Assessment of heavy metals in sediments of the Parnaíba River Delta in the semi-arid coast of Brazil

Filho, Francisco José de Paula; Marins, Rozane Valente; Santos, Deivid Vitor; Junio, Raí Felipe Pereira; Menezes, Jorge Marcell Coelho; Gastão, Francisco Gleidson Costa da; Guzzi, Anderson; Teixeira, Raimundo Nonato Pereira

doi:10.1007/s12665-021-09456-2

Cited by 7 publications

(2 citation statements)

References 48 publications

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“…In this study, the metals that showed the highest concentrations in water and sediments were Fe and Mn. However, de Paula Filho et al (2021) observed in sediments from the estuary of the Parnaíba River (semiarid northeast of Brazil) the following ranking: Al > Fe > Mn > Zn > Cr > Ni > Cu > Pb > Cd, which with the exception of Al followed the same pattern that we observed. We highlight that this study has a geochemical bias and metals were not evaluated in any aquatic community.…”

Section: Discussionsupporting

confidence: 83%

Concentrations of metals in water, sediments and aquatic macrophytes in a river located in a region with a hot semi-arid climate

Oliveira,

Camargo,

Silva

et al. 2024

Acta Limnol. Bras.

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Aim i) is there a difference in the level of contamination in the different parts of the basin in the water, sediment and aquatic macrophytes compartments? and ii) do the three compartments respond similarly to metal contamination? Methods Samples of water, sediment and aquatic macrophytes (Salvinia auriculata Aubl., Pistia stratiotes L., Ludwigia helminthorrhiza (Mart.) H. Hara and Eichhornia crassipes (Mart.) Solms) were collected at 10 sampling sites in different stretches of a tropical hydrographic basin. We determined the metal concentrations of Fe, Pb, Ni, Zn, Mn, Cr, Cu and Cd, and to the results we applied Principal Component Analysis (PCA), separately for each compartment, to order the sampling sites. Results Fe and Mn had higher concentrations than other metals in plants and sediment. With the exception of Mn, the order of metals was similar between water and sediment. However, the PCAs ordered the sampling sites differently. Our results demonstrated that the ordering of sampling sites by metal concentrations differs among water, sediment and macrophytes. Conclusions We conclude that to evaluate the contamination of aquatic environments by metals and the effects of contamination on the food chain, it is not enough to evaluate them only in water or sediment, but also in an aquatic community.

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Section: Discussionsupporting

confidence: 83%

Concentrations of metals in water, sediments and aquatic macrophytes in a river located in a region with a hot semi-arid climate

Oliveira,

Camargo,

Silva

et al. 2024

Acta Limnol. Bras.

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“…The importance of residual organic matter from fish farming can be understood considering Paula-Filho et al [ 86 ] when they stated that the correlations between organic matter and metals can represent the greater retention of metals by biogenic fractions of the sediment. Komala et al [ 3 ] attributed organic matter as the correlation factor between metals and sediments from fish farming in Lake Manijau, Indonesia.…”

Section: Resultsmentioning

confidence: 99%

Impacts of the Residual Trace Metals of Aquaculture in Net Cages on the Quality of Sediment

Júnior

Filho

Menezes

et al. 2023

Life

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Anthropogenic pollution by trace metals in aquatic environments in semiarid zones is a critical area of investigation. The objective of this study was to investigate the concentration and spatial distribution of trace metals in surface sediments in the Rosário reservoir, which is affected by the intensive aquaculture of Tilápia-do-Nilo (Oreochromis niloticus). Sediment samples were collected in three different areas, postculture (PCTV), cultivation (CTV) and control (CTRL) in the dry season in 2019. The granulometric composition, organic matter and concentrations of Fe, Mn, Zn, Cu, Cr, Cd, Pb and Ni metals were determined. Multivariate statistics were used. Geochemical and ecotoxicological indices and a comparison with sediment quality guidelines (SQG) were used. The sediment was characterized by silty clay loam with an average organic matter of 18.76 ± 4.27. The analytical merit figures demonstrated accuracy (metal recoveries in certified standards) between 89 to 99% and high precision (RSD < 5%). The concentration ranges for the metals were Fe: 0.11–0.85 (%), Mn: 14.46–86.91, Zn: 2.6–220.56, Cu: 26.89–98.75, Cr: 60.18–76.06, Cd: 0.38–0.59, Pb: 18.13–43.13, and Ni: 34.4–46.75, all in (mg/kg−1). The highest concentration values were found in the CTV areas (Fe: 40 ± 0.22, Mn: 66.48 ± 19.11, Zn: 114.83 ± 59.75 and Cr: 70.85 ± 2.62) and PCTV (Cd: 0.53 ±0.04, Cu: 71.83 ± 21.20, Pb: 33.71 ± 4.34 and Ni: 44.60 ± 1.79). Pearson’s correlation, hierarchical cluster analysis and principal component analysis confirmed the influence of fish farming on metals. Only Ni presented concentration values higher than the reference value established in the SQG. Thus, considering the probable geochemical and ecotoxicological effects, they comprise the two lowest levels of impact.

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Riverine Cu-distribution in sediments of the Jaba-Kawerong river system 30 years after cease of mining at Panguna/Bougainville

Sindern,

Küpper,

Müller

et al. 2024

Environ Earth Sci

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The investigation of surface and river sediments over 30 years after the cease of large scale Cu and Au mining operation at Panguna (Bougainville) shows the impact of mining and tailings disposal on the associated riverine environment. While Zn, Pb and Cd have elevated concentrations in the former mining area and are low (< 100, < 28, < 1 mg/kg, respectively) in sediment of the Jaba-Kawerong river system, Cu represents the dominant environmental metal emission. Sediments of active streams and overbank deposits range between 1000 and 3000 mg/kg Cu. Most samples exceed freshwater sediment or soil quality guideline values, indicating the probability of toxic effects on sediment dwelling or aquatic organisms and ecological or health risks associated to agricultural use of the former mining area and floodplains. Copper in surface and river sediments is associated to bornite, chalcopyrite and chloritized biotite of the primary Panguna ore mineral assemblage. This attests to ongoing remobilization of sediment and/or reflects mobilization of additional Cu bearing material from the waste rock dump of the Panguna mine. Copper in surface and river sediments is also contained in secondary Cu-phases such as covellite as well as hydrated basic Cu-sulfates, which formed under locally variable redox conditions. Fe-oxihydroxides, occurring in variable abundance as reflected by Fe concentrations between 18,200 and 379,000 mg/kg (Mn 145–3086 mg/kg), can be identified as further Cu-carriers, taking up the metal from the aqueous phase in the sedimentary pore space. Mine derived input of Cu bearing minerals is confined to the sedimentary body of the Jaba-Kawerong river system. The diversity of Cu bearing phases with different environmental and processing properties sets constraints on re-processing sediments as secondary Cu-ores or re-using of sediments as building material.

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Assessment of heavy metals in sediments of the Parnaíba River Delta in the semi-arid coast of Brazil

Cited by 7 publications

References 48 publications

Concentrations of metals in water, sediments and aquatic macrophytes in a river located in a region with a hot semi-arid climate

Concentrations of metals in water, sediments and aquatic macrophytes in a river located in a region with a hot semi-arid climate

Impacts of the Residual Trace Metals of Aquaculture in Net Cages on the Quality of Sediment

Riverine Cu-distribution in sediments of the Jaba-Kawerong river system 30 years after cease of mining at Panguna/Bougainville

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