Fig. 2From: Bacteria from spent engine-oil-contaminated soils possess dual tolerance to hydrocarbon and heavy metals, and degrade spent oil in the presence of copper, lead, zinc and combinations thereofGrowth pattern of a Kocuria varians PbB3, b Pseudomonas sp. PbC4, c Acinetobacter calcoaceticus PbD1 on SEO in the presence of different concentrations of Pb2+ ( No metal, 200 μg mL−1, 400 μg mL−1, 600 μg mL−1), and d quantity of SEO degraded over a period of 7 daysBack to article page