• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Proceedings of the Twenty-eighth Arctic and Marine Oilspill Program(AMOP) Technical Seminar vol.1 >Dissolution of Water Soluble Components from Oil Spills Encapsulated in Ice
【24h】

Dissolution of Water Soluble Components from Oil Spills Encapsulated in Ice

机译：溶于冰的溢油中水溶性成分的溶解

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Field work with oil encapsulated in ice was performed to study the dissolution of water soluble components. Six oil types were frozen into fjord ice early in February, 2004. Ice cores with oil were sampled every third week until June. Oil/ice samples were analyzed and migration of water soluble components from the oil into the ice was quantified. In addition, water accommodated fractions of the same oils in seawater were generated in the laboratory according to a procedure established by CROSERF. The distribution and concentration of water soluble components in the field samples were compared with data for the same oil types obtained in the laboratory experiments. The distribution of components in the field was similar as observed in the laboratory, but the field concentrations were lower. The results from the field experiments show that the concentration of the water soluble components in the ice is decreasing with ice depth. A concentration gradient as a function of time was also observed, indicating that there has been a migration of water soluble components through brine channels in the ice to the underlying water. The concentration of water soluble components in the bottom 20 cm ice core was reduced from 30 ppb to 6 ppb in the experimental period. Although the concentrations were low, the exposure time was long (nearly four months). This might indicate that the ice fauna could be exposed to a substantial dose of toxic water soluble components.
机译：使用包裹在冰中的油进行了现场工作，以研究水溶性成分的溶解情况。 2004年2月上旬，六种类型的油被冷冻到峡湾冰块中。每隔三周对含油的冰芯进行采样，直到六月。分析了油/冰样品，并对水溶性成分从油到冰中的迁移进行了定量。此外，按照CROSERF建立的程序，在实验室中产生了海水中含油量相同的油馏分。将田间样品中水溶性成分的分布和浓度与在实验室实验中获得的相同油类类型的数据进行了比较。野外成分的分布与实验室观察到的相似，但野外浓度较低。野外实验的结果表明，冰中水溶性成分的浓度随冰深的增加而降低。还观察到浓度梯度随时间变化，表明水溶性成分已通过冰中的盐水通道迁移至下层水。在实验期间，底部20 cm冰芯中水溶性成分的浓度从30 ppb降至6 ppb。尽管浓度较低，但暴露时间较长（将近四个月）。这可能表明冰上的动物可能会接触到大量有毒的水溶性成分。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号