Abstract:
Introduction: Unsustainable natural resources utilization is on the increase in the
developing countries thus the ability of many local communities to meet their
basic needs including food, water and shelter is jeopardized. Uncontrolled gold-
mining in Sikasso region is one such an anthropogenic activity that is of great
environmental concern to the local and national governments of Mali owing to
its potential impacts on water quality, human health and environment. This study
was conceived to assess the impacts of artisanal gold mining on water quality in
Tangandougou in Sikasso region of Mali.
Materials and Methods: In this descriptive study, water samples were collected,
processed and analyzed for heavy metals (Lead, Cadmium and Arsenic)
according to APHA protocols. Measurements of physical parameters of water
quality were done according to APHA protocols. Data were analyzed using both
descriptive and inferential statistics.
Results: There were no significant spatial differences in physical and chemical
parameters (pH, Temperature, Conductivity, Total Dissolved Solids and Salinity)
of water quality amongst the sampling sites. However, the heavy metals
concentrations in the sampled water exceeded WHO drinking water quality
guidelines.
Conclusion: It was concluded that the water of Sanka rani River and its tributaries
is contaminated and may cause adverse effects on human health due to
bio magnification and the bio accumulative nature of heavy metals. Therefore, the
study recommends continuous monitoring of the water quality in all water sources
adjacent to gold-mining areas to protect human and environmental health
