Comparison of PM2.5 Measurements by Air Quality Monitoring Stations and Filter-based Method in Jakarta, Indonesia

ENDAH DAMASTUTI, Muhayatun Santoso, Desie Khoeratunnisya, Syukria Kurniawati, Djoko Prakoso Dwi Atmodjo, Faizal Ramadhani, Woro Yatu Niken Syahfitri, Feni Fernita Nurhaini, Philip K. Hopke, National Innovation and Research Agency (BRIN), Indonesia

     Abstract Number: 599
     Working Group: Urban Aerosols

Abstract
Fine particulate matter, PM2.5, is considered to be the most significant ambient air pollutant in terms of potential health impacts. Indonesia is a vast archipelago with major cities scattered all over the island. It is very important for the government to be able to accurately assess the exposure of populations to PM2.5 across municipal areas. However, equity becomes the constraint in maintaining the sustainability of air quality management implementation across Indonesia. Several big cities in Indonesia have an Air Quality Monitoring Station (AQMS) to monitor air quality, including PM2.5, but only a few cities can maintain the operation of AQMS due to high costs. We conducted a comparative study of daily PM2.5 concentrations using a filter-based super SASS reference sampler and AQMS as an alternate method on air quality assessment. The study was conducted at two sites in Jakarta City; Central Jakarta (May 2022- January 2023) and North Jakarta (February-March 2023). The results showed that PM2.5 in Central Jakarta was 33.0 ± 15.4 µg/m3 by AQMS and 31.1 ± 15.4 µg/m3 by SASS, while in North Jakarta was 33.9 ± 12.6 µg/m3 by AQMS and 26.7 ± 12.6 µg/m3 by SASS. The results gave a good correlation with a coefficient of determination value (R2) of 0.94 and 0.95 for Central and North Jakarta respectively. It also found that ratio of AQMS to SASS PM2.5 concentration was shifted on PM2.5 concentrations higher than 40 µg/m3. The results of this study are expected as reference based on designing the air quality management plan for cities in Indonesia.