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Baseline distribution of petroleum hydrocarbon contamination in the marine environment around the coastline of Qatar

Al-Shamary, N; Hasan, H; Leitão, A; Hutchinson, S; Mondal, D; Bayen, S

Baseline distribution of petroleum hydrocarbon contamination in the marine environment around the coastline of Qatar Thumbnail


Authors

N Al-Shamary

H Hasan

A Leitão

D Mondal

S Bayen



Abstract

Levels of organic contaminants (TPHs, PAHs) were simultaneously determined in both abiotic (sediments, seawater) and biotic (Pinctada radiata oysters) samples at four sites along the coastline of Qatar (Arabian Gulf) in 2017-2018. TPHs and PAHs were more frequently detected in oyster tissues than sediment and seawater samples collected from the same areas. While levels of TPHs and PAHs in seawater and sediments were lower than previous local studies and worldwide studies, PAHs levels observed in pearl oyster tissue (25.9- 2240 μg/kg) were relatively higher than in previous studies in Qatar. In general, eight PAHs compounds were detected in oyster tissue, with benzo(a)pyrene displaying the highest concentration. The coast of Qatar could be affected by seasonal patterns of pollutants, where TPHs and PAHs levels increased in winter compared to summer. These results provide key information on the use of the pearl oyster as a bioindicator species and Qatar’s marine environment.

Journal Article Type Article
Acceptance Date Jan 21, 2023
Online Publication Date Feb 9, 2023
Publication Date 2023-03
Deposit Date Feb 2, 2023
Publicly Available Date Feb 10, 2025
Journal Marine Pollution Bulletin
Print ISSN 0025-326X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 188
DOI https://doi.org/10.1016/j.marpolbul.2023.114655
Publisher URL http://www.journals.elsevier.com/marine-pollution-bulletin/