Authors : Anwar Mallongi, Fadly Nur Rahman Umar, Atjo Wahyu, Muh. Saleh, Fatmawati , Abdul Muhith, Herawati , Muhammad Ridwan, A.L. Rantetampang and Yacob Ruru
Abstract: The amount of exhaust emissions resulting from the burning of motor vehicles caused the air in the city of Makassar to be polluted. This study aims to estimate the concentration of Sulfur dioxide (SO2) and Nitrogen dioxide (NO2) for 10 years (2017-2027) on the main road of Makassar city. This research is an observational analytic research with dynamic system model approach. Results showed that in the next 10 years, the estimated total concentration of total Sulfur dioxide (SO2) in the first scenario without do nothing in 2017 of 6.44 μg/Nm3 increased by 2027 by 8,581 μg/Nm3 by multiples of increased concentration 61.58 times/month and an annual increase of 1.80 times/year whereas the estimated concentration of Nitrogen dioxide (NO2) in the absence of control measures increased from 2017 by 4.99 μg/Nm3 increased by 2027 by 7,934 μg/Nm3 by multiples of increased concentration 37.6 times/month. Application of Second Scenario (2) has decreased total concentration of Sulfur dioxide (SO2) and Nitrogen dioxide (NO2) when compared to total concentration in first scenario (I). Increasing the concentration of Sulfur dioxide (SO2) in 2017 by 6.44 μg/Nm increased by 2027 by 3785 μg/Nm3 with total monthly concentration increase of 37.4 times/months and total annual concentration increase of 0.72 times/year. Effectiveness in the second scenario in reducing the concentration of Nitrogen dioxide (NO2) by 22.72%. Application of the third scenario (3) there is a significant decrease in the concentration of sulfur dioxide and nitrogen dioxide when compared to the first scenario (1). Effectiveness in the third scenario (3) in reducing sulfur dioxide concentration of 66.43%. Implementation of the fourth scenario (4) passenger shift for the use of bus rapid transportation (bus rapid transportation) with the aim of decreasing the volume of vehicles operating on the main road, if it is assumed that 50% of passengers switch to BRT bus, BRT passengers in 2027 will be 3960/days.
Anwar Mallongi, Fadly Nur Rahman Umar, Atjo Wahyu, Muh. Saleh, Fatmawati , Abdul Muhith, Herawati , Muhammad Ridwan, A.L. Rantetampang and Yacob Ruru, 2019. Dynamic Model of Sulfur Dioxide (SO2) and Nitrogen Dioxide (NO2) Concentration on the Main Road in Makassar City. Journal of Engineering and Applied Sciences, 14: 6703-6709.