Computation of human health risk in surface water in Ado-Odo Ota, Ogun State, Nigeria

Abstract

Heavy metals find their way into surface and groundwater due to degrading environmental conditions, and as such consistent monitoring to avoid the adverse health implications associated with the consumption of polluted water is required. This study examined the concentrations for Lead (Pb), Nickel (Ni), Zinc (Zn), Chromium (Cr), Cadmium (Cd), Copper (Cu) and Arsenic (As) in the Surface water of River Balogun in Ota, Ogun State, Nigeria during the wet season and estimated the human health risk resulting from prolonged consumption by children and adult of dissimilar age groups without treatment. Although there were persistent occurrence of Nickel (Ni), Copper (Cu), Zinc (Zn) and Arsenic (As) in all stations sampled, the health risk assessment conducted revealed that both population groups are more likely to be affected by high concentration levels of Arsenic than any other Heavy metal present.

Environmental Quality and Human Health Risk of Urban Groundwater Sources Based on Hydrochemical Analysis: a Case Study of Suzhou, China

“…To assess the environmental health of groundwater, an evaluation method that aims to estimate the impact degree and the probability of damage from contaminants on human health can be used. It can provide scientific support for health risk management, drinking water safety, and water environment protection [23][24][25][26][27]. Focusing on heavy metals in this evaluation can help evaluate the health risks linked to consumption of the contaminated water and provide a basis for the formulation of water safety policies [28][29][30].…”