Publication Date: 2023/12/14
Abstract: This study was carried out to evaluate the environmental impacts of mining of precious metals in Anka and Gusau in Zamfara state. Specific areas of interest are Brithway Minerals (BM) and the artisanal mine site in Sunke (MW). Representative Samples of soil and water were collected and the concentrations of heavy metals (Pb, Zn, Ni, Cd, As, Mn, Hg) as well as their physiochemical properties were analyzed using standard analytical procedures. Results of the analysis show values of heavy metals such as lead and mercury above the threshold limit when compared with World Health Organization (WHO) standards for drinking water and ECDGE (European Commission Directorate General for Environment). Lead values higher than 0.01mg/L were recorded in all water samples analyzed and get extremely high in abandoned ponds consequent upon mining activities. Field investigation reveals the practice of whole ore amalgamation, the engagement of teenagers, excessive noise and dust from processing, and complete neglect of personal protective equipment (PPE). The need for monitoring, education, and enlightenment on various available environmentally safe and eco-friendly mining technologies that will enhance safe operations was highlighted as possible solutions to curtail health and environmental malaise.
Keywords: Heavy metals, threshold limit values, mining and processing, environmental implication.
DOI: https://doi.org/10.5281/zenodo.10376000
PDF: https://ijirst.demo4.arinfotech.co/assets/upload/files/IJISRT23DEC574.pdf
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