Comparative assessment of heavy metal contamination of abandoned and active dumpsite of Osun waste management, Ejigbo Road, Osogbo, Osun State, Nigeria

This study conducts a comparative assessment of two dumpsites (abandoned and active dumpsite) around Osogbo metropolis Osun State Nigeria. Ten selected heavy metals (HMs) such as arsenic, copper, cobalt, cadmium, chromium, iron, nickel, manganese, lead zinc were determined. The soil samples collected, at strategic points to revealed variation in samples. concentrations HMs quantitatively determined using atomic absorption spectroscopy. results indicated that all the found between below detection limit (bdl) 0.611 mg/kg bdl –0.880 for abandoned dumpsites, respectively. concentration factor geo-accumulation intensity no contamination strong from uncontaminated intensity, some tolerable recommendation level by National Environmental Standards Regulation Enforcement Agency Food Agriculture Organization/World Health Organization recommends periodic monitoring possible decontamination dumpsite are crucial because these currently use crops cultivation maize, vegetable bananas, other arable plants. Also, HM should be investigated monitored regularly order avert detrimental effects pollution, which could manifest many years after exposure, they recalcitrant environment.