Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, P.O box 2713, Doha, Qatar.
Geochemical and Environmental Research Group, Texas A&M University, College Station, TX, United States of America.
Mar Pollut Bull. 2022 Oct;183:114009. doi: 10.1016/j.marpolbul.2022.114009. Epub 2022 Aug 30.
Spatiotemporal concentration patterns for 19 parents and their alkyl homologues were measured in Pinctada radiata from 7 locations in the central Arabian Gulf around Qatar in the winter, spring and summer (2014-2015). The concentrations of PAHs ranged from 20 to 2240 (262 ± 38.0 ng·g dw) with the highest occurrence in the Doha harbor (738.4 ± 197.3 ng·g dw) and the lowest in the west coast of Qatar (48.3 ± 5.8 ng·g dw). Residual PAHs in the oysters were about two times higher in winter than in spring and summer (P < 0.05). PAHs in oysters are dominated by 2 and 3 rings PAHs and their alkyls. Alkylated PAHs (APAHs) comprised >55 % of the ΣPAHs. Statistically significant differences in PAHs profiles among oysters were due in part to differences in lipid contents and shell biometrics. Principal component analysis (PCA) and diagnostic ratios for sources identifications suggested that PAHs accumulations in oysters were due to petrogenic and fuel combustion.
在冬季、春季和夏季（2014-2015 年），在卡塔尔周围阿拉伯湾中部的 7 个地点，从珍珠贝中测量了 19 种亲代及其烷基同系物的时空浓度模式。多环芳烃的浓度范围为 20 至 2240（262 ± 38.0 ng·g dw），多环芳烃浓度最高的是多哈港（738.4 ± 197.3 ng·g dw），最低的是卡塔尔西海岸（48.3 ± 5.8 ng·g dw）。冬季牡蛎中残留的多环芳烃比春季和夏季高约两倍（P < 0.05）。牡蛎中的多环芳烃主要由 2 环和 3 环多环芳烃及其烷基组成。烷基化多环芳烃（APAHs）占ΣPAHs 的>55%。由于脂质含量和贝壳生物计量学的差异，牡蛎中多环芳烃的分布存在统计学上的显著差异。主成分分析（PCA）和来源识别的诊断比表明，牡蛎中多环芳烃的积累是由于石油成因和燃料燃烧造成的。
