Artisanal refining Plants are common features of the Niger Delta Region of Nigeria. The effects of heavy metal contamination on soil by non-conventional refining plants were investigated and analyzed using standard methods. Two soil samples were collected at 18 m intervals between Plants A and B and at 24 m intervals between Plant B and C. Then control sample was collected 2 km away from unimpacted soil. The result of the analysis showed that polynuclear aromatic hydrocarbon (PAH) recorded maximum concentration of 6899.4942 ppm at station C at the depth of 0-15 cm. Furthermore, the concentration of heavy metals investigated are below critical levels as proposed by FEPA (1991) and NCC(1991).
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