Polycyclic aromatic hydrocarbons in seawater after the mysterious oil spill of 2019 on the Pernambuco coast, northeast Brazil.

Autor: da S Moreira TC; Grupo de Pesquisa em Petróleo, Energia e Espectrometria de Massas (PEM), Departamento de Química, Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE 52171-900, Brazil., de Oliveira AFB; Grupo de Pesquisa em Petróleo, Energia e Espectrometria de Massas (PEM), Departamento de Química, Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE 52171-900, Brazil., de Lucena PGC; Grupo de Pesquisa em Petróleo, Energia e Espectrometria de Massas (PEM), Departamento de Química, Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE 52171-900, Brazil., do Nascimento ES; Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE 52171-900, Brazil., de Almeida LMF; Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE 52171-900, Brazil., de Araújo-Castro CMV; Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE 52171-900, Brazil., Rojas LAV; Departamento de Oceanografia, Centro de Tecnologia e Geociências, Universidade Federal de Pernambuco (UFPE), Recife, PE 50740-550, Brazil., Yogui GT; Departamento de Oceanografia, Centro de Tecnologia e Geociências, Universidade Federal de Pernambuco (UFPE), Recife, PE 50740-550, Brazil., Zanardi-Lamardo E; Departamento de Oceanografia, Centro de Tecnologia e Geociências, Universidade Federal de Pernambuco (UFPE), Recife, PE 50740-550, Brazil., Santos JM; Grupo de Pesquisa em Petróleo, Energia e Espectrometria de Massas (PEM), Departamento de Química, Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE 52171-900, Brazil. Electronic address: jandyson.machado@ufrpe.br.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Jun; Vol. 203, pp. 116395. Date of Electronic Publication: 2024 May 04.
DOI: 10.1016/j.marpolbul.2024.116395
Abstrakt: In 2019, one of Brazil's most significant environmental disasters occurred, involving an oil spill that directly affected Pernambuco state. Contamination along the coast was evaluated by the quantification of polycyclic aromatic hydrocarbons (PAHs) in fifty seawater samples collected in the summer and winter of 2021. Analysis using fluorescence spectroscopy revealed that for all the samples, levels of dissolved/dispersed petroleum hydrocarbons (DDPHs) were higher than the regional baseline for tropical western shores of the Atlantic Ocean. GC-MS analyses quantified 17 PAHs in the samples, with highest total PAHs concentrations of 234 ng L -1 in summer and 33.3 ng L -1 in winter, which were consistent with the highest risks observed in ecotoxicity assays. The use of diagnostic ratios showed that the coast was impacted by a mixture of PAHs from petrogenic and pyrolytic sources. The results indicated the need for continuous monitoring of the regions affected by the 2019 spill.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Jandyson M Santos reports financial support was provided by Foundation for Support of Science and Technology of Pernambuco State.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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