Analisis Kandungan Logam Berat Tembaga, Timbal, dan Seng pada Road Dust Resuspension Suspension (RDR-S) di Kawasan Pinang Baris

Abstract

The development and changes in technology produce emissions, especially from transportation activities that are affected by tire and brake wear, which produce road dust in the form of solid particles, thus triggering air pollution. This study aims to analyze the levels of heavy metals in Road Dust Resuspension-Suspension (RDR-S) in the Pinang Baris area, Medan City. Analysis was carried out on copper (Cu), lead (Pb), and zinc (Zn) metals. Samples were collected using a vacuum with a purposive sampling method where sampling was carried out according to the objectives and criteria in the study. The dust was sieved with a size of 200 mesh then destroyed with an acid method referring to SNI-8910:2021 and analyzed using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) with maximum wavelengths for Cu, Pb, and Zn metals of 327,395 nm, 220,353 nm, and 213,857 nm, respectively. The concentration of heavy metals at point I was 0,90 mg/L, Pb was not detected, and 0,33 mg/L, respectively. At point II was 0,61 mg/L, 0,50 mg/L, and 0,27 mg/L. The correlation coefficients at point I were 0,9999; 0,9999; 0,9991 and at point II were 1; 0,9999; 0,999. The results showed that the correlation coefficient met the acceptance standard, namely between 0,995 and 1.