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Title: Environmental occurrence, spatial distribution, and source identification of PAHs in surface and groundwater samples of Abou Ali River-North Lebanon
Authors: Jabali, Yasmine 
Iaaly, Amal 
Millet, Maurice
Affiliations: Department of Civil and Environmental Engineering 
Department of Mechanical Engineering 
Keywords: Abou Ali River
Spatial distribution
Surface water
Issue Date: 2021
Part of: Environmental Monitoring and Assessment
Volume: 193
Issue: 11
This paper assesses the concentrations, spatial distribution, compositional patterns, and sources of polycyclic aromatic hydrocarbons (PAHs) in the dissolved aqueous phase along the Abou Ali River course. The 16 priority PAHs, listed by the USEPA, were investigated in surface- and groundwater samples for 2 years starting August 2015 and ending in March 2017. Statistical analysis was done by using the ANOVA test at p < 0.05. The spatial distribution analysis and illustration were done using the ARC GIS software. The total PAHs concentration in surface and groundwater samples varied between not detected to 15.162 ng mL-1 and not detected to 0.635 ng mL-1, respectively. The highest concentration of PAHs in surface water was observed at site S16, downstream of the river. However, the absence of PAHs was noticed at sites S1 and S2 of the upstream. The contamination levels of PAHs were found to be high in surface water samples, and low in groundwater samples. The 5- and 6-ring PAHs were the most abundant species among others in surface water samples, whereas the 3-ring PAHs were the most abundant in groundwater. Pyrogenic inputs deriving from fuel combustion, incineration, and miscellaneous burning were found to be the main PAH sources in surface and groundwater without ignoring the contribution of petrogenic inputs in some areas.
ISSN: 01676369
DOI: 10.1007/s10661-021-09513-0
Open URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Civil and Environmental Engineering
Department of Mechanical Engineering

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