Department of Environmental Sciences, Informatics and Statistics (DAIS), Ca' Foscari University of Venice, Via Torino 155, 30172 Venezia-Mestre, Venice, Italy.
Institute for the Dynamics of Environmental Processes (IDPA-CNR), Via Torino 155, 30172 Venezia-Mestre, Venice, Italy.
Sci Total Environ. 2018 Sep 1;634:983-989. doi: 10.1016/j.scitotenv.2018.04.080. Epub 2018 Apr 11.
The Mediterranean Sea is highly influenced by several anthropic pressures, including different kinds of organic pollutants. Fragrance Materials (FMs) and Polycyclic Aromatic Hydrocarbons (PAHs) were investigated in the surface seawater of the Sicily Channel in offshore and coastal areas. Total concentrations of FMs and PAHs resulted respectively up to 112ngL and 43ngL, with similar distributions of both classes of analytes. Low values were detected in some coastal samples, due to the upwelling of deep and unpolluted waters, while the presence of gyres probably accumulates contaminants in offshore areas. Confirming previous works, the allergenic and oestrogenic Salicylates generally resulted the most abundant FMs and diagnostic ratios indicated combustion processes as the sources of PAHs. The coupling of the well-known PAHs with a new class of Personal Care Products (PCPs) helped the identification of the major environmental drivers: the results highlighted the role of mesoscale hydrodynamics and suggested long-range atmospheric transport as key factors. The first detection of the selected FMs in open sea areas supports the hypothesis of their environmental persistence.
地中海受多种人为压力影响，包括各种有机污染物。本研究调查了西西里海峡近海和沿海地区表层海水中的香料（Fragrance Materials，FMs）和多环芳烃（Polycyclic Aromatic Hydrocarbons，PAHs）。FMs 和 PAHs 的总浓度分别高达 112ng/L 和 43ng/L，两类分析物的分布相似。由于深层清洁水的上涌，一些沿海样本中的浓度较低，而旋流的存在可能会在近海地区积累污染物。与先前的研究一致，致敏性和雌激素性的水杨酸酯通常是最丰富的 FMs，诊断比值表明燃烧过程是 PAHs 的来源。众所周知的 PAHs 与一类新的个人护理产品（Personal Care Products，PCPs）的结合有助于确定主要的环境驱动因素：结果突出了中尺度水动力的作用，并表明长程大气输送是关键因素。在所研究的开阔海域中首次检测到所选 FMs，支持了它们在环境中持久性的假设。
