Petroleum Contaminants from Spilled Soils in Niger Delta under Tropical Weather Conditions Studied with Validated and Traceable Methodology

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Petroleum Contaminants from Spilled Soils in Niger Delta under Tropical Weather Conditions Studied with Validated and Traceable Methodology

June 4, 2021 Chemical Science 0

Following a significant oil spill, soil pollution in the Niger Delta was explored. The contamination of soil contaminated by crude oil leaked from the Shell Petroleum marginal well head was researched a few weeks after the disaster. In the South-South Niger Delta, 50 soil soil samples (300-500 g) were collected at various locations. Control samples were gathered from four unaffected sites with similar soil properties near the spillage. At depths of 0-15 cm, 15-30 cm, and 30-60 cm, samples and controls were collected, accordingly.

Solvent extraction methods were used to prepare the soil samples for examination, and they were then run through a FlorisilĀ® and sodium sulphate column to remove moisture, gross impurities, and improve column performance. Under developed and optimised procedures, samples were analysed using gas chromatography with a flame ionisation detector.

At depths of 0 – 15 cm, 15 – 30 cm, and 30 – 60 cm, soil samples and controls were collected. Cluster analysis was used to examine the spatial distribution, penetration, and similarity of the hydrocarbons C10-C26 and C26-C34 through the soil layers, as well as the levels of penetration and migration of these compounds throughout the polluted area. When compared to the reference sites, the results revealed higher levels of hydrocarbon pollution. The Government and the respective Oil Exploration Companies were advised to conduct proper and regular monitoring of Crude Oil Well-heads, as well as drastic and appropriate cleanup methods.

Author (s) Details

Imeh J. Okop
Chemistry Department, Akwa Ibom State University, Nigeria.

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