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The article deals with the issue of accidents associated with hazardous substances, their prevention. Modeling of these accidents was chosen as a form of prevention. The production of dangerous toxic substances is currently growing, especially in the industry. The response to this trend is to introduce safer technological processes and preventive measures. These measures serve to prevent or at least reduce the risk of accidents and thus the escape of dangerous substances. To implement prevention, effective measure...

The article deals with the development of geoinformatics procedures accelerating and simplifying the application of the scattering model SYMOS?97 (Gaussian model), for selected pollutants in the open air to an area with a large number of sources and reference points. They are compared here with real measured concentrations of these persistent organic pollutants. One of the chapters illustrates the spatial and temporal variability of the ratios of the contributions of individual resource sectors to the total air po...

The aim of this article is to create a risk analysis of selected school facilities which can be an auxiliary tool of security solutions against terrorism. Most terrorist attacks are focused on so-called soft targets - crowded places, which are not secure against violent attacks. Furthermore, attacks on school facilities abroad are frequent too. A wellprepared risk analysis is a necessary method to detect weaknesses and strengths of the security of a soft target. The university in Zlin in the Czech Republic was cho...