Analysis of Heavy Metal in Soil through Atomic Absorption Spectroscopy for Forensic Consideration

Abstract

As we know that the soil is the most important component of earth ecosystem, which has four key functions: it is a means for the growth of plants, is a means of storage, supply and purification of water, is a modifier of the earth's atmosphere. Soils can be infected by the accumulation of heavy metals and metalloids through the emissions of industrial waste, elimination of high quality metal waste, application of soil fertilizers, sludge purification, pesticides, sewage irrigation, coal combustion residues, petrochemical spills and atmospheric storage. Even though heavy metals are naturally found in the soil, geological and anthropogenic activities increase the concentration of heavy metals in harmful quantities which is dangerous for both plants and animals. In forensic science heavy metal analysis of soil Heavy metal is providing a unique fingerprint of any soil. The goal of this study will to determine if there is a correlation between land use type and concentrations of heavy metals in soil and characterisation of soil.Atomic absorption spectrometry (AAS) is a technique which is helpful to measuring the quantities of trace elements present in soil samples.