This study quantifies aircraft Landing and Take-Off (LTO) emissions at Hazrat Shahjalal International Airport (HSIA), Dhaka, Bangladesh. Using ICAO-recommended methodologies, annual emissions of NOx, CO, HC and PM₂.₅ were estimated for dominant aircraft fleets operating during 2022–2025. The research provides a baseline aviation emission inventory for Bangladesh and highlights the environmental implications of airport-related air pollution. Future work will focus on atmospheric dispersion modelling and community exposure assessment around HSIA.

Keywords: Aviation emissions, Aircraft emissions, LTO cycle, Airport air pollution, Air quality, ICAO, Emission inventory, Environmental chemistry.