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

GC-MS Quantification study of PAHs in Bituminous Soils

  • Itodo Adams Department of Chemistry, University of Agriculture, P. M. B. 2373 Makurdi, Benue State
  • Sha'Ato Rufus Department of Chemistry, University of Agriculture, P. M. B. 2373 Makurdi, Benue State, Nigeria
  • Arowojolu Michael Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in Soil Samples from Regions around Loda-Irele Bitumen Field, Nigeria.

Abstract

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.

Published
Jun 27, 2018
How to Cite
ADAMS, Itodo; RUFUS, Sha'Ato; MICHAEL, Arowojolu. Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in Soil Samples from Regions around Loda-Irele Bitumen Field, Nigeria. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 19, n. 1, p. 71-78, june 2018. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/294>. Date accessed: 19 july 2018. doi: http://dx.doi.org/10.21743/pjaec/2018.06.07.