A review on soil heavy metals contamination: Effects, sources and remedies

Abstract

The contamination of containing heavy metal has become an environmental issue globally that has attracted public attention associated with the protection of agricultural products. Soil is containing heavy metals which attract some useful heavy metals of biological toxicity, including mercury (Hg), cadmium (Cd), lead (Pb), chromium (Cr), and arsenic (As), etc. In recent years, human activities gradually increases which causes the contamination of heavy metals in soil. Pollution of Heavy metal causes a bad impact to the health and human beings due to potential accumulation risk through the food chain are well-being of organisms. Remediation using chemical, physical, and biological methods has been adopted to solve the problem. Therefore, in this paper an attempt has been made to discuss the effects of contamination of heavy metals in soil, sources of heavy metals in soil and remedies available to overcome the contamination of heavy metals in soil.