Modeling air quality in Hochiminh city and scenarios for reduction air pollution levels

Abstract

Air pollution in general, espccially air pollution from road traffic in particular in Hochiminh City (HCMC) are at the alarming. Using models to simulate air quality is needed to managc and predict the air pollution levels. Research results have prepared emission inventory of air pollutants from road traffic, industry and domestic sources in HCMC. Besides, TAPOM and FVM models vvere uscd to simulatc ihe meteorological conditions and air quality in HCMC. Emission inventory results from road traffic show that emission from motorcycles account for a signiiìcant amount o f total load of pollutant emissions from thai source. Simulation results of air quality give better results when using emission inventory with traffic emission factors were cstimatcd in HCMC. In addition, some scenarios to reducc pollution levels in general, especially air pollution from road traffic in particular show that, if rcduce 50% number of motorcycles (private transportation) and incrcase 10 times numbcr of bus (public transportation), air quality will more improve and can rcducc traffic jam.