HEAVY GAS DISPERSION IN ATMOSPHERIC CONDITIONS OF VIEW EMERGENCY PREPAREDNESS AND RESPONSE

Currently, in nearly daily practice it seems necessary to assess and manage the risks associated with the presence of hazardous substances. The accidents on roads, railways, industrial facilities of all sectors occur. The consequences should be disastrous, especially during and/or after release of specific gases and aerosols, and therefore it is important to ensure sophisticated emergency preparedness based on the prediction of the dispersion of these substances, including appropriate emergency response, aiming to minimize the impact on human lives, health and environment. The special issue is a dispersion of heavy gases in atmosphere, because they affect the ground layer of the atmosphere, and it is extra-hazardous for the lives and health of the population and animals. Adequate utilization of advanced information technologies and software tools will help us to achieve better and well-informed decisions based on modelling, analysis and comparison of possible solutions in real time. Due to TH01031098 "DEGAS" project adoption, supported by Technological Agency of the Czech republic, we can address the modelling of gases dispersion in small scale and for short periods of time also in the Czech Republic, which is quite unique. Project role is to contribute to gases behaviour understanding in case of their undesirable release and to design reliable dispersion model, and subsequently to validate the model in real field conditions, for example using simulation of carbon dioxide release from the container, and measuring the response of relevant detectors distributed in space and time. This article focuses on introduction of the project and it presents basic analysis of the problem to be solved.