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Lourenço R, Cesar R, Koifman G, Teixeira M, Santos D, Polivanov H, Alexandre K, Carneiro M, da Silva LID, Pereira MMSC, Castilhos Z. Land disposal of dredged sediments from an urbanized tropical lagoon: toxicity to soil fauna. ECOTOXICOLOGY (LONDON, ENGLAND) 2024:10.1007/s10646-024-02757-9. [PMID: 38733499 DOI: 10.1007/s10646-024-02757-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/30/2024] [Indexed: 05/13/2024]
Abstract
Urban tropical lagoons are commonly impacted by silting, domestic sewage and industrial wastes and the dredging of their sediments is often required to minimize environmental impacts. However, the ecological implications of land disposal of dredged sediments are still poorly investigated in the tropics. Aiming to contribute to filling this gap, an ecotoxicological evaluation was conducted with dredged sediments from Tijuca Lagoon (Rio de Janeiro, Brazil) using different lines of evidence, including soil and sediment characterization, metal determination, and acute and avoidance bioassays with Eisenia andrei. Two different dredged sediment samples, a sandy sediment and another muddy one, were obtained in two distinct and spatially representative sectors of the Tijuca Lagoon. The sediments were mixed with an artificial soil, Ferralsol and Spodosol to obtain doses between 0 (pure soil) and 12%. The sediment dose that caused mortality (LC50) or avoidance responses (EC50) to 50% of the organisms was estimated through PriProbit analysis. Metal concentrations and toxicity levels were higher in the muddy sediment (artificial soil LC50 = 3.84%; Ferralsol LC50 = 4.58%; Spodosol LC50 = 2.85%) compared to the sandy one (artificial soil LC50 = 10.94%; Ferralsol LC50 = 14.36%; Spodosol LC50 = 10.38%), since fine grains tend to adsorb more organic matter and contaminants. Mortality and avoidance responses were the highest in Spodosol due to its extremely sandy texture (98% of sand). Metal concentrations in surviving earthworms were generally low, except sodium whose bioaccumulation was high. Finally, the toxicity is probably linked to marine salts, and the earthworms seem to accumulate water in excess to maintain osmotic equilibrium, increasing their biomass.
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Affiliation(s)
- Rodrigo Lourenço
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Ricardo Cesar
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil.
- Department of Geology, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil.
| | - Gustavo Koifman
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Department of Geochemistry, Fluminense Federal University, UFF, Outeiro São João Baptista, s/n. Centro, Niterói, RJ, Brazil
| | - Matheus Teixeira
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Department of Geochemistry, Fluminense Federal University, UFF, Outeiro São João Baptista, s/n. Centro, Niterói, RJ, Brazil
| | - Domynique Santos
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Helena Polivanov
- Department of Geology, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Katia Alexandre
- Centre for Mineral Technology, CETEM/MCTI, Av. Pedro Calmon, 900. Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Manuel Carneiro
- Centre for Mineral Technology, CETEM/MCTI, Av. Pedro Calmon, 900. Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Lilian Irene Dias da Silva
- Centre for Mineral Technology, CETEM/MCTI, Av. Pedro Calmon, 900. Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | | | - Zuleica Castilhos
- Centre for Mineral Technology, CETEM/MCTI, Av. Pedro Calmon, 900. Cidade Universitária, Rio de Janeiro, RJ, Brazil
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do N Monte C, de Castro Rodrigues AP, Silva MC, Ferreira LJS, Monte G, Silveira CS, Cordeiro RC, Machado W. Assessment of eutrophication from phosphorus remobilization after resuspension of coastal sediments from an urban tropical estuary. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:65500-65511. [PMID: 37084060 DOI: 10.1007/s11356-023-27099-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
Dredging activities cause sediment resuspension, which can change the bioavailability of nutrients such as phosphorus (P) in aquatic ecosystems due to remobilization. This study evaluated the remobilization of P in the solid and dissolved phase before and after sediment resuspension in the Meriti and Iguaçu River estuaries and the Rio de Janeiro and Niterói harbor in Guanabara Bay (Rio de Janeiro, Brazil). Three water and sediment samples were collected at each point. Dissolved phosphorus (DP), total phosphorus (TP), organic phosphorus (OP), and inorganic phosphorus (IP) were analyzed before and after resuspension. Resuspension directly impacted the fine-grained samples, causing the release of P into the water column after resuspension, increasing eutrophication of the estuary and risk to biota. The phosphorus enrichment index (PEI) was calculated in the four areas, and in all areas, the index was above 1, which means high ecological risk. The area with sandy granulometry and a lower percentage of organic matter showed an increase in the index after resuspension. The resuspension may impact the increase of eutrophication in some areas, due to the remobilization of the sediment and the adsorbed contaminants.
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Affiliation(s)
- Christiane do N Monte
- Geochemistry Department, Universidade Federal Fluminense, Niterói, RJ, Brazil.
- Geology Department, Universidade Federal Do Oeste Do Pará, Santarém, PA, Brazil.
| | - Ana Paula de Castro Rodrigues
- Geochemistry Department, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Marine Biology Department, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, Rio de Janeiro, RJ, Brazil
| | - Matheus Cavalcante Silva
- Postgraduate Program in Dam Engineering and Environmental Management, Universidade Federal Do Pará, Tucuruí, PA, Brazil
| | - Luana J S Ferreira
- Geochemistry Department, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Gustavo Monte
- Geochemistry Department, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | | | | | - Wilson Machado
- Geochemistry Department, Universidade Federal Fluminense, Niterói, RJ, Brazil
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Teixeira M, Cesar R, Abessa D, Siqueira C, Lourenço R, Vezzone M, Fernandes Y, Koifman G, Perina FC, Meigikos Dos Anjos R, Polivanov H, Castilhos Z. Ecological risk assessment of metal and hydrocarbon pollution in sediments from an urban tropical estuary: Tijuca lagoon (Rio de Janeiro, Brazil). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:184-200. [PMID: 35896874 DOI: 10.1007/s11356-022-22214-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Urban tropical lagoons are often impacted by eutrophication, metal, and polycyclic aromatic hydrocarbon (PAH) contamination, but the toxicity of their bottom sediments is still poorly investigated in South America. Aiming to contribute to filling this gap, a sediment quality assessment was conducted in the Tijuca Lagoon (Rio de Janeiro, Brazil) using different lines of evidence (LOEs) including sediment characterization, determination of metals and PAHs, and acute toxicity testing with burrowing amphipods (Tiburonella viscana). Mud and organic matter contents played a crucial role in contaminant distribution along the lagoon. The concentrations of PAH were generally low (mean ΣPAH = 795.42 ± 1146.2 ng/g; n = 23), but a contamination hotspot of light PAH compounds was identified. Such PAHs were mainly pyrolytic, probably related to the deposition of atmospheric pollution, although petrogenic compounds also occur in the lagoon. The data indicated the occurrence of geochemical anomalies of Zn, Cu, Pb, and Hg (mean values = 176.9 ± 91.6, 45.1 ± 21.3, 35.2 ± 15.0, 0.1442 ± 0.0893 mg/kg, respectively; n = 23), probably associated with industrial wastes, garbage deposition, urban runoff, and domestic sewage contributions. The mortality of T. viscana was significant for more than 85% of the samples (mean mortality = 70.3 ± 26.0%; n = 23), but it was not significantly correlated with PAH and metal concentrations. On the other side, domestic sewage contributions and eutrophication seem to play a relevant role in sediment toxicity. Actually, the toxicity observed in the tests seems to be due to the simultaneous influence of multiple toxicants and their combined effects on the organisms. Such stressors may include not only metals, PAH, and eutrophication but also chemicals not evaluated in this study, such as hormones, pharmaceuticals and personal care compounds, perfluorocompounds, detergents, and others.
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Affiliation(s)
- Matheus Teixeira
- Department of Geology, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil.
| | - Ricardo Cesar
- Department of Geology, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Denis Abessa
- São Paulo State University, UNESP, São Vicente, SP, Brazil
| | - Celeste Siqueira
- Department of Analytical Chemistry, Chemistry Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 179 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Rodrigo Lourenço
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Mariana Vezzone
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Department of Biology, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193, Aveiro, UA, Portugal
| | - Yan Fernandes
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Gustavo Koifman
- Department of Geography, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Fernando Cesar Perina
- São Paulo State University, UNESP, São Vicente, SP, Brazil
- Department of Biology, Centre for Environmental and Marine Studies, University of Aveiro, 3810-193, Aveiro, UA, Portugal
| | - Roberto Meigikos Dos Anjos
- Physics Institute, Federal Fluminense University, UFF, Av. Litorânea, s/n - Praia Vermelha, Niterói, RJ, Brazil
| | - Helena Polivanov
- Department of Geology, CCMN-Geosciences Institute, Federal University of Rio de Janeiro, UFRJ, Av. Athos da Silveira Ramos, 274 - Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Zuleica Castilhos
- Centre for Mineral Technology, CETEM/MCTI, Av. Pedro Calmon, 900, Cidade Universitária, Rio de Janeiro, RJ, Brazil
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Monte CN, Rodrigues APC, Galvão PMA, Pontes GC, Malm O, Wasserman JC, Machado W. Mercury methylation upon coastal sediment resuspension: a worst-case approach under dark conditions. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:805. [PMID: 36123414 DOI: 10.1007/s10661-022-10485-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 09/10/2022] [Indexed: 06/15/2023]
Abstract
Mercury behavior upon resuspension of sediments from two impacted areas of Guanabara Bay was evaluated to assess worst-case methylmercury (MeHg) responses, under dark experimental conditions to prevent demethylation by photolysis. Study areas include the Rio de Janeiro Harbor (RJH) and the chlor-alkali plant-affected Meriti River (MR) estuary. Total mercury (THg) and MeHg concentrations were determined along 24-h experiments of sediment resuspension in the bay water in dark conditions. Fine-grained Meriti River (MR) estuary sediments had 8 times higher MeHg initial concentrations than sandy Rio de Janeiro Harbor (RJH) sediments (3.4 ± 0.29 vs. 0.41 ± 0.1 ng g-1, respectively). Though THg contents were uncorrelated with resuspension time, statistically significant correlations of MeHg (rs = 0.78) and %MeHg in relation to THg (rs = 0.86) with resuspension time were observed for RJH sediments, indicating net methylation only for this study site. These positive correlation trends correspond to a 2.8 times MeHg concentration increase (ΔMeHg = 0.75 ng g-1) and 4.4 times increase in %MeHg (Δ%MeHg = 1.0%), after 24 h of resuspension. This suggests that assessments of factors affecting the MeHg spatial-temporal variability and associated toxicity risks can be limited in some sites if concentration changes due to sediment resuspension-redeposition processes are not considered. Therefore, the inclusion of MeHg evaluation before and after sediment resuspension events is recommendable for the improvement of dredging licensing and monitoring activities.
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Affiliation(s)
- Christiane N Monte
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil.
- Geology Department, Universidade Federal Do Oeste Do Pará, Santarém, PA, Brazil.
| | - Ana Paula C Rodrigues
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Marine Biology Department, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | - Petrus M A Galvão
- Biophysics Institute, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | - Gabriela C Pontes
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Olaf Malm
- Biophysics Institute, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | - Júlio C Wasserman
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Geosciences Institute, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Wilson Machado
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil
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