Effects of Crude Oil Inundated Soils on the Ecosystem A Case Study
| Autor: | Selegha Abrakasa, M. C. Onojake |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Total organic carbon
chemistry.chemical_classification Soil test General Physics and Astronomy Crude oil law.invention chemistry.chemical_compound Hydrocarbon chemistry law Environmental chemistry Soil water General Materials Science Ecosystem Total petroleum hydrocarbon Physical and Theoretical Chemistry Atomic absorption spectroscopy Mathematical Physics |
| Zdroj: | Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences. 60:106-113 |
| ISSN: | 2223-2559 2221-6413 |
| Popis: | Crude oil inundated soils were collected from Agbada field after a recorded incidence of oil spillageto ascertain the effects of the oil spill on the soil status. Soil samples were collected from (0-30 cm) depths,using the grid sampling technique. Total petroleum hydrocarbon content (TPH) of the impacted soils rangedfrom 1.81541×103-4.8525040×103 mg/kg. The levels of total organic carbon (%TOC), pH, conductivity,sulphates, nitrates and phosphates were enhanced in impacted soil. The concentration of some trace metalssuch as Cd, Cu, Cr, Pb, Ni, Fe and V were also analysed using atomic absorption spectroscopy. Cd rangedfrom 0.2-0.38 mg/kg, Cu ranged from 4.20-5.20 mg/kg, Cr ranged from 18.40-44.40 mg/kg, Pb rangedfrom 1.20-30.40 mg/kg, Ni ranged from 2.40-2.70 mg/kg, Fe ranged from 17581.77-30273.25 mg/kg andV ranged 0.20-0.30 mg/kg. Most of the trace metals were highly enhanced in the impacted soil. Multivariatestatistical analysis was carried out on the dataset to unveil the variation and relationship among them.Results showed that the first three principal components with the eigen values greater than one (>1.0)represent 93.4% of the total variability, suggesting that three principal components effectively describethe disparity in the data set. It was concluded that soils impacted with high hydrocarbon content; ultimatelyaffect its physicochemical characteristics, which in turn impinge on the agricultural potentials of the soil. |
| Databáze: | OpenAIRE |
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