Polycyclic aromatic hydrocarbons in coral reefs from Southwestern Atlantic: A seascape approach using tissue and skeleton of the coral Montastraea cavernosa (Cnidaria; Scleractinia).

Autor: Menezes N; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente - INCT, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Centro Interdisciplinar em Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Centro Universitário SENAI-CIMATEC, 41650-110, Salvador, BA, Brazil. Electronic address: menezes.natalia@gmail.com., Nascimento MM; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente - INCT, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Centro Interdisciplinar em Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Centro Universitário SENAI-CIMATEC, 41650-110, Salvador, BA, Brazil., Cruz I; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente - INCT, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Laboratory of Biological Oceanography, Department of Oceanography, Institute of Geosciences, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador 40210-340, Bahia, Brazil., Martinez ST; Centro Universitário SENAI-CIMATEC, 41650-110, Salvador, BA, Brazil., da Rocha GO; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente - INCT, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Centro Interdisciplinar em Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Instituto de Química, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil., Souza Filho JR; Instituto Federal de Educação, Ciência e Tecnologia Baiano, Campus Catu, Departamento de Ciências Humanas, Rua Barão de Camaçari, n° 118, Barão de Camaçari, 48110-000 Catu, Bahia, Brazil., Leão ZMNA; Laboratory of Coral Reefs and Global Changes-RECOR, Institute of Geosciences, Federal University of Bahia (UFBA), Barão de Jeremoabo Street, Ondina, Salvador 40210-340, Bahia, Brazil., de Andrade JB; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente - INCT, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Centro Interdisciplinar em Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, 40170-115 Salvador, BA, Brazil; Centro Universitário SENAI-CIMATEC, 41650-110, Salvador, BA, Brazil.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2024 Nov 20; Vol. 952, pp. 175913. Date of Electronic Publication: 2024 Sep 01.
DOI: 10.1016/j.scitotenv.2024.175913
Abstrakt: Coastal marine ecosystems, such as coral reefs, are severely threatened by climate changes, overexploitation, and marine pollution. Particularly, environmental pollution caused by petroleum-derived substances is poorly studied in coral reefs in tropical developing countries, with a total absence of data about these contaminants in some regions. In this work, we determined the levels of conventional and unconventional PAHs in the tissue and skeleton of the coral Montastraea cavernosa in a seascape scale of the Southwest Atlantic. We sampled in 12 coral reefs adjacent to the coast along approximately 200 km. We found 14 PAHs, 2 Oxy-PAHs, and 15 Nitro-PAHs in the samples, and among them, benzo[a]pyrene, chrysene, benzo[a]anthracene, benzo[k]fluoranthene, indeno[1,2,3-c,d]pyrene and dibenz[a,h]anthracene, which are mutagenic, teratogenic and carcinogenic substances. Skeletons presented predominantly lower quantities of ∑PAHs than the respective tissue, except for the skeletons from one reef severely impacted by oil spills. The ∑PAHs levels were lower in a bay near an urbanized region than in open sea reefs. Diagnostic ratios indicate mixogenic sources, with the predominance of petrogenic origin. Our study provides the first occurrence of PAHs, Nitro-PAHs, and Oxy-PAHs distribution in corals from the Southwest Atlantic Ocean, and we expect that these data will help to evaluate any future impacts and management of this ecosystem.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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