Effect of Contamination of Heavy Metals in Soil and Its Mitigation Strategies: A Review

Abstract

Rising soil pollution has recently emerged as a significant global issue due to increased industrialization, urbanization, and inadequate waste management. This review thoroughly examines the presence of common heavy elements in damaged soils, such as Pb, Cr, As, Zn, Cd, Cu, Hg, and Ni, utilizing publically available literature. It discusses the concepts of phytoremediation, soil cleaning, and immobilization, highlighting the advantages and drawbacks of each method. These techniques are widely recognized as effective means to remediate heavy metal-polluted soil, addressing associated risks, freeing up land for agriculture, bolstering food security, and resolving land tenure issues arising from changing land use patterns.