Geoscience Institute, Federal University of Bahia (UFBA), Street Barão de Jeremoabo, s/n, 40170-290 Salvador, BA, Brazil; LEPETRO, Geoscience Institute, Federal University of Bahia (UFBA), Street Barão de Jeremoabo, s/n, 40170-290 Salvador, BA, Brazil.
LEPETRO, Geoscience Institute, Federal University of Bahia (UFBA), Street Barão de Jeremoabo, s/n, 40170-290 Salvador, BA, Brazil.
Mar Pollut Bull. 2020 Nov;160:111597. doi: 10.1016/j.marpolbul.2020.111597. Epub 2020 Sep 4.
The characterization of petroleum or its products spilled in the environment in relation to its source rocks is an important tool to assist in the resolution of issues of environmental impact and legal responsibility since it clarifies the possible region or the producing country of that type of petroleum. This article analyzes the application of analytical techniques for petroleum geochemistry to identify the type and origin of oily material collected from beaches in Northeast Brazil in 2019. Samples of the oily material collected on the beaches in the states of Bahia and Sergipe were analyzed and for comparison purposes, samples of crude oils produced in Brazil, Middle East, Nigeria and Venezuela were also analyzed. The analytical results showed that the oily material that reached the beaches has geochemical characteristics compatible with those of the Venezuelan oil, indicating it was severely weathered or a product made with heavy oil produced.
对环境中石油或其产品与源岩的关系进行特征描述，是协助解决环境影响和法律责任问题的重要工具，因为它可以明确该类型石油的可能来源地区或生产国。本文分析了石油地球化学分析技术在鉴定 2019 年巴西东北部海滩上所收集的油性物质的类型和来源中的应用。分析了在巴伊亚州和塞尔希培州海滩上收集的油性物质样本，并为了进行比较，还分析了在巴西、中东、尼日利亚和委内瑞拉生产的原油样本。分析结果表明，到达海滩的油性物质具有与委内瑞拉石油相匹配的地球化学特征，表明其受到了严重的风化作用，或者是用重油制成的产品。
