The characterisation of the hazard of selected combustion gases on the basis of dusíkaTechnická university in Zvolen, Department of chemistry and chemical technology, bachelor thesis, 2018Bachelor thesis deals with the issue of hazardous substances produced during the burning process, the so-called burning emissions. When burning different materials creates many hazardous substances, some of which have a structure based on nitrogen. The work comes close to the possible hazardous compounds and their properties with which they come into contact down components of the integrated rescue system (hereinafter: IZS), but also the civilian population. Toxic products of nitrogen can occur in environments of fires or other adverse events. The goal of the work is to bring the character and behavior of the nitrogen compounds. Also to point out the harmful effects, the ability to threaten the health of the person, n some cases, cause permanent harm, and ultimately death. Intervention in such environments is a very challenging and dangerous for ingredients that are privolané on the place of undesirable events, and for persons residing in a given area.