Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Galicia, Spain.
Arch Environ Contam Toxicol. 2010 Oct;59(3):407-16. doi: 10.1007/s00244-010-9492-7. Epub 2010 Mar 10.
The application of embryo-larval bioassay with the purple sea urchin Paracentrotus lividus and the mussel Mytilus galloprovincialis at 48 hours, and with neonates of the mysid Siriella armata at 96 hours, was used to evaluate the acute toxicities of the following preparations: (1) the shoreline cleaning agent CytoSol; (2) the water-accommodated fraction of CytoSol plus a light crude oil; and (3) the runoff from a pilot-scale treatment with CytoSol of a rocky coastal substrate impregnated with residues from the Prestige oil spill (which occurred on November 19, 2002). The mussel was the most sensitive organism to CytoSol and runoff effects (EC(50) = 8.0 microL/L and 64.3 mL/L, respectively), and the mysid was the least sensitive to the runoff (EC(50) > 200 mL/L). The predicted no-effect environmental concentration (PNEC) was calculated from the no observed-effect concentration of the species most sensitive to the runoff. The predicted environmental concentration (PEC) was estimated from a simple and reasonable dilution model, and the PEC/PNEC ratio was calculated according to the area treated and the values of the variables considered in the model. Implications for the management of the treatment operations are discussed.
采用紫海胆(Paracentrotus lividus)和贻贝(Mytilus galloprovincialis)胚胎-幼体生物测定法，在 48 小时和糠虾(Siriella armata)幼体 96 小时时，评估了以下制剂的急性毒性：(1)岸边清洁剂 CytoSol；(2)CytoSol 的水容纳部分加轻质原油；以及(3)用 CytoSol 处理受污染的多岩石海岸基质的中试规模径流，该基质受 Prestige 号溢油事件(2002 年 11 月 19 日发生)的残留物污染。贻贝对 CytoSol 和径流的影响最敏感(EC50 分别为 8.0 μL/L 和 64.3 mL/L)，而糠虾对径流的影响最不敏感(EC50 > 200 mL/L)。从对径流最敏感的物种的无观察效应浓度(NOEC)中计算出预测无效应环境浓度(PNEC)。根据简单合理的稀释模型估算预测环境浓度(PEC)，并根据处理区域和模型中考虑的变量值计算 PEC/PNEC 比值。讨论了处理操作管理的意义。
