Al-Shamary Noora, Hassan Hassan, Leitão Alexandra, Hutchinson Simon M, Mondal Debapriya, Bayen Stéphane
Environnemental Science Center, Qatar University, Qatar; School of Science, Engineering and Environment, University of Salford, UK.
Environnemental Science Center, Qatar University, Qatar.
Mar Pollut Bull. 2023 Mar;188:114655. doi: 10.1016/j.marpolbul.2023.114655. Epub 2023 Feb 9.
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.
2017年至2018年期间，在卡塔尔（阿拉伯湾）海岸线沿线的四个地点，对非生物（沉积物、海水）和生物（放射珍珠贝牡蛎）样本中的有机污染物（总石油烃、多环芳烃）水平进行了同步测定。与从同一区域采集的沉积物和海水样本相比，在牡蛎组织中更频繁地检测到总石油烃和多环芳烃。虽然海水和沉积物中总石油烃和多环芳烃的水平低于之前的当地研究和全球研究，但在珍珠牡蛎组织中观察到的多环芳烃水平（25.9 - 2240μg/kg）相对高于卡塔尔之前的研究。一般来说，在牡蛎组织中检测到了八种多环芳烃化合物，其中苯并(a)芘的浓度最高。卡塔尔海岸可能受到污染物季节性模式的影响，与夏季相比，冬季总石油烃和多环芳烃水平有所增加。这些结果为将珍珠牡蛎用作生物指示物种以及卡塔尔海洋环境提供了关键信息。
