Abstract
Pollution by heavy metals in aquatic ecosystems has become the central focus of environmental research, due to the threat it poses to consumers of fishery sources. This study seeks to assess the levels of accumulation and potential human risk associated with heavy metals in Chrysichthys nigrodigitatus from Ologe and Badagry lagoons Southwestern Nigeria. The metals (Cr, Cd, Fe, Ni, Cu, Zn, and Pb) in fish samples were analyzed with atomic absorption spectrometer (AAS), while the estimated daily intake (EDI), target hazard quotient (THQ) and target cancer risk (TR) were also estimated. All metals in the muscles of C. nigrodigitatus were below the WHO/FMEnv guideline.
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