Analysis of iron (Fe) heavy metal content in soil at the Talumelito Landfill in Gorontalo Regency

Abstract

Soil contamination due to waste accumulation in landfills has the potential to increase the accumulation of heavy metals such as iron (Fe), which can affect environmental quality. The purpose of this study was to analyze Fe levels in soil at the Talumelito landfill in Gorontalo Regency. Samples were taken at four locations, each of which was divided into two sub-locations using purposive sampling. The samples were then analyzed at the Gorontalo Province Regional Health Laboratory (Labkesda) using atomization to obtain accurate Fe concentration values. The analysis results showed that the Fe content at all points was relatively uniform, ranging from 22 mg/L. The highest value was found at point C at 22.82635 mg/L, while the lowest value was at point B at 22.55940 mg/L. This narrow range of values illustrates the stable distribution of Fe in the landfill area. When compared to the quality standard of PP No. 101 of 2014 of 200 mg/L, all research results were well below the threshold.