical company Silon, and to engineering company KOVOSVIT MAS. Obtained data were processed by basic statistic methods and are presented in charts and graphs. The purpose of thesis was to map employees familiarity with about harmful effects of chemicals and actions leading to keeping health during working with dangerous chemicals and to find out the level of keeping employees informed about rules which should the company work out and respect along with Authority of protection of public health according to §44, subsection 7 law Nr. 258/2000. In the research were stated two hypotheses: First Employees are informed about harmful chemicals and measures for health during working with dangerous chemicals. This hypothesis was confirmed, employees proved that they mostly remember being informed about harmful impacts for their health of chemicals and mixtures and about categorization of chemicals, and they work with. Second hypothesis: Principles of safe dealing with dangerous chemicals are accepted by employees. This was also confirmed. According to obtained information and evaluated data should be this thesis a source for management of both companies in the area of handling chemicals. The employers can take necessary measures to increase knowledge of employees. It can be also useful to public and students for getting more information about the topic.
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