Department of Environmental Sciences, Faculty of Science, Alexandria University, Moharrem Bek, Alexandria 21511, Egypt.
Mar Pollut Bull. 2011 Sep;62(9):1969-78. doi: 10.1016/j.marpolbul.2011.06.024. Epub 2011 Jul 20.
To assess the contamination of polycyclic aromatic hydrocarbons (PAHs) in the Mediterranean coastal environment of Egypt, 26 sediment samples from the coastline, harbours, estuaries and coastal lakes were collected and analyzed. The sediment PAH concentrations of thirty-nine 2-6 ring PAHs ranged from 13.5 to 22,600 ng/g. PAH profiles varied according to the nature of the site and its proximity to sources. Industrialized and urbanized region showed high level of PAHs contamination. In general, the contamination levels of PAHs were similar to those observed in contaminated and slightly contaminated sediments of the Mediterranean Sea. Molecular indices based on ratios of selected PAH concentrations were used to differentiate PAHs from pyrogenic and petrogenic and mixed origins. Good correlations were observed between the petrogenic index, MP/P, A-PAHs/P-PAHs and HMW/LMW. Finally, PAH levels in sediments were compared with Sediments Quality Guidelines (ERM-ERL) for evaluation of probable toxic effects on organism.
为了评估埃及地中海沿海环境中多环芳烃 (PAHs) 的污染情况，采集了来自海岸线、港口、河口和沿海湖泊的 26 个沉积物样本并进行了分析。39 种 2-6 环 PAHs 的沉积物 PAH 浓度范围为 13.5 至 22,600ng/g。PAH 分布特征因采样点的性质及其与污染源的距离而异。工业化和城市化地区显示出高浓度的 PAHs 污染。总的来说，PAHs 的污染水平与地中海污染和轻度污染沉积物中的观察结果相似。基于选定 PAH 浓度比值的分子指标用于区分源自热成因和源自石油成因以及混合成因的 PAHs。在石油成因指数、MP/P、A-PAHs/P-PAHs 和 HMW/LMW 之间观察到了良好的相关性。最后，将沉积物中的 PAH 水平与沉积物质量指南 (ERM-ERL) 进行了比较，以评估对生物体可能产生的毒性影响。
