Assessment of petroleum oil contamination effects on soil characteristics in farmland surrounding automobile workshops: a case study in Yenagoa, Bayelsa State, Nigeria

Abstract

The study investigates soil characteristics in farmland surrounding an automobile workshop in Yenagoa, Bayelsa State, to assess petroleum oil contamination levels. Soil samples from multiple locations reveal significant differences in pH, nutrient levels, and heavy metal concentrations between workshop sites and a control area. Results indicate a pronounced impact of petroleum oil waste on soil quality and heavy metal content. For example, pH levels at contaminated sites (L1-L3) were significantly lower (P < 0.05) than the control (L0). The findings underscore the urgent need for regulatory standards in waste disposal and ongoing monitoring of soil quality to mitigate environmental degradation. Recommendations include enforcing waste management guidelines, conducting regular soil assessments, and raising public awareness on preserving soil fertility. By implementing these measures, stakeholders can work towards sustainable land management and ecosystem protection.