Emission inventory and simulation of air pollution for developing an air quality management plan for Tra Vinh Province (Vietnam) period 2022-2025

Abstract

Tra Vinh is a coastal province in the Mekong Delta region. In recent years, increasing economic and social development activities have been creating great pressure on the air environment in the province. Therefore, it is very necessary to develop a provincial air quality management plan to provide solutions to manage and control air pollution in the province. The study conducted an emissions inventory from three main sources (mobile, point and area sources) by using the emission factor method. Emission inventory results show that point source emission is dominated by NO2 (64.4%) and SO2 (92.7%). Meanwhile, the main pollutant of traffic source is CO (69.0%) and area source are TSP, PM10 and PM2.5 (59.1%, 72.5% and 71.1% respectively). Emission inventory data is used as input data for air quality simulation study (FVM-TAPOM model) according to the current scenario in 2022. In addition, the study also builds scenarios pollution emissions based on Tra Vinh's socio-economic development planning to 2025. The simulation results show that the air quality in Tra Vinh province is still good, the simulated parameters values lower than the threshold according to QCVN 05:2023/BTNMT. On that basis, the study has developed solutions to control air environment quality in the coming time, contributing to sustainable development for the locality and the Mekong Delta region.