Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in Soil Samples from Regions Around Loda-Irele Bitumen Field, Nigeria | Zendy

A. U. Itodo | Zendy; Rufus Sha’Ato | Zendy; M. I. Arowojolu | Zendy

Open Access

Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in Soil Samples from Regions Around Loda-Irele Bitumen Field, Nigeria

Author(s) -

A. U. Itodo,

Rufus Sha’Ato,

M. I. Arowojolu

Publication year - 2018

Publication title -

pakistan journal of analytical and environmental chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.155

H-Index - 3

eISSN - 2221-5255

pISSN - 1996-918X

DOI - 10.21743/pjaec/2018.06.07

Subject(s) - pyrene , environmental chemistry , dichloromethane , extraction (chemistry) , soil water , chemistry , detection limit , pollutant , gas chromatography , chrysene , soil test , accelerated solvent extraction , phenanthrene , environmental science , solvent , chromatography , organic chemistry , soil science

Polycyclic aromatic hydrocarbons (PAHs) were investigated in soils of Loda-Irele (geographical coordinate 6°29'0″N 4°52'0″E), Nigeria. Soxhlet extraction technique was used for soil PAH extraction using dichloromethane as extracting solvent. PAHs in the samples are estimated using Gas chromatography-mass spectrometer (GC-MS). The PAH concentrations were higher than 110 ppb in most samples, pointing to anthropogenic and petrogenic sources of the pollutants. Most PAH concentrations fall within the expected limits for a rural environment and below the threshold limit. However, 12.08 and14.68 ppb for Benzo(e)pyrene and 5.62 ppb for Indenol (1, 2, 3 – cd) pyrene exceeded the expected limit. Dominating 4 - 6 ring PAHs showed the PAHs were from pyrolytic sources. The concentrations of PAHs are not significant (p>0.05) compared to maximum allowable concentrations in soils.

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