FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL
(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170
keywords: Ecological risks, toxic metals, human health indices, mixed contaminants, soil
The study assessed the levels, ecological and human health risks of mixed contaminants (toxic metals and petroleum hydrocarbons) in soils under different land uses in Makurdi, Nigeria. Composite surface soil samples at auto-repair site, abattoir, waste dumpsite and farmland, all located in Makurdi were characterized physicochemically and assayed for Cd, Cu, Ni, Pb, Zn and total petroleum hydrocarbon (TPH) concentrations. Ecological and human health risk indices were calculated from corresponding contaminant concentrations and relevant reference data. The surface soils were predominantly sandy and alkaline (pH 7.1 – 8.4) with contaminant concentrations (mg/kg) in the ranges: ............................................................
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