Assessing the concentrations of heavy metals on the surface and ground water qualities around an open dumpsite in Lapite, Akinyele local government, Oyo state

The exponential increase in human activities due to population growth, industrialization, and urbanization has heightened concerns regarding waste disposal. Due to a lack of hygienic disposal techniques, the majority of city dwellers now rely only on open landfills for waste deposition, which causes leachate buildup. Waste materials that pollute surface water may infiltrate and contaminate the underground water that were closer to the site. This study sought to ascertain the levels of heavy metals and physicochemicals in surface and ground water surrounding an open waste site in Lapite, Akinyele Local Government. The concentrations of the physicochemical analysis of the surface water and ground water were higher in BOD and alkalinity ranging from 22.03±0.00a-28.39±0.01a and 429.90±0.00a-703.90±0.01b respectively when compare with the permissible limits while the levels of heavy metals in groundwater and surface water, which have been achieved with an Atomic Absorption Spectrophotometer (AAS) after appropriate digestion method with higher values in Magnesium (0.953±0.01a-1.996±0.02a), Iron (0.067±0.01a-0.324±0.01a), Maganesse (0.953±0.01a-1.816±0.02a), Cadmium (0.991±0.02a-1.542±0.01a) and Lead (0.211±0.00a-0.412±0.00a). All metal's concentration was compared to the WHO's determined allowable limit. Given these elevated results obtained from this location, it is likely that the surrounding environment is becoming more contaminated and can percoliate more into the groundwater as times goes on.