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Emergency action plan in case of accident with ammonia leak at the Winter Stadium Kotlina Havlíčkův Brod
ZEZULOVÁ, Jana
The amount of ammonia used for cooling stadiums is usually lower than the limits stated in annex to the Act about prevention of fatal accidents caused by dangerous chemical substances, and for this reason the stadiums aren't subject to such strict security procedures determined by the law. However, these are places where big amounts of people can gather in a certain moment, thus in case of accident and ammonia leak, the health condition of many people could be threatened, given the fact that some of them don't even realise how to behave in such a situation. In the introduction of my thesis I focused my attention on the issues of extraordinary events, dangerous substances and products, on the legislation concerning the sphere of chemical substances and protection of population and accidents associated with the spills of dangerous substances. My work also contains the characteristics and description of ammonia and computer programmes used for modelling of consequences of accidents associated with spills of dangerous chemical substances. In the practical part of my thesis I simulated an accident with ammonia leak from Winter Stadium Kotlina in Havlíčkův Brod using the programming tool TerEx and from the results that I obtained I suggested a ?emergency action plan" targeting the analysis of eventual evacuation of pupils and pedagogical staff from the neighbouring primary schools. I used interviews with headmasters of primary schools for the purposes of this analysis. Furthermore, I analysed the population's level of awareness and knowledge of the problem (people living in the area of simulated zone of danger) and pedagogical staff from the neighbouring primary schools in the issues of correct practice in case of ammonia leak from the winter stadium. A part of thesis is a leaflet warning processed and an information poster intended for the population living in Havlíčkův Brod about correct practice in case of release of hazardous chemicals.
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A simulated accident of a rail tank car in the railway station Jihlava with subsequent leakage of ammonia.
VÁLEK, Luboš
This diploma thesis dealing with a simulated accident of a rail tanker in the railway station in Jihlava with subsequent leakage of ammonia has been prepared in the form of public and available information that provides a brief overview about the topic. In the introduction, possible types of extraordinary events are described with individual examples. In another part of the thesis, extraordinary events in traffic are mentioned as well as accidents connected with leakage of dangerous substances. The follow-up chapter deals with the issue of emergency planning, aimed particularly at leakage of ammonia. The remaining part is devoted to the integrated rescue system. Another chapter deals with ammonia toxicology with examples. The following part concerns railway haulage, including rail transport of ammonia. The following chapter describes the chronology of an extraordinary event with the follow-up solution. In the diploma thesis, research of awareness of the general public about ammonia is presented. The conclusion contains specification of problems that occurred during preparation of this paper. Also comparison with specialized literature is provided as well as the author{\crq}s own ideas.
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Retention of nutrients in floodplains
Vymazal, Jan
Nitrogen and phosphorus transformations in floodplains are manifold and very intensive. However, the intensity of the processes depends very much on climatic and geomorphological conditions and also vegetation may play very important role. Probably the most important process responsible for nitrogen removal in floodplains is denitrification which takes place in anoxic/anaerobic soil and litter layers. Substantial removal of nitrogen may also occur via accumulation in the aboveground plant biomass. This process, however, does not remove nitrogen from the system unless the biomass is harvested. The most important process responsible for phosphorus retention in floodplains is sorption on sediment particles deposited during the flood. Removal via plant harvesting may also add to phosphorus removal.
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