Quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soils
This study determined the spatial compositional occurrence, sources, and the associated risks of sixteen priority PAHs in soil depths from the selected land-use environments. Samples were collected from nine generator land-use sites in the top (0-15 cm) and sub (15-30 cm) soil depths. Sample extract...
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Online Access: | https://doi.org/10.2478/auoc-2021-0008 |
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doaj-1ff2110b79c34906bc3c88f7de7129fe2021-09-06T19:41:23ZengSciendoAnalele Universităţii "Ovidius" Constanţa: Seria Chimie2286-038X2021-01-01321536210.2478/auoc-2021-0008Quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soilsEmoyan Onoriode O.0Tesi Godswill O.1Ohwo Efe2Odali Eze W.3Environmental Chemistry and Waste Management Research Group, Department of Chemistry, Delta State University, P.M.B.1Abraka, NigeriaDepartment of Chemical Sciences, University of Africa, Toru-Orua, Bayelsa State, NigeriaEnvironmental Chemistry and Waste Management Research Group, Department of Chemistry, Delta State University, P.M.B.1Abraka, NigeriaEnvironmental Chemistry and Waste Management Research Group, Department of Chemistry, Delta State University, P.M.B.1Abraka, NigeriaThis study determined the spatial compositional occurrence, sources, and the associated risks of sixteen priority PAHs in soil depths from the selected land-use environments. Samples were collected from nine generator land-use sites in the top (0-15 cm) and sub (15-30 cm) soil depths. Sample extraction was by ultrasonication with dichloromethane/n-hexane and clean-up in silica gel/alumina packed column. The level of PAHs was determined using a gas chromatography-mass spectrometer (GC-MS). The concentrations of PAHs isomers and the Σ 16 PAHs ranged from ND to 16876 μg·kg−1, and from 346 to 44052 μg·kg−1 respectively. The Σ 16PAHs occurrence showed concentration load in the order of subsoil > topsoil. The ΣPAHs concentrations exceeded the DPR-EGAPSIN target and intervention value in 91% and 11% of the samples respectively. The total cancer risk ranged from low to moderate risk-based levels. The PAHs sources were attributed to low and high petroleum combustion emissions and stationary sources around the diesel combustion electricity generator in the land-use sites. This study revealed that the land-use activities associated with diesel combustion have contributed a significant amount of Σ16PAHs to the pollution load in the land-use sites with potential for ecological and human exposure risks.https://doi.org/10.2478/auoc-2021-0008pahssoil pollutionexposure risksanthropogenicelectricitygeneratordiesel combustionniger delta |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Emoyan Onoriode O. Tesi Godswill O. Ohwo Efe Odali Eze W. |
spellingShingle |
Emoyan Onoriode O. Tesi Godswill O. Ohwo Efe Odali Eze W. Quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soils Analele Universităţii "Ovidius" Constanţa: Seria Chimie pahs soil pollution exposure risks anthropogenic electricity generator diesel combustion niger delta |
author_facet |
Emoyan Onoriode O. Tesi Godswill O. Ohwo Efe Odali Eze W. |
author_sort |
Emoyan Onoriode O. |
title |
Quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soils |
title_short |
Quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soils |
title_full |
Quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soils |
title_fullStr |
Quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soils |
title_full_unstemmed |
Quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soils |
title_sort |
quantification, sources, and associated risks of 16-priority polycyclic aromatic hydrocarbons from selected land-use impacted soils |
publisher |
Sciendo |
series |
Analele Universităţii "Ovidius" Constanţa: Seria Chimie |
issn |
2286-038X |
publishDate |
2021-01-01 |
description |
This study determined the spatial compositional occurrence, sources, and the associated risks of sixteen priority PAHs in soil depths from the selected land-use environments. Samples were collected from nine generator land-use sites in the top (0-15 cm) and sub (15-30 cm) soil depths. Sample extraction was by ultrasonication with dichloromethane/n-hexane and clean-up in silica gel/alumina packed column. The level of PAHs was determined using a gas chromatography-mass spectrometer (GC-MS). The concentrations of PAHs isomers and the Σ 16 PAHs ranged from ND to 16876 μg·kg−1, and from 346 to 44052 μg·kg−1 respectively. The Σ 16PAHs occurrence showed concentration load in the order of subsoil > topsoil. The ΣPAHs concentrations exceeded the DPR-EGAPSIN target and intervention value in 91% and 11% of the samples respectively. The total cancer risk ranged from low to moderate risk-based levels. The PAHs sources were attributed to low and high petroleum combustion emissions and stationary sources around the diesel combustion electricity generator in the land-use sites. This study revealed that the land-use activities associated with diesel combustion have contributed a significant amount of Σ16PAHs to the pollution load in the land-use sites with potential for ecological and human exposure risks. |
topic |
pahs soil pollution exposure risks anthropogenic electricity generator diesel combustion niger delta |
url |
https://doi.org/10.2478/auoc-2021-0008 |
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