The relative acute toxicity of spent lubricant oil and detergent was evaluated against hermit crab, Clibanarius africanus (Aurivillus) and periwinkle, Tympanotonus fuscatus (L) from the Lagos lagoon in laboratory bioassays. Based on the derived toxicity indices, the detergent (96 hr LC50 = 5.77ml/l) was found to be 1.73 times more toxic than spent engine oil (96 hr LC50 = 10.01 ml/l) when actin...

The discharge of spent engine oil in terrestrial and aquatic environments constitutes public health socio-economic hazards. In this study, the potentials organic waste (cow dung) amendments as biostimulating agents indigenous microflora for hydrocarbon biodegradation soil microcosms deliberately contaminated with (5%v/w) was investigated a period 6 weeks. Physico-chemical microbiological analys...