Abstract
This paper aimed to assess the water quality and estimate the percentages of potentially toxic elements that would be removed to make water resources in Ojoto and its environs (Nigeria) safe for drinking. Standard procedures were followed in physicochemical analyses. Novel integrated-weight water quality index revealed that only 4 out of 28 water stations were suitable. Heavy metal toxicity load estimated that 92%, 48%, 89%, 79% and 98% of Fe, Zn, Ni, Cr and Pb, respectively, are required to be removed from the waters to reduce pollution. Hierarchical agglomerative clustering showed the spatiotemporal water quality classes in the study area.
Disclosure statement
The authors hereby declare that there are no known competing interests.