ESTIMATION OF NITROGEN OXIDE (NOX) EMISSIONS FROM MOTOR VEHICLES BASED ON FUEL CONSUMPTION IN KUALA LUMPUR METROPOLITAN CITY, MALAYSIA

One of the major sources of urban air pollution in Kuala Lumpur is attributed to more than 17 million units of motor vehicles that have an impact on human health. This study focused on nitrogen oxide (NOx) emissions from four classes of motor vehicles such as private cars, motorcycles, and goods vehicle from 2010 to 2014 using fuel consumption analysis. The study revealed that private cars were responsible for the majority of NOx emissions, with 3,854 kg in 2010 increasing to 5,726 kg in 2014. During the same period, motorcycles emitted 1,200 kg in 2010 and 1,750 kg in 2014, while goods vehicles emitted 199 kg in 2010 and 219 kg in 2014.The results of this study are important to policymakers and stakeholders. In particular, for the planning of various strategies to reduce and control the impact of air pollution from motor vehicles, especially on human health, in Kuala Lumpur.