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VOL. 5, ISSUE 1 (2021)
Potential sources and variation of polycyclic aromatics hydrocarbons in selected aquatic media of jetties within Port Harcourt and its environs
Authors
NWEKE Alexander, KPEE Friday, NNA Prince Joe
Abstract
The study considered the sources and variability of poly aromatic hydrocarbons (PAHs) concentrations in crabs and sediments from Iwofe and Borikiri areas of Port Harcourt City, Rivers State. Gas chromatography coupled with flame ionization detector (GCFID was used to evaluate the levels of PAHs in the samples.). The mean concentration of (PAHs) in crab of Iwofe River was 2.8E-5±2.5E-4 mg/kg, and tPAHs for Iwofe was 1.2E-2±1.8E-3 mg/kg and the most dominent PAHs were Fluorene (4.0E-3±1.0E-3 mg/kg), Benzo (a) Pyrene (3.2E-3±2.0E-4 mg/kg), and Benzo (a) Anthracene (1.4E-3±2.0E-4 mg/kg). Borikiri location had tPAHs concentration of 3.3E-2±5.3E-4 mg/kg and Dibenz (a, h) Anthracene (1.5E-2±1.0E-5 mg/kg), Benzo (a) Pyrene (8.2E-3±4.0E-5 mg/kg), and Benzo (a) Anthracene (4.0E-3±2.0E-5 mg/kg) all had elevated concentrations. The mean values of PAHs in sediments was 4.9E-3±3.7E-3 mg/kg. Iwofe location recorded total PAHs of 4.5E-3±5.6E-5 mg/kg, Benzo (a) Pyrene, Pyrene, and Fluorene had the highest concentration with values of 3.2E-3±1.0E-5 mg/kg, 5.0E-4±2.3E-5mg/kg, and 3.0E-4±1.0E-5 mg/kg. Borikiri had total PAHs of 5.3E-3±4.4E-4 mg/kg, Benzo (g,h,i) Perylene, Indeno (1,2,3-cd) Pyrene, and Naphthalene had the highest concentrations of 1.8E-3±1.8E-4 mg/kg, 1.4E-3±1.0E-4 mg/kg, and 7.0E-4±3.0E-6 mg/kg respectively. The sources identification for crab and sediments from both jetties indicated variable sources of PAHs of the study area; combustion, petrogenic and pyrogenic sources. The result indicated that the crab and sediments of the study area have been contaminated with PAHs.
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Pages:31-35
How to cite this article:
NWEKE Alexander, KPEE Friday, NNA Prince Joe "Potential sources and variation of polycyclic aromatics hydrocarbons in selected aquatic media of jetties within Port Harcourt and its environs ". International Journal of Chemical Science, Vol 5, Issue 1, 2021, Pages 31-35
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