巴西东北海岸神秘的石油泄漏:追踪近海海水和改进船舶设施的需要

IF 1 4区 地球科学 Q3 MARINE & FRESHWATER BIOLOGY
R. Carreira, Eliete Zanardi-Lamardo, C. Massone, M. Araujo, P. Nobre, G. T. Yogui
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引用次数: 0

摘要

2019年11月15日至12月18日,R/V Vital de Oliveira号在塞埃尔州和巴伊亚州之间的59个站点进行了一次科学巡航,收集了近海海水样本。目的是确定可能与到达巴西东北海岸的神秘石油泄漏有关的碳氢化合物水平。脂肪烃(AHs, 0.79 μ g L -1)和多环芳烃(PAHs, 5.39 ng L -1)的中位数浓度没有表明原油污染,与之前在巴西大陆边缘其他地区发现的基线水平相当。两组碳氢化合物的详细组成表明,一些样品在采样和/或船上处理过程中受到污染。本文提供的数据集强调了追踪分布在巨大海洋区域的小油斑的困难,更重要的是,需要改进用于收集海水样本进行微量有机分析的国家研究船的协议。摘要
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The mysterious oil spill in the northeastern coast of Brazil: tracking offshore seawater and the need for improved vessel facilities
A scientific cruise between November 15 and December 18, 2019 aboard R/V Vital de Oliveira collected offshore seawater samples at 59 stations between the states of Ceará and Bahia. The objective was to identify hydrocarbon levels potentially associated with the mysterious oil spill that reached the northeastern coast of Brazil. Median concentrations of aliphatic hydrocarbons (AHs, 0.79 µg L -1 ) and polycyclic aromatic hydrocarbons (PAHs, 5.39 ng L -1 ) do not indicate contamination by crude oil and are comparable to baseline levels previously found in other areas of the Brazilian continental margin. The detailed composition of both groups of hydrocarbons revealed that some samples were contaminated during sampling and/or handling on-board. The data set presented herein highlights the diffculty in tracking small oil patches spread over a huge ocean area and, more importantly, the need for improving protocols of national research vessels used to collect seawater samples for trace organic analyses. Abstract
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来源期刊
CiteScore
1.60
自引率
12.50%
发文量
21
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