Abessa Denis M S, Carr R Scott, Rachid Bauer R F, Sousa Eduinetty C P M, Hortelani Marcos A, Sarkis Jorge E
Campus do Litoral Paulista, Universidade Estadual Paulista, Praça Infante Dom Henrique, s/n, 011330-900, São Vicente, SP, Brazil.
Mar Pollut Bull. 2005 Aug;50(8):875-85. doi: 10.1016/j.marpolbul.2005.02.034. Epub 2005 Apr 2.
The submarine sewage outfall of Santos (SSOS) is situated in the Santos Bay (São Paulo, Brazil) and is potentially a significant source of contaminants to the adjacent marine ecosystem. The present study aimed to assess the influence of SSOS on the sediment toxicity and contamination at Santos Bay. At the disposal site, sediments tended to be finer, organically richer and exhibited higher levels of surfactants and metals, sometimes exceeding the "Threshold Effect Level" values. The SSOS influence was more evident toward the East, where the sediments exhibited higher levels of TOC, total S and metals during the summer 2000 sampling campaign. Sediment toxicity to amphipods was consistently detected in four of the five stations studied. Amphipod survival tended to correlate negatively to Hg, total N and % mud. This work provides evidence that the SSOS discharge affects the quality of sediments from Santos Bay, and that control procedures are warranted.
桑托斯海底污水排放口（SSOS）位于桑托斯湾（巴西圣保罗），有可能成为邻近海洋生态系统污染物的重要来源。本研究旨在评估SSOS对桑托斯湾沉积物毒性和污染的影响。在排放地点，沉积物往往更细，有机物质更丰富，表面活性剂和金属含量更高，有时超过了“阈值效应水平”值。SSOS的影响在东部更为明显，在2000年夏季采样活动期间，那里的沉积物表现出更高的总有机碳（TOC）、总硫和金属含量。在所研究的五个站点中的四个站点，均持续检测到沉积物对双壳类动物具有毒性。双壳类动物的存活率往往与汞、总氮和泥质百分比呈负相关。这项工作证明了SSOS排放会影响桑托斯湾沉积物的质量，因此有必要采取控制措施。
