Heavy Metal Concentration and Risk Assesment of Oil Spill Contaminated Soil from Ogoni in Rivers State, Nigeria


Authors : Menkiti,Nora Azuka; Osuji, Leo. C; Onojake, M.C.

Volume/Issue : Volume 8 - 2023, Issue 2 - February

Scribd : https://bit.ly/3T4my2B

DOI : https://doi.org/10.5281/zenodo.7712888

This study investigated the level of Cu, Zn, Fe, Pb, V, Ni and Cd in sediment samples of an oil-spillimpacted site in Ogoni land, Okenta Alode, Eleme local government area, Rivers state, Nigeria. Soil sediments were collected from six different stations, with two from each station at surface (0 – 15 cm) and in-depth (15 – 30 cm) levels. One of the stations involves a bioremediated site, which was used as the control for the study, while the other station involves oil-spill-impacted sites. Bioremediated soil, obtained at about 200 meter away from the contaminated site was also collected making a total of twelve (12) samples, with the coordinates of the locations recorded with GPS device. Sample preparation and analysis were carried out using American Society of Testing Material (ASTM) D5708 (classic wet chemistry method) using the appropriate NIST standards. The filtrate which was containing the heavy metals in solution was then analyzed using

Keywords : Heavy Metals, Sediment, Remediated, Contaminated, Human, Ecological, Health Risk, Permissible Limit.

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