The main objectives of this study are to estimate the dispersion of combustion products (CO, SO 2, Smoke) and the consequences to the environment from tank fires, as well as the height of the toxic plume (plume rise). Numerical simulations were performed with the use of CFD techniques. The F.V.M was employed in this study along with a modified two-equation turbulence model, R?G k∼ ε. Parametric analysis is performed for four scenarios, all for adiabatic atmosphere. The worst case scenario for the highest concentrations of CO, SO 2 proved to be the one with a fire of 1 MW/m 2 strength and wind speed of 11 m/s, and for Smoke a fire of 1.3 MW/m 2 strength and wind speed of 11 m/s, while the highest plume rise appears to occur for the scenario with 1.3 MW/m 2 and 8 m/s.