In the scientific paper data on assessment of the impact of food enterprise “ALMA” on the environment of Almaty city megalopolis are provided. An approximate level of influence of the harmful substances are emitted by production of food products on the environment is calculated. Mathematical modeling of the dispersion of pollutants in the atmosphere and calculation of the values of surface concentrations were carried out using the unified program for calculation of atmospheric pollution ERA software complex, version 1.7. It is established that the propionic aldehyde emitted in the course of preparation of food products in the amount exceeding standard requirements is dissipated within maximum permissible concentration (MPC) until reaching the boundaries of nearby houses, without rendering harm on human health, and values of background concentration of carbon and nitrogen dioxides fluctuate within MPC.