CHARACTERIZATION OF HEAVY METALS IN PM2,5 IN BANDUN

• Main Author: Timothy O K, Immanuel
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/83060
• Institution: Institut Teknologi Bandung

Air pollution is a significant environmental issue that impacts human health. One component of air pollution is particulate matter with a size of less than 2.5 ?m, known as PM2.5. PM2.5 contains various elements, including heavy metals, which can affect human health and may act as cofactors in diseases such as cancer. This study aims to characterize the heavy metals present in PM2.5 using a Mini-Volume Sampler and PTFE filters during the wet season. The samples were analyzed using EDAX-Micro XRF to identify the concentrations of 17 heavy metals and other elements. The potential sources of these heavy metals were examined using the Enrichment Factor (EF) and HYSPLIT model, and the Health Quotient (HQ) was calculated to assess non-carcinogenic health risks. The average concentration of PM2.5 was found to be 47.28 ± 9.31 ?g/Nm³, with S, Na, Si, Mg, Al and Cd being the dominant elements. Cadmium had the highest concentration among the heavy metals, measuring 0.4 ?g/m³. EF ?10 were found for Cd, Sc, V, Cr, Mn, Co, Ni, Cu, and Zn, suggesting that these metals likely originate from motor vehicle emissions and road dust by using windrose model. Additionally, the HYSPLIT model also indicates the potential for other sources from industrial areas in Cilacap City and mountainous regions in West JavaCadmium was indicated to pose a noncarcinogenic health risk with an HQ >1, while Al, Cr, Mn, and Ni had HQ ?1, indicating no significant health risk. Therefore, it is concluded that heavy metals in Bandung have the potential to pose non-carcinogenic health risks to humans, with emission sources primarily from motor vehicles and road dust.