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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472 EISSN: 1735-1472
Vol. 12, No. 2, 2015, pp. 581-594
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Bioline Code: st15053
Full paper language: English
Document type: Research Article
Document available free of charge
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International Journal of Environment Science and Technology, Vol. 12, No. 2, 2015, pp. 581-594
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Indicators of terrestrial biogenic hydrocarbon contamination and linear alkyl benzenes as land-base pollution tracers in marine sediments
Syakti, A.D.; Asia, I.; Kanzari, F.; Umasangad, H.; Lebarillent, S.; Ourself, B.; Ganirer, C.; Malterest, L.; Tenois, Y.; Mille, G. & Doumenq, P.
Abstract
Aliphatics (n-alkanes) and polycyclic aromatic
hydrocarbons (PAHs) were measured in surface sediments
collected from 12 sampling points (P1–P12) of sewage
discharge to the sea from the wastewater treatment plant of
Cortiou (France). Total n-alkanes and PAHs concentrations
ranged from 34 to 2,155 and 696 to 10,700 μg kg-1,
respectively. Some specific hydrocarbon indexes suggested
that terrestrial biogenic inputs are predominant compared
to marine sources and that pyrolytic sources derived from
wood and biomass combustion contribute to PAHs in the
surface sediments. Total linear alkyl benzenes in Cortiou
sediments ranged from 42.9 to 502.3 μg kg-1. Low internal
and external (I/E) isomers ratio (P0) suggests that
inadequately treated sewage is discharged into the marine
environment while some environmental processes might
change I/E ratios during transport seaward (P1–P12). The
high contaminant levels followed by the cumulative concentration
of several compounds may lead to elevated
toxicity levels in the sediments.
Keywords
Organic contaminants; n-Alkanes; Polycyclic aromatic hydrocarbonLinear alkyl benzeness; Environmental monitoring; Wastewater treatment discharge
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