Moret I, Gambaro A, Piazza R, Ferrari S, Manodori L
C.N.R., Istituto per la Dinamica dei Processi Ambientali - Sezione di Venezia, c/o Dipartimento di Scienze Ambientali, Dorsoduro 2137, 30123 Venezia, Italy.
Mar Pollut Bull. 2005 Feb;50(2):167-74. doi: 10.1016/j.marpolbul.2004.10.005. Epub 2004 Nov 5.
The purpose of this study is to evaluate the degree of PCB contamination of Venice lagoon water. The PCB determination was made on the filtrate ("dissolved PCBs") and on the particulate collected on the filters ("particulate PCBs") by continuous liquid-liquid extraction and sonication, respectively, and by HRGC-LRMS analysis. An estimation of the procedural and "working" blanks was also made. Water samples were collected at six sites, selected to represent all the pollution situations present in the lagoon, and at a site in the Adriatic Sea. The range of the total sum ("dissolved plus particulate") of 49 congener concentrations falls between 355 and 1868 pgl(-1); the "dissolved" fraction concentrations (250-792 pgl(-1)) are greater at six sites than that of the "particulate" fraction (105-1273 pgl(-1)). Chemometric analyses suggest that the PCB congener pattern in the Venice Lagoon is different from that in the Adriatic Sea.
本研究的目的是评估威尼斯泻湖水体中多氯联苯（PCB）的污染程度。分别通过连续液-液萃取和超声处理，对滤液（“溶解态多氯联苯”）和滤膜上收集的颗粒物（“颗粒态多氯联苯”）进行多氯联苯测定，并采用高分辨率气相色谱-低分辨质谱（HRGC-LRMS）分析。同时还对分析过程空白和“工作”空白进行了估算。在六个选定的代表泻湖所有污染情况的地点以及亚得里亚海的一个地点采集了水样。49种同系物浓度的总和（“溶解态加颗粒态”）范围在355至1868皮克/升之间；六个地点的“溶解态”组分浓度（250 - 792皮克/升）高于“颗粒态”组分浓度（105 - 1273皮克/升）。化学计量分析表明，威尼斯泻湖中的多氯联苯同系物模式与亚得里亚海不同。
