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Garcia CAB, Monteiro ASC, da Costa SSL, de Macedo Arguelho MDLP, Araújo RGO, Carneiro MER, do Patrocínio Hora Alves J. Geochemistry of trace metals in surface sediments from the continental slope of the states of Sergipe and Alagoas, Northeastern Brazil. Mar Pollut Bull 2023; 186:114472. [PMID: 36549239 DOI: 10.1016/j.marpolbul.2022.114472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 11/30/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Geochemical analyses were used to determine the origin and identify the main factors that lead to the metal trace distribution on the surface sediments from the continental slope of Sergipe in Brazil. Sediment samples were collected during the dry and rainy periods, from 36 sampling points distributed at water depths from 400 to 3000 m. In general, no effect of seasonality was observed on the metal concentrations and no significant differences were observed between the depth ranges. The correlation analysis indicated the continental origin as the most predominant, followed by authigenic deposition. Anthropogenic enrichment was not noted, nor was the possibility of adverse aquatic biota effects. The results made it possible to understand the contribution of rivers in the transport and transfer of particulate matter to the coastal region, in addition to providing new information on the content of trace metals in tropical Atlantic sediments.
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Affiliation(s)
- Carlos Alexandre Borges Garcia
- Postgraduate Program in Water Resources and Department of Chemistry, Federal University of Sergipe (UFS), Campus São Cristóvão, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil.
| | - Adnívia Santos Costa Monteiro
- Postgraduate Program in Water Resources, Federal University of Sergipe (UFS), Campus São Cristóvão, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil.
| | - Silvânio Silvério Lopes da Costa
- Postgraduate Program in Water Resources and Department of Chemistry, Federal University of Sergipe (UFS), Campus São Cristóvão, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
| | | | - Rennan Geovanny Oliveira Araújo
- Institute of Chemistry, Federal University of Bahia (UFBA), R. Barão de Jeremoabo, 147, Ondina, 40170-115 Salvador, BA, Brazil
| | - Maria Eulália Rocha Carneiro
- Management of Environmental Assessment and Monitoring, Leopoldo Américo Miguez de Mello Research Center (CENPES), Rio de Janeiro, RJ, Brazil
| | - José do Patrocínio Hora Alves
- Postgraduate Program in Water Resources, Federal University of Sergipe (UFS), Campus São Cristóvão, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil
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Medeiros RLDS, Souza SO, Araújo RGO, da Silva DR, Maranhão TDA. Chlorine determination via MgCl molecule in environmental samples using high resolution continuum source graphite furnace molecular absorption spectrometry. Talanta 2018; 176:227-233. [DOI: 10.1016/j.talanta.2017.08.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 07/08/2017] [Accepted: 08/07/2017] [Indexed: 10/19/2022]
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