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Oil impact on the environment and aquatic organisms on the coasts of the states of Alagoas and Sergipe, Brazil - A preliminary evaluation

2021; Elsevier BV; Volume: 171; Linguagem: Inglês

10.1016/j.marpolbul.2021.112723

1879-3363

Emerson Carlos Soares, Mozart Daltro Bispo, Vivian Costa Vasconcelos, João Inácio Soletti, Sandra Helena Vieira de Carvalho, Maria Janaína de Oliveira, Mayara Costa dos Santos, Emerson dos Santos Freire, Aryanna Sany Pinto Nogueira, Francisco A.S. Cunha, Rafael Donizete Dutra Sandes, Raquel Anne Ribeiro dos Santos, Maria Terezinha Santos Leite Neta, Narendra Narain, Carlos Alexandre Borges Garcia, Silvânio Silvério Lopes da Costa, Josué Carinhanha Caldas Santos,

Water Quality and Pollution Assessment

The oil spill off the coast of the Brazilian Northeast region is one of the most significant global events regarding contamination and environmental impact in recent years. This work evaluates the effects of oil spills on the Northeast coasts between Alagoas and Sergipe states from October 2019 to January 2020. Analysis of some sampling points of seawater revealed the presence of Hg, Cd, Pb, and Cu in levels above the maximum concentration limits established by the Brazilian legislation. For water quality parameters, phosphorus, nitrite, and turbidity showed statistically different values. However, the chromatographic profiles of oil obtained from different beaches were quite similar. Seawater, fishes, and massunins (bivalve) presented the main polycyclic aromatic hydrocarbons: naphthalene, phenanthrene, fluoranthene, fluorene, and acenaphthalene. Therefore, the concentration of organic and inorganic contaminants determined in different environmental locations served as a subsidy to assess the effect of the preliminary oil spill on the Brazilian coast.