Influence of anthropogenic activities and risk assessment on protected mangrove forest using traditional and emerging molecular markers (Ceara coast, northeastern Brazil)

Autor(es):Mostrar menos -

Santos, Felipe R. ^[1] ; Martins, Davi A. ^[2] ; Morais, Pollyana C. V. ^[2] ; Oliveira, Andre H. B. ^[3] ; Gama, Allyne F. ^[2] ; Nascimento, Ronaldo F. ^[3] ; Choi-Lima, Katherine F. ^[4] ; Moreira, Lucas Buruaem ^[4] ; Abessa, Denis M. S. ^[4] ; Nelson, Robert K. ^[5] ; Reddy, Christopher M. ^[5] ; Swarthout, Robert F. ^[5] ; Cavalcante, Rivelino M. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Oceanog, Praca Oceanog 191, BR-05508120 Sao Paulo, SP - Brazil

^[2] Univ Fed Ceara, Inst Ciencias Mar, Ave Abolicao 3207, BR-60165081 Fortaleza, Ceara - Brazil

^[3] Univ Fed Ceara, Dept Quim Analit & Fis Quim, BR-60455760 Fortaleza, Ceara - Brazil

^[4] Sao Paulo State Univ, Ctr Invest Ecotoxicol Aquat & Poluicao NEPEA, UNESP Campus Litoral Paulista, BR-11330900 Sao Vicente, SP - Brazil

^[5] Woods Hole Oceanog Inst, Dept Marine Chem & Geochem, 266 Woods Hole Rd, Woods Hole, MA 02543 - USA

• Tipo de documento: Artigo Científico
• Fonte: Science of The Total Environment; v. 656, p. 877-888, MAR 15 2019.
• Citações Web of Science: 2

Resumo

Anthropogenic molecular markers were used to assess chemicals inputs and ecological risks associated from multiple sources to sediments in one of the largest tropical mangrove forests of South America, with a particular focus on lesser studied compounds resulting from rural activities. Total concentrations ranged from 23.4 to 228.2 ng g(-1) for polycyclic aromatic hydrocarbons (Sigma(PAHs)), 750.4 to 5912.5 ng g(-1) for aliphatic hydrocarbons (Sigma(AHs)), 32.4 to 696.6 ng g(-1) for pesticides (Sigma(pesticides)), 23.1 to 2109.7 ng g(-1) for coprostanol and sterols (Sigma(sterols)), 139.3 to 580.2 ng g(-1) for naturals hormones (Sigma(natural hormones)) and 334.1 to 823.4 ng g(-1) for synthetics hormones (Sigma(synthetic hormones)). The PAHs and AHs used as traditional anthropogenic markers showed a mixture between natural and anthropogenic sources, related mainly to inputs from higher plants, phytoplankton and both, biomass and petroleum combustion. Rural activities linked to agricultural pest control are the predominant source of pesticides, although minor inputs from pesticides used in urban public health campaigns and household activities were also detected. Synthetic hormones levels are two to three orders of magnitude greater than natural hormones levels and no correlations were observed between the main sewage markers and synthetic hormone concentrations, rural activities such as animal husbandry, which use drugs in management, may be the predominant anthropogenic sources of these compounds in the region. Traditional markers failed to detect ecological risks in rural areas, where synthetic substances (e.g. pesticides and hormones) are widely used and introduced in the environment. (C) 2018 Elsevier B.V. All rights reserved. (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