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Article

Bioavailability Assessment of Metals from the Coastal Sediments of Tropical Estuaries Based on Acid-Volatile Sulfide and Simultaneously Extracted Metals

by
Ana Paula de Castro Rodrigues
1,2,
Matheus Marinho Pereira
1,
Aline Campos
3,
Tássia Lins da Silva Quaresma
1,
Rodrigo Pova
1,
Thatianne Castro Vieira
1,4,
Rút Amélia Diaz
1,
Manuel Moreira
1,
Denise Araripe
5,
Christiane do Nascimento Monte
1,6,* and
Wilson Machado
1
1
Program of Geochemistry, Department of Geochemistry, Fluminense Federal University (UFF), Outeiro de São João Batista s/n, Niterói 24020-141, RJ, Brazil
2
Health Science Center, Rio de Janeiro Federal University (UFRJ), Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro 21941-902, RJ, Brazil
3
Integrated Faculties Maria Thereza Oceanography and Marine Biology, Av. Visconde do Rio Branco, 869, São Domingos, Niterói 24210-006, RJ, Brazil
4
Pos-Graduation Program on Oceans and Earth Dynamics, Federal Fluminense University (UFF), Av. Milton Tavares de Souza s/n, Gragoatá, Niterói 24210-340, RJ, Brazil
5
Program of Chemistry, Departament of Chemistry, Fluminense Federal University (UFF), Out. de São João Batista s/n, Niterói 24020-141, RJ, Brazil
6
Geology Department, Federal of Western of Pará (Ufopa), Av. Vera Paz s/n, Salé, Santarém 68040-255, PA, Brazil
*
Author to whom correspondence should be addressed.
Coasts 2023, 3(4), 313-327; https://doi.org/10.3390/coasts3040019
Submission received: 24 July 2023 / Revised: 19 September 2023 / Accepted: 20 October 2023 / Published: 24 October 2023
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Abstract

Bioavailability assessment is important for evaluating the risks to the local biota, and the combined use of several ecological risk indices in eutrophic environments allows the best analysis of the local reality for decision-making. The relationship between acid volatile sulfide (AVS) concentrations and simultaneously extracted metals (SEM) allows us to infer the metal holding capacity of sediment, with the objective of evaluating the potential bioavailability of trace metals (Cd, Cu, Ni, Pb, and Zn) using ecological risk indices, such as the ΣSEM/AVS model and Adverse Effect Index (AEI), in surface sediments from Guanabara Bay and Sepetiba Bay, Brazil. AVS was determined using a colorimetric method and SEM with ICP-OES. In general, almost all sampling in Sepetiba Bay showed ΣSEM/AVS ratio values above 1. However, all results for the ΣSEM/AVS ratio found for the Guanabara Bay sediments were <1 for both estuaries. After normalization by organic carbon content, a possible toxicity risk for biota was found in Sepetiba Bay. However, the AEI in Guanabara Bay was above 1 for all metals in most samples, also indicating a risk to the biota.
Keywords: AVS; ecological risk; adverse effect index; Guanabara Bay; Sepetiba Bay AVS; ecological risk; adverse effect index; Guanabara Bay; Sepetiba Bay

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MDPI and ACS Style

Rodrigues, A.P.d.C.; Pereira, M.M.; Campos, A.; da Silva Quaresma, T.L.; Pova, R.; Vieira, T.C.; Diaz, R.A.; Moreira, M.; Araripe, D.; Monte, C.d.N.; et al. Bioavailability Assessment of Metals from the Coastal Sediments of Tropical Estuaries Based on Acid-Volatile Sulfide and Simultaneously Extracted Metals. Coasts 2023, 3, 313-327. https://doi.org/10.3390/coasts3040019

AMA Style

Rodrigues APdC, Pereira MM, Campos A, da Silva Quaresma TL, Pova R, Vieira TC, Diaz RA, Moreira M, Araripe D, Monte CdN, et al. Bioavailability Assessment of Metals from the Coastal Sediments of Tropical Estuaries Based on Acid-Volatile Sulfide and Simultaneously Extracted Metals. Coasts. 2023; 3(4):313-327. https://doi.org/10.3390/coasts3040019

Chicago/Turabian Style

Rodrigues, Ana Paula de Castro, Matheus Marinho Pereira, Aline Campos, Tássia Lins da Silva Quaresma, Rodrigo Pova, Thatianne Castro Vieira, Rút Amélia Diaz, Manuel Moreira, Denise Araripe, Christiane do Nascimento Monte, and et al. 2023. "Bioavailability Assessment of Metals from the Coastal Sediments of Tropical Estuaries Based on Acid-Volatile Sulfide and Simultaneously Extracted Metals" Coasts 3, no. 4: 313-327. https://doi.org/10.3390/coasts3040019

APA Style

Rodrigues, A. P. d. C., Pereira, M. M., Campos, A., da Silva Quaresma, T. L., Pova, R., Vieira, T. C., Diaz, R. A., Moreira, M., Araripe, D., Monte, C. d. N., & Machado, W. (2023). Bioavailability Assessment of Metals from the Coastal Sediments of Tropical Estuaries Based on Acid-Volatile Sulfide and Simultaneously Extracted Metals. Coasts, 3(4), 313-327. https://doi.org/10.3390/coasts3040019

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