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Extraordinary events in the Aquapark in Uherské Hradiště
KUBÍČKOVÁ, Kamila
The thesis deals with the issue of possible chlorine leakage from the Aqua Park in the town of Uherské Hradiště. Chlorine is a toxic substance, widely used in industry. The amount of chlorine used in the aqua park does not comply with the values stipulated under the Major Accident Prevention Act, as it is under the limits set in the act and the object therefore cannot be classified into either group A or group B. Since the aqua park falls between unclassified sources, it is not subject to any obligations under this act, including processing documentation for cases of emergency. Despite that it is necessary to ensure the safety of persons in the aqua park area, as well as in its immediate vicinity in case of leakage of large quantities of the substance. The aim of the thesis is to determine whether the aqua park can ensure preparedness for emergencies, especially for chlorine leakage. Chlorine is a moderately toxic substance which irritates particularly the respiratory system, eyes and mucous membranes, and in high concentrations, it can cause pulmonary edema and death. The thesis defines its basic physical and chemical properties, the method of using and providing first aid in case of exposure to the substance. Furthermore, it presents basic concepts related to emergencies and leakages of hazardous substances as well as basic legislation dealing with the issue. Such legislation includes primarily the Act on Integrated Rescue System, Act on Chemical Substances and Mixtures, as well as the Fire Protection Act. The thesis further includes risk assessment and analysis carried out using the Cause-Consequence Analysis or cause-effect analysis. This method is used for a better understanding of failures which can occur in an enterprise. It tries to deal mainly with the evaluation of the probability of system failures and looks for the causes of such failures. Using the Aloha and Terex software programs, a chlorine leak was simulated into the surrounding areas during the summer and winter seasons. Both programs simulated a chlorine leak in the total amount of 975 kg, under the same meteorological conditions for both seasons. Based on the specified input information, endangered zones in which it is necessary to evacuate the people were determined.
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