Metal–Metal Correlation of Biodegraded Crude Oil and Associated Economic Crops from the Eastern Dahomey Basin, Nigeria

The presence of heavy metals in plants from oil sand deposits may reflect mineralization resulting petroleum biodegradation. Petroleum composition and metal analyses were performed using thermal desorption gas chromatography atomic absorption spectrophotometry on plant root samples the same localities Dahomey Basin. results showed mainly heavy-end hydrocarbon components, humps unresolved complex mixtures (UCM), absences C6-C12 chains, pristane, phytane, indicating severe In addition, they varying concentrations vanadium (2.699–7.708 ppm), nickel (4.005–11.716 chromium (1.686–5.733 cobalt (0.953–3.223 lead (0.649–0.978 cadmium (0.188–0.461 ppm). Furthermore, these present Citrus, Theobroma Cacao, Elaeis guineensis, Cola. chromium, nickel, vanadium, lead, cobalt, Citrus 7.475, 4.981, 0.551, 0.001, 0.806, 0.177 ppm, respectively. For 7.095, 16.697, 2.151, 0.023, 3.942, 0.254 ppm. guineensis also (32.685 (32.423 (11.983 (0.190 (4.425 (0.262 amounts Cola 9.687, 9.157, 0.779, 0.037, 0.695, 0.023 World Health Organization’s (WHO) safe permissible limits for Cd (0.003 Cr (0.1 Ni (0.05 Pb ppm) agricultural soils all exceeded sand. sands their uptake by could potentially be toxic, high mortality. metal–metal correlation plant’s rootsto indicates nonanthropogenic origin metals, which leads to conclusion that source is related accumulation Afowo