Nigeria, Nov. 20 -- Severe groundwater contamination has been detected in parts of Kogi, Lagos and Kebbi states, with the federal government warning that thousands of residents may already be exposed to toxic chemicals and disease-causing microbes.

The Nigeria Hydrological Services Agency (NiHSA), in a new water quality and flood-impact assessment, reported that Kogi State recorded some of the most hazardous pollutant levels, particularly in the Lokoja Local Government Area.

The Director-General of NiHSA, Umar Mohammed, disclosed this during a press conference held at the agency's headquarters in Abuja.

Mr Mohammed said samples collected from wells and boreholes in affected communities contained unsafe concentrations of lead, cadmium, ...