Bacteriological and heavy metal assessment of a tropical crude oil- polluted soil, water and sediment

Crude oil-polluted environment serves as a reservoir of microbial species, especially bacteria. Determining these bacterial genera is great benefit to environmental assessment and recovery. This study evaluated the bacteria selected heavy metals present in crude sites K-dere community, Ogoniland. The was carried out at Department Microbiology, University Port Harcourt, Rivers State, Nigeria. soil, water, sediment samples were collected from pH composition each sample determined using meter spectrophotometer, respectively, while isolation biochemical characterization done evaluate heterotrophic hydrocarbon utilizing sample. Results revealed that iron (Fe) had highest concentration soil (898.77±0.022 mg/kg) (1556.7±0.163 samples, lead (Pb) lowest overall concentration. total petroleum (TPH) (10410.5 exceeded DPR standard limit 5000 mg/kg for soil. results culturable counts (TCHBC) (TCHUBC) showed TCHBC TCHUBC values 2.66 ± 0.03 x 108 CFU/mL 4.7 0.14 107 respectively. Morphological isolates presence Pseudomonas spp, Bacillus Acidiphilium Mycobacterium spp Leptospirillum with having percentage occurrence. has useful species sampled which can be harnessed an situ cleaning oil- contaminated site, tropical region.