Unraveling sources of hydrocarbons in subtropical estuaries with distinct degrees of protection in the Southwestern Atlantic Ocean, Brazil

Autor(es)

Martins, Cesar C. ; Moreira, Lucas Buruaem ; Sutilli, Marina ; Abessa, Denis Moledo de Souza

• Tipo de documento: Artigo Científico
• Fonte: Marine Pollution Bulletin; v. 195, p. 10-pg., 2023-09-22.

Resumo

Sedimentary aliphatic hydrocarbons and polycyclic aromatic hydrocarbons (PAHs) were studied in subtropical estuaries with distinct degrees of legal protection, located in the Southwestern Atlantic Ocean, Sa similar to o Paulo State, Brazil. A multivariate approach was adopted, using the Hierarchical cluster analysis followed by the Principal Matrix Factorization analysis to support the hydrocarbons sources findings using diagnostic ratios. In general, the sites with the highest values of hydrocarbons were in the vicinity of well-urbanized cities, where sewage discharge, harbor and industrial activities take place. Pyrolitic PAHs were the predominant source of PAHs in the sites. The region can be considered not highly contaminated by hydrocarbons; however, specific sites under local anthropogenic impact from sewage and/or urban drainage, presented relatively high hydrocarbons levels. These findings highlight the importance of sources identification as reliable approach to be included in the management plan of protected areas under the inputs of several vectors of contamination. (AU)

• Processo FAPESP: 13/15482-0 - Estabelecimento de valores de referência sítio-específicos para concentrações de contaminantes em sedimentos do litoral do Estado de São Paulo: bases científicas para a criação de uma legislação no âmbito nacional
• Beneficiário: Lucas Buruaem Moreira
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 20/00068-8 - Análise global do transcriptoma de organismos bentônicos usados como modelos para caracterização de efeitos tóxicos de sedimentos marinhos contaminados
• Beneficiário: Lucas Buruaem Moreira
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Jovens Pesquisadores
• Processo FAPESP: 21/08471-9 - Análise global do transcriptoma de organismos bentônicos usados como modelos para caracterização de efeitos tóxicos de sedimentos marinhos contaminados
• Beneficiário: Lucas Buruaem Moreira
• Modalidade de apoio: Bolsas no Brasil - Programa BIOTA - Jovens Pesquisadores