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首页> 外文期刊>Cold regions science and technology >Distribution of water soluble components from Arctic marine oil spills - A combined laboratory and field study
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Distribution of water soluble components from Arctic marine oil spills - A combined laboratory and field study

机译：北极海洋溢油中水溶性成分的分布-结合实验室和现场研究

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摘要

Field experiments dealing with oil encapsulated in ice were performed to study the dissolution of water soluble components (WSC) through first-year sea ice. Six oils (five crude oils and a heavy fuel oil) were frozen into sea ice in February. Oil/ice samples were analyzed and migration of WSC from the oil into the ice was quantified during the 112 day (16 week) experiment. The WSC content in the ice decreased with ice depth, from the upper ice surface to the ice-seawater interface, and a concentration gradient as a function of time was observed. Although the concentrations were low in the bottom ice core (2 to 16 ppb), the exposure time was long. These results indicate that the ice biota could be exposed to toxic WSC in the bottommost centimeters of the ice and in the brine channels, and this could cause potentially toxic oil components to enter the Arctic marine food web. In addition, water accommodated fractions in seawater were generated in the laboratory according to the CROSERF procedure. The distribution of WSC in the field samples was similar to what was observed in the laboratory experiments, confirming that there is a transport of WSC from the oil through the brine channels in the ice to the underlying water.
机译：进行了处理包裹在冰中的油的现场实验，以研究水溶性成分（WSC）通过第一年海冰的溶解。二月份，六种油（五种原油和重质燃料油）被冷冻成海冰。分析了油/冰样品，并在112天（16周）实验中定量了WSC从油到冰的迁移。从上层冰面到冰-海水界面，冰中的WSC含量随冰深的增加而降低，并且观察到浓度梯度随时间变化。尽管底部冰芯中的浓度较低（2至16 ppb），但暴露时间较长。这些结果表明，冰的生物区系可能在冰的最底下厘米和盐水通道中暴露于有毒的WSC中，这可能导致潜在有毒的油成分进入北极海洋食物网。另外，根据CROSERF程序，在实验室中产生了海水中的水容纳馏分。 WSC在野外样品中的分布与实验室实验中观察到的相似，这证实了WSC从油中通过冰中的盐水通道到下层水的传输。

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