Uso do bivalve límnico Anodontites tenebricosus (LEA, 1834) no biomonitoramento de metais do Rio Ribeira de Iguape

Rodrigues, Valéria Guimarães Silvestre; Fujikawa, Aline; Abessa, Denis Moledo de Souza; Hortellani, Marcos Antonio; Sarkis, J.E.S.; Sígolo, Joel Barbujiani

doi:10.1590/s0100-40422012000300003

Cited by 23 publications

(22 citation statements)

References 12 publications

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“…In other words, scavenging metals by colloid formation or adsorption over fines and TOC add extra surface for dissolved metal (F3) as transporter towards the Cananéia-Iguape Estuarine Complex. Biological data gives support to our findings, as bioaccumulation of metals were observed in bivalves, and significant correlations were observed between Pb concentrations in sediments and in soft tissues of the bivalves Anodontites tenebricosus and Corbicula fluminea (Guimarães and Sígolo 2008b;Rodrigues et al 2012), with higher levels being reported for the lower RIR.…”

Section: Resultssupporting

confidence: 89%

“…Abnormalities were observed for As and Pb, and despite their low concentrations (and low associated risks), these two elements are present in potentially bioavailable form. In fact, previous studies reported for bioaccumulation of Pb in invertebrates from RIR (Guimarães and Sígolo 2008b;Rodrigues et al 2012), while contamination by As occurs along the basin, as this element is associated with mining residues from gold mines.…”

Section: Resultsmentioning

confidence: 96%

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Metal contamination and fractionation in sediments from the lower basin of the Vale do Ribeira (SE, Brazil)

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Buruaem

Morais

et al. 2017

Environ Monit Assess

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The sediment quality of Ribeira de Iguape River is affected by former Pb extraction mining. Some studies affirm the restoration status of the basin, however, mobility of metals and its associated risk is still questioned. This study integrates the metal concentrations in the lower part of the basin with different contamination source to determine the existence of risks associated with the mobile fractions of the geochemical matrix. Despite concentrations of metals were low and the environmental risk factor values were negative, our results indicated that As, Mn, Pb, and V were present in the most labile forms. The multivariate analysis conducted using metal concentrations, environmental risk factor values and speciation suggested that any risk would be associated with the labile fractions of the analyzed elements, especially for Pb. The station from Registro was stressed by Co, Pb and Zn; with Pb under the reactive fraction that could be associated with high mobility and potential bioavailability.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 96%

Metal contamination and fractionation in sediments from the lower basin of the Vale do Ribeira (SE, Brazil)

Bonnail

Buruaem

Morais

et al. 2017

Environ Monit Assess

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“…In fact, environmental Pb exposure has been recognized as a serious public health problem (WHO, 1995). In Brazil, episodes of environmental contamination related to effects on human populations associated with Pb mining and processing were identified at the Santo Amaro da Purificação municipality (BA) (Andrade and Moraes, 2013) and across the Ribeira de Iguape River basin (SP) Sigolo, 2008a, 2008b;Abessa et al, 2012;Rodrigues et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Implications on the Pb bioaccumulation and metallothionein levels due to dietary and waterborne exposures: The Callinectes danae case

Bordon

Emerenciano

Melo

et al. 2018

Ecotoxicology and Environmental Safety

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This study aimed to assess the bioaccumulation of Pb and induction of metallothionein-like proteins (MT) in Callinectes danae through single and combined dietary and waterborne exposures. Male C. danae individuals were collected in the south area of the Cananéia-Iguape-Peruíbe Protected Area (APA-CIP), in São Paulo State, Brazil. After an acclimatization period, exposure assays were performed during 7 and 14 days, at two Pb concentrations (0.5 e 2.0 µg/g) in 4 treatments: 1) control; 2) contaminated water only; 3) contaminated food only; 4) contaminated water and food. The results indicate that C. danae is highly tolerant to Pb exposure at the evaluated concentrations. In gills, Pb bioaccumulation is more dependent of water efflux and time of exposure (higher Pb values). However, pathways act simultaneously in the induction of MT expression in this tissue. The decreases in Pb accumulation in the combined treatments and MT increases after 14 days in gills suggests that these proteins play a detoxification function in the presence of Pb. In hepatopancreas, depending on the predominance of a certain pathway or combined pathways, accumulation occured at different times. For muscle tissue, bioaccumulation was observed due to contaminated water exposure, but not dietary exposure, probably because Pb concentrations were low.

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“…The Ribeira Valley (Ribeira de Iguape water basin and Cananéia-Iguape estuarine complex) is a well-known region due to its historic Pb exploitation. The improper disposal of Pb slags in the soils and the upper Ribeira de Iguape river led to the contamination of many municipalities downstream, including the Cananéia-Iguape estuarine complex (Bosso and Enzweiler, 2002;Guimarães and Sígolo 2008;Rodrigues et al, 2012;Mahiques et al, 2013;Piedade et al, 2014;Kasemodel et al, 2016;Tramonte et al, 2016). There is a necessity of proper landfill implantation for the mining waste.…”

Section: Cec and Ssmentioning

confidence: 99%

Adsorption of lead (Pb) in strongly weathered tropical soil (Ribeira Valley region - Brazil)

et al. 2019

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Lateritic soils have been widely used in the construction of landfill base liners for municipal and industrial waste. On the other hand, there is little practice in the use of strongly weathered residual soils for this finality. The use of local soil for the construction of liners in order to waterproof and retain contaminants represents an alternative to control this type of contamination. Thus, the objective of this study was to determine the physical and chemical properties of a strongly weathered tropical soil (residual soil) collected in the city of Eldorado Paulista (Ribeira Valley), and to evaluate the abilityof this soil to adsorb lead (Pb). The contamination of soil and water by Pb due to inadequate mining waste disposal is common in this region. The Pb was adsorbed by the residual soil, mainly at the lowest initial concentrations. When the initial concentration of 20 mg L-1 was used, the adsorption percentage of Pb was 92.5% and when the initial concentration was 100 mg L-1, the adsorption rate was 81.7%. In addition to the retention of Pb, this soil presented the following characteristics which are favorable for using soils in the construction of liners: fine granulometry, liquid limit (LL) of 57%, plasticity index (PI) of 33%, oxidizing medium and the predominance of negative charges on the surface of the colloidal particles. Thus, it is concluded that the weathered tropical residual soil exhibits characteristics that allow it to be used as a liner in the disposal of residues containing Pb.

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Uso do bivalve límnico Anodontites tenebricosus (LEA, 1834) no biomonitoramento de metais do Rio Ribeira de Iguape

Cited by 23 publications

References 12 publications

Metal contamination and fractionation in sediments from the lower basin of the Vale do Ribeira (SE, Brazil)

Metal contamination and fractionation in sediments from the lower basin of the Vale do Ribeira (SE, Brazil)

Implications on the Pb bioaccumulation and metallothionein levels due to dietary and waterborne exposures: The Callinectes danae case

Adsorption of lead (Pb) in strongly weathered tropical soil (Ribeira Valley region - Brazil)

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