In the final work is made a comparison of values of the concentration of harmful gases at the outlet from the chimney cement, and the concentration of harmful gases in the measuring station, which is responsible for continuously monitoring the concentration of harmful gases in order to ensure the quality of life of the people in the environment. The datas are at all times available to the public, and are changed every hour. Measurements of concentrations and meteorological conditions are archived, and are showed in the annualized operating reports. Gaussian dispersion model is made based on these data of the output values of the concentration of discharge (emission), and the data on the state of the atmosphere and the wind. Gaussian dispersion model is developed based on the data archived at the Croatian Meteorological and Hydrological Service for measuring station Zoljan and cement plants in the vicinity, which has under duty publiched data measured at the output of harmful emissions during the year. For display are taken datas which were collected for one year (including all seasons, and therefore different values of humidity, wind direction and intensity and temperature, and the capacity). The concentration values at the stack, the measuring station and the maximum ground concentrations are showed. Creating a Gaussian dispersion model of pollutants is important to understand the flow of pollutants that after the emission are coming in our immediate vicinity, as well as how these substances affect animal and plant life, and even are possible threat to human life. Also, it is important for the future development of technology, the use of recycled materials and etc. In this work, attention is focused on greenhouse gas emissions of sulfur (IV) oxide SO2 emitted from the chimney cement during the technological process. The detrimental effects of these pollutants, the influence on the formation of acid rain, etc are described.