The potential and contamination of metals Pb and Zn on the soil around Tamangapa Antang landfill

Abstract

A Study on the potential and contamination of Pb and Zn metal on the soil around Tamangapa Antang Landfill has been conducted. The study aims to analyze the potential and contamination of heavy metals of Pb and Zn on the soil around the landfill. The sample points are divided into 4 lines namely, line A, line B, line C and Line D, at the point of 5 m (laterally) with the depth of 0 to 10 cm, 10 to 20 cm and 20 to 30 cm (vertically). The total soil samples whose heavy metal elements analyzed using Atomic Absorption Spectroscopy method are twelve samples. The concentrations of Pb and Zn metals in Tamangapa Antang Landfill soil have spread horizontally on the soil surface (top soil). The concentration of Pb for Line A has exceeded the threshold (R2 = 0.10714) in every depth, while in Line B, Line C and Line D, the concentration is still below the threshold. Zn concentrations for Line A, Line B, Line C and Line D are above the threshold, except Line B at the depth of 20 to 30 cm is still below the threshold (67 ppm) which is allowed by the Government of Indonesia and The General of Drug and Food Control as a contaminant in the soil. Soils pH varies from 4.82 to 6 (acid) and the average abundance of heavy metal content in the soil samples at Tamangapa Antang Landfill site is Zn> Pb. Pollution of this heavy metal has been felt by local residents from a radius of 5 to 50 m. Where the Tamangapa Antang Landfill is in the middle of a settlement, so that it can affect the health of the population around the landfill, requiring residents who are still using dug wells. Request assistance from the local government to take immediate action to avoid problems with humans and the local environment.