APPLICATION OF AERMOD MODELING SYSTEM IN DETERMINING AIRSHED MANAGEMENT PLAN IN BANDUNG CITY

• Main Author: Uswatun Hasanah, Ana
• Format: Theses
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/68433
• Institution: Institut Teknologi Bandung

Bandung City is one of the metropolitan cities in Indonesia with a fairly high level of anthropogenic activities. These activities, especially from the utilization of fossil fuels will produce emissions that can affect the ambient air quality condition. Ambient air quality conditon will decrease when concentrations of air pollutant increase or exceed a predetermined threshold value. In addition, the condition is also influenced by meteorological factors (rainfall, temperature, pressure, wind direction and speed) and landscape characteristics. Decreasing ambient air quality can cause adverse impacts on living things and the surrounding environment, therefore, it is necessary to manage and control air pollution in order to air quality condition is maintained / not polluted. This study was conducted to determine the capability of the AERMOD modeling system in simulating the dispersion of SO2, PM10, and NO2, analyze the air pollution risk, determine priority areas for air quality protection and management, and determine airshed management plans to overcome air pollution problems in Bandung City. Emission inventory results showed that the transportation sector is the main contributor to emissions in Bandung City, with the southern region releasing greater emissions than the northern region due to dominant sources of emissions from Padaleunyi toll road and Soekarno Hatta road. AERMOD simulation results showed that wind characteristics (wind rose) in one year (January to December) tended to move to north and east with the frequency distribution of wind speed was 86.9% weak wind (0.5-2.1 m/s). The dispersion of daily average concentrations of SO2, PM10 and NO2 in the entire area of Bandung City showed values below the ambient air quality standard with locations of higher pollutant concentrations were located in areas that also have high emission loads, namely in the southern region of Bandung City. Based on AERMOD validation test results, NMSE and FB values for SO2, PM10, and NO2 parameters were 0.41, 0.61; 0.46, 0.64; and 0.31, 0.54; respectively, or showed a fairly good performance in simulating the dispersion of SO2, PM10, and NO2 in Bandung City. The initial WPPMU class result showed class II because types of land use in Bandung City consist of residential area, dry land agriculture, plantation, rice field, and airport. Air pollution risk results showed very low, low, and medium risk, with the southern region having a tendency to be exposed a higher risk compared to the northern region of Bandung City. Therefore, the districts of Bandung Kulon, Babakan Ciparay, Bojongloa Kidul, Bandung Kidul, and Panyileukan need more attention in order to SO2, PM10, and NO2 risk would not continue to increase. Based on these results, the final WPPMU class will be same as the initial WPPMU class (non-priority area), namely class II. However, it is necessary to manage the air quality to prevent increasing pollutant concentrations. In this study, suggested airshed management plans based on the analysis of main emission source come from the transportation sector, namely using more environmentally friendly fuels, reducing number of private vehicles used, adding particulate filters to vehicles, and providing regularly emission tests vehicles in Bandung City.