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首页> 外文会议>Proceedings of the Twenty-eighth Arctic and Marine Oilspill Program(AMOP) Technical Seminar vol.1 >Oil Spill Aftermath: Temporal Evaluation of Hydrocarbon Sources in Guanabara Bay, Brazil
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Oil Spill Aftermath: Temporal Evaluation of Hydrocarbon Sources in Guanabara Bay, Brazil

机译：溢油后果：巴西瓜纳巴拉湾的碳氢化合物来源时间评估

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摘要

Guanabara Bay is located in a complex urban area of Rio de Janeiro, Brazil and the anthropogenic processes of introduction of polycyclic aromatic hydrocarbons (PAH) may be from chronic and acute events such as the extensive industrial and domestic waste discharges, indirect atmospheric deposition of incomplete fuel oil combustion, direct urban runoff, oil released from ships and accidental oil spills. On 18 January 2000, about 1,300 m~3 of marine fuel oil were released into the Guanabara Bay as a consequence of a pipeline rupture at the Duque de Caxias Refinery. The main portion of the oil, transported by tidal currents and wind, spread over the water and reached islands and shorelines situated mainly at the north and northeast part of the bay.rnThis paper summarizes the results of the 16 EPA priority PAH and their alkylated homologues from 21 sediment samples collected in the bay in two surveys. The first campaign was carried out about 10 days after the oil spill accident in January 2000, immediately after the cleanup efforts and the second, three years later. It was observed a higher PAH concentration of the samples in 2000 as a result of both petrogenic and pyrolytic contribution to the sediments. The hydrocarbon sources identification have been done by using PAH indexes of the samples studied and principal component analysis (PCA), indicating a clear pattern of petrogenic and pyrolytic introduction in the Guanabara Bay sediments for both campaigns.
机译：瓜纳巴拉湾位于巴西里约热内卢的一个复杂市区，人为引入多环芳烃的过程可能来自慢性和急性事件，例如广泛的工业和家庭废物排放，间接的不完全大气沉积燃油燃烧，城市直接径流，船舶释放的石油和意外漏油。 2000年1月18日，由于杜克·德·卡克夏斯（Duque de Caxias）炼油厂的管道破裂，大约1300 m〜3的船用燃料被释放到瓜纳巴拉湾。石油的主要部分是由潮流和风传播的，它们散布在水面上，并到达主要位于海湾北部和东北部的岛屿和海岸线。rn本文总结了16种EPA优先PAH及其烷基化同系物的结果。在两次调查中从海湾中收集的21个沉积物样本中提取。第一次活动是在2000年1月漏油事故发生后约10天，即在清理工作之后立即进行的，第二次是三年后。据观察，由于成岩作用和热解作用对沉积物的影响，2000年样品的PAH浓度更高。通过使用所研究样品的PAH指数和主成分分析（PCA）进行了烃源识别，这表明两次活动都在瓜纳巴拉湾沉积物中形成了明显的岩石成因和热解作用。

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