Baffle Tests Varying Concentrations of Corexit: Enhanced exposure of embryonic fish to oil constituents from DWH as compared to South Louisiana Crude.

The main purpose for developing the current dataset were to determine whether use of Corexit dispersant enhanced in a dose response fashion the exposure of embryonic fish to oil constituents from DWH weathered oil (mousse) as compared to a South Louisiana Crude reference standard. This comparison was performed for freshwater (Zebrafish were the developmental model for which this data was preparative) and select salinities (extrapolative). These data demonstrate that Corexit under the conditions of the baffle test dispersed crude oil into water at only the highest Corexit concentrations (3.0 mg/l, 100 mg/l). At the highest Corexit concentration this amounted to nearly 30%. This was not true for a similar experiment with mousse with few mousse constituents dispersed into water. For treatments at which different salinities were measured only small changes were noted between the different salinities.

本数据集开发的主要目的，在于探究相较于路易斯安那南部原油参考标准品，使用柯塞特（Corexit）分散剂是否会以剂量响应模式，增强胚胎鱼类暴露于深水地平线（Deepwater Horizon, DWH）风化油（油膏，mousse）所含油类成分的程度。本次对比实验覆盖淡水环境（本数据以斑马鱼（Zebrafish）作为发育模型完成制备）与特定盐度梯度（用于外推分析）两类场景。实验数据表明，在挡板试验（baffle test）的条件下，仅当柯塞特分散剂浓度达到最高值（3.0 mg/l、100 mg/l）时，才可将原油分散至水体中，此时的原油分散率接近30%。而针对油膏的类似实验则未出现该现象，几乎无油膏成分被分散至水体中。在设置不同盐度的处理组中，不同盐度仅带来了微小的实验结果变化。