ANALYSIS OF VARIATIONS IN CO AND SO2 CONCENTRATIONS IN THE AMBIEN AIR OF DKI JAKARTA AND ITS RELATIONSHIP TO METEOROLOGICAL FACTORS

• Main Author: Afifah, Shofia
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/64809
• Institution: Institut Teknologi Bandung

Studies on the impact of air pollution need monitoring data analysis from contiouos measurement. DKI Jakarta province is one of the regions in Indonesia that has complete continuous monitoring data. This study aims to analyze CO and SO2 time series monitoring data and determine the correlation of meteorological factors with CO and SO2 concentrations. The 30-minute mean concentration data from 2018- 2020 were taken from 5 AQMS of Environment Agency of DKI Jakarta Province. Throughout the observation period, the daily average exceedances of CO and SO2 occured at all stations. The exceedances of CO occured mostly at DKI5(Kebon Jeruk), while for SO2 occured mostly at DKI4(Jagakarsa). In general, in the DKI Jakarta area during 2020 CO concentration levels decreased, while at the opposite SO2 increased. The decreasing in CO concentration levels in 2020 is thought to be related to the implementation of restrictions on human activities due to pandemics so that vehicle emission levels decreased. The industrial activity that dominates SO2 emissions did not contribute much to the decrease in pollutant concentrations. Diurnal variations of CO across all stations have the same pattern, where peak hours occured around 07:00 - 08:00 and 22:00 - 24:00. Sulfur dioxide diurnal variations at stations DKI1, DKI3, DKI4, and DKI5 have no specific pattern and tended to fluctuate hourly. However, at DKI2 station the pattern of peak time around 07:00 - 08:00 was observed. Monthly variations of CO showed that the highest levels of CO concentrations occurred in February, while that of SO2 indicate concentration levels occur in October, November, January, and February. In general, most of meteorological factors correlated significantly with CO and SO2 concentrations at all stations, except in DKI2(Kelapa Gading). Temperature and wind speed were negatively correlated weakly with CO concentrations and showed weakly positive correlation with SO2 concentrations. Relative humidity is positively correlated with CO concentrations and weakly correlated negatively with SO2 concentrations. The correlation coefficient value between meteorological factors and CO concentrations were within the range of 0.14 to 0.68, while with that of SO2 concentrations, were within the range of 0.12 to 0.45.