Abstract This study focuses on modeling NO2 emissions, from a residual biomass gasification plant in Batata, Tierralta, Córdoba, Colombia. It employs a methodology that integrates emission source analysis through stoichiometric calculations and mass balances. Meteorological conditions are determined using data from the NASA POWER® satellite and IDEAM stations. Given the need for accuracy in air pollution modeling, the Aermet View® software is used to obtain and validate one-year hourly meteorological data. These outputs serve as inputs for the AerMod View® model to simulate dispersion patterns and analyze NO2 concentrations. Simulation results indicate that the highest NO2 concentrations are localized around the gasification activity area. However, these concentrations remain within the permissible standard of 200 μg/m3. Further analysis suggests minimal health risks to the local population, as concentrations within the town center comply with safety standards. On an annual basis, the study finds that concentrations do not surpass the 60 μg/m3 threshold. The study’s findings underscore the environmental feasibility of establishing a biomass gasification plant and highlights the project’s potential to contribute to waste management and energy production in isolated communities. Furthermore, the research emphasizes the importance of adopting sustainable practices aligned with both environmental and public health objectives.