In order to assess the potential hazard of oil and oil product spills, it is necessary to accurately determine the evaporation rate from the multi-component spill surface. In this paper, a multi-component pool evaporation model has been built and applied to the gasoline spill. The computational procedure has been implemented in the ANSYS Fluent code 18.0 through user-defined functions (UDFs). Gasoline is represented as a mixture consisting of a fixed number of individual components, and pseudo components (narrow boiling fractions). The model has been validated against the experimental data obtained in this study. The sensitivity analysis has been performed to assess the influence of wind velocity, pool thickness, and bund walls on the pool evaporation, the mass of vapour within the flammability limits, and the size of the flammable cloud for hypothetical gasoline spills. (C) 2020 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.