Barataria Bay 2011 Oil Composition Aliphatics

One and a half years after the Deepwater Horizon (DWH) oil spill a set of subtidal and intertidal marsh sediment cores were collected in Barataria Bay, Louisiana an area known to be impacted by the spill. These cores were analyzed to determine the concentration and if the source of the hydrocarbon was the DWH oil spill based on chemical fingerprinting. An archived core, collected before the DWH oil spill from the same area, was also analyzed to assess the background hydrocarbon composition of the area. In addition pre-spill concentrations were assessed based on deeper core sections. The analyses included aliphatic hydrocarbon, polycyclic aromatic hydrocarbons (PAHs), biomarker and stable carbon isotope data. The overall objective was to see if sediments were contaminated with DWH oil, how much and how these concentrations compared to concentrations in this area before the DWH oil spill. This dataset includes aliphatic hydrocarbon data; related datasets can be found in GRIIDC datasets R1.x137.000:0013-0016.深水地平线（Deepwater Horizon，DWH）漏油事件发生一年半后，研究人员在受该事件影响的路易斯安那州巴拉塔里亚湾采集了一套潮下带与潮间带沼泽沉积物岩芯。本研究通过化学指纹图谱法对这批岩芯展开分析，以测定其中烃类物质的浓度，并溯源其是否来自DWH漏油事件。同时，研究人员还对该区域漏油事件前采集并存档的一枚岩芯进行了分析，以评估该区域烃类物质的本底组成；此外，还借助岩芯深部层位确定了该区域漏油事件前的烃类浓度基准。本次分析涵盖脂肪烃、多环芳烃（PAHs）、生物标志物以及稳定碳同位素数据。本研究的整体目标为明确沉积物是否受到DWH原油污染、污染程度如何，并将实测污染浓度与该区域漏油事件前的本底浓度进行对比。本数据集包含脂肪烃相关数据；相关数据集可在GRIIDC数据集R1.x137.000:0013-0016中获取。