The aim of the work is to assess the contribution of emissions from forest fires to air pollution using the example of the territory of the Pribaikalsky National park. To achieve this goal, calculations of gross emissions were carried out based on forestry data on fires. With the help of the program complex «Ecologist» calculations of concentrations of impurities emitted into the atmosphere during forest fires were carried out. Based on the results of the calculations, maps of the concentrations of pollutants released into the atmosphere from fires were created. The analysis of the received results obtained allowed us to conclude that the established sanitary and hygienic standards were exceeded. Among the considered list of emissions, the maximum concentrations of acrolein, carbon monoxide, acetone, and nitrogen dioxide were revealed. The areas located in the zone of increased atmospheric pollution created by fires on the territory of the forestries of the Pribaikalsky National park were identified.