Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Catalonia, Spain.
Environ Int. 2012 Oct 1;46:50-62. doi: 10.1016/j.envint.2012.04.013. Epub 2012 Jun 15.
This study provides a first estimation on the sources, distribution and risk of organic micropollutants (OMPs) in coastal waters from NW Mediterranean Sea. Polycyclic aromatic hydrocarbons, polychlorinated biphenyls, organochlorinated pesticides, polybrominated diphenyl ethers, phthalates and alkylphenols were analyzed by solid phase extraction and gas chromatography coupled to tandem mass spectrometry (SPE-GC-EI-MS/MS). River waters and wastewater treatment plant effluents discharging to the sea were identified as the main sources of OMPs to coastal waters, with an estimated input amount of around of 25,800 g d(-1). The concentration of ΣOMPs in coastal areas ranged from 17.4 to 8442 ng L(-1), and was the highest in port waters, followed by coastal and river mouth seawaters. A summarized overview of the patterns and sources of OMP contamination on the investigated coastal sea waters of NW Mediterranean Sea, as well as of their geographical distribution was obtained by Principal Component Analysis of the complete data set after its adequate pretreatment. Alkylphenols, bisphenol A and phthalates were the main contributors to ΣOMPs and produced an estimated significant pollution risk for fish, algae and the sensitive mysid shrimp organisms in seawater samples. The combination of GC-MS/MS, chemometrics and risk analysis is proven to be useful for a better control and management of OMP discharges.
本研究首次估算了西北地中海沿海海域中有机微污染物（OMPs）的来源、分布和风险。通过固相萃取和气相色谱-串联质谱联用（SPE-GC-EI-MS/MS）分析了多环芳烃、多氯联苯、有机氯农药、多溴二苯醚、邻苯二甲酸酯和烷基酚。研究表明，河水和排入海洋的污水处理厂废水是 OMPs 进入沿海海域的主要来源，估计输入量约为 25800 g d(-1)。沿海地区ΣOMPs 的浓度范围为 17.4 至 8442 ng L(-1)，港口水域的浓度最高，其次是沿海和河口海域。通过对经过适当预处理的完整数据集进行主成分分析，获得了西北地中海沿海海域 OMP 污染模式和来源的综合概述，以及它们的地理分布。烷基酚、双酚 A 和邻苯二甲酸酯是ΣOMPs 的主要贡献者，对海水中的鱼类、藻类和敏感糠虾生物造成了估计的重大污染风险。GC-MS/MS、化学计量学和风险分析的结合被证明可用于更好地控制和管理 OMP 排放。
