Engineering Physics Annotation << Back Assessment of the Risk of Forest Fire Impact on the Population Using a Physical and Mathematical Model of Soot Formation During Pyrolysis of a Forest Fuel Element Baranovskiy N.V., Vyatkina V.A., Baranovskaya S.V. Forest fi res lead to the release of large amounts of pollutants, including soot particles. The soot formation process is largely due to the thermal decomposition of dry organic matter when exposed to elevated temperatures. The purpose of the study is to develop a mathematical model for assessing harm to public health during thermal decomposition of dry organic matter of forest fuel. A typical forest fuel (a birch leaf) was considered. Physico-chemical processes are mathematically described by a system of non-stationary differential equations of thermal conductivity and chemical kinetics with the corresponding initial and boundary conditions. The assessment of harm to public health was carried out using a deterministic-probabilistic approach. As a result of the study, typical dependences of temperature, volume fractions of phases and the probability of harm to health were obtained for conditions of exposure to a low-intensity surface forest fi re. Recommendations were proposed for the practical application of software implementation of the considered physical and mathematical model by software development engineers in the fi eld of predicting the consequences of forest fi res. Keywords: forest fi re, soot formation, condensed matter, pyrolysis, forest fuel, probability. DOI: 10.25791/infi zik.2.2024.1386 Pp. 30-39.