Aix Marseille Univ., University of Toulon, CNRS, IRD, MIO UM 110, Marseille, France; Karadeniz Technical University, Faculty of Marine Science, 61530, Sürmene, Trabzon, Turkey.
Aix Marseille Univ., University of Toulon, CNRS, IRD, MIO UM 110, Marseille, France; Karadeniz Technical University, Institute of Marine Science and Technology, 61080 Trabzon, Turkey.
Sci Total Environ. 2021 Mar 15;760:143412. doi: 10.1016/j.scitotenv.2020.143412. Epub 2020 Nov 7.
Seven phthalate (PAEs) and nine organophosphate esters (OPEs) were measured in surface sediments across the Gulf of Lion (NW Mediterranean Sea) at twelve stations characterized by different anthropogenic signatures. ∑PAEs and ∑OPEs concentrations ranged from 2 to 766 ng/g DW (av. 196 ng/g DW) and from 4 to 227 ng/g DW (av. 54 ng/g DW), respectively. Our analysis of the potential sources of these organic plastic additives in sediments of the Gulf of Lion suggests that the dominant factors affecting their occurrence and environmental distribution are port-based industrial activities and urban pressures. Indeed, the highest ∑PAEs and ∑OPEs concentrations were found close to the ports of Toulon and Marseille (Estaque) and at the sites impacted by the Marseille metropolitan area (i.e. at the outlets of the waste water treatment plant at Cortiou and at the mouth of the Huveaune River). The lowest levels were generally found in protected areas (e.g. Port-Cros) and at sites relatively far from the coast. DEHP was seen to be the most abundant PAE while TDCP, TEHP and TiBP were the most abundant OPEs in the area. Our results also expose the contribution of additives entering the Gulf of Lion via sedimentary material from the Rhône River, with positive correlations between the total organic carbon (TOC) content in the sediment and the ∑PAEs and ∑OPEs concentrations. However, additive concentrations decreased from shore to offshore in the Rhône River discharge area, indicating an efficient dilution of the contaminants accumulated at the river mouth area.
在十二处具有不同人为特征的站中，对来自于利翁湾（西北地中海）的表层沉积物进行了七种邻苯二甲酸酯（PAEs）和九种有机磷酸酯（OPEs）的测量。∑PAEs 和 ∑OPEs 的浓度范围分别为 2 至 766ng/g DW（平均值 196ng/g DW）和 4 至 227ng/g DW（平均值 54ng/g DW）。我们对利翁湾沉积物中这些有机塑料添加剂潜在来源的分析表明，影响其出现和环境分布的主要因素是港口工业活动和城市压力。事实上，∑PAEs 和 ∑OPEs 的最高浓度出现在土伦（Toulon）和马赛（Marseille）附近的港口（埃斯塔克）以及受马赛大都市区影响的地点（即科蒂欧废水处理厂的出水口和于维纳河口）。一般来说，最低浓度出现在受保护地区（如蓬特-克罗斯）和远离海岸的地点。在该地区，DEHP 是最丰富的 PAE，而 TDCP、TEHP 和 TiBP 是最丰富的 OPE。我们的研究结果还揭示了通过罗纳河沉积物进入利翁湾的添加剂的贡献，其中沉积物中的总有机碳（TOC）含量与∑PAEs 和∑OPEs 浓度之间存在正相关。然而，在罗纳河排放区，添加剂浓度从岸到岸逐渐降低，这表明在河口地区积累的污染物得到了有效稀释。
