The second step to assess the impact of any industrial activity on the environment is to elaborate an Air Dispersion Model (ADM) to understand the Ground Level Concentrations (GLCs) at the nearby sensitive receptors. The ADM enables to have a deep understanding on the influence of meteorological conditions as well as geographical constraints on the plume pattern that can carry pollutants over very long distances in a very short time. The ADM can be also run to assess the fo