Heavy Metal Partitioning in Bottom Sediments of the Matanza-Riachuelo River and Main Tributary Streams

Rendina, A.; Iorio, Alicia Fabrizio de

doi:10.1080/15320383.2012.636776

Cited by 26 publications

(13 citation statements)

References 33 publications

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“…However, the TOC content is also lower in the Recent sediments of R1TA (black mud) and R1TB (intraformational conglomerate). These low TOC levels were found neither in the neighboring Luja ´n nor in the Matanza-Riachuelo rivers (Cataldo et al, 2001;Rendina & Fabrizio de Iorio, 2012) and may be caused by the sulfur-reducing bacteria (Porzionato et al, 2016) that degrade OM and precipitate sulfides. Consistently, sulfur is more abundant in the sample R1TA, and this may account for the black color of the sediment (in spite of the low OM content).…”

Section: Geochemistrymentioning

confidence: 87%

Geochemical characterization and the assessment of trace element retention in sediments of the Reconquista River, Argentina

Cantera

Tufo

Scasso

et al. 2021

Environ Geochem Health

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The mineralogical and geochemical characterization of sediments of the Reconquista River allows analyzing the geochemical partition of trace elements in one of the most polluted water courses of Argentina. The low dissolved oxygen and high ammonia contents, together with the high chemical oxygen demand, attest to the poor water quality. Ammonia, Cd and Cu content in surficial water exceeds the maximum guidelines for freshwater in Argentina. The recent sediments of the uppermost bed are enriched in organic matter (OM), sulfur, Zn, Cu and Pb. The enrichment factor is moderate, and the geoaccumulation index (Igeo) for Cu and Pb indicates uncontaminated to moderately contaminated sediments. The positive and significant correlation between As, Cr, Pb and Zn with the iron content suggests that their retention is controlled by the amount of iron oxy (hydr)oxides in the sediments, probably combined with the silt ? clay abundance. In comparison with its tributary, the Las Catonas Stream, the Reconquista River, has less OM and trace elements in the sediments and more dissolved trace elements in the interstitial water. We interpret that OM is the main

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Section: Geochemistrymentioning

confidence: 87%

Geochemical characterization and the assessment of trace element retention in sediments of the Reconquista River, Argentina

Cantera

Tufo

Scasso

et al. 2021

Environ Geochem Health

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“…Calcite was suggested to interfere with Pb solubility at high metal concentrations, leading to formation of Pb-carbonate precipitates (Rouff et al 2004). The metal was also found to be mainly bound to AVS (Rendina and de Iorio 2012) or to soil organic matter (Gonzáles et al 2000). Our results support the major relevance of labile organic matter as the binding phase for Pb even in calcareous soils.…”

Section: Discussionmentioning

confidence: 99%

Soil Organic Carbon and Carbonates are Binding Phases for Simultaneously Extractable Metals in Calcareous Saltmarsh Soils

Pellegrini

Contin

Antisari

et al. 2019

Enviro Toxic and Chemistry

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The ability of the simultaneously extracted metals/acid volatile sulfides (∑SEM/AVS) index to ascertain environmental risk from potentially toxic elements in calcareous saltmarsh soils was tested using structural equation modeling. This technique allows the detection of both direct and indirect relationships among AVS, SEM, and other soil variables, representing results in a graphical view. The dataset included 90 soil samples from 21 different sites belonging to 6 different saltmarshes and featured a wide range of soil chemicophysical properties. Variables included in the a priori model were hydroperiod, pH, soil redox potential, labile organic carbon, carbonates, total iron, and total amount of potentially toxic elements (PTEs). The best optimized model pointed out the main soil properties that affect AVS accumulation and SEM speciation in these soils. Effect plots of AVS and SEM calculated with the partial linear mixed‐effects models included in the piecewise structural equation modeling showed a significant and positive influence of pH and carbonates on AVS and a highly significant effect of carbonates and labile organic carbon on SEM. Single SEM components were also considered separately, to define the potential contributions of labile organic carbon or carbonates as alternative binding phases. Simultaneously extracted Cu, Ni, and Zn were preferentially bound to carbonates, followed by labile organic carbon, whereas Pb and Cd were easily bound to labile organic carbon. Environ Toxicol Chem 2019;38:2688–2697. © 2019 SETAC

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“…The levels of organic matter and phosphorus were higher in the middle and lower subbasin, sulfides in the middle subbasin, and nitrates in middle and upper subbasins. These variables play a key role in the dynamics of pollutants within this matrix (Eggleton and Thomas, 2004;Rendina and Iorio, 2012) and reflect a direct relationship to land use as a potential source of contamination of organic origin (Di Marzio et al, 2005). As mentioned above, several sectors of the middle subbasin evidenced sewage pollution associated with informal urban settlements, which relationship would necessarily point to that housing situation as being an anthropic source of organic loading into the stream system.…”

Section: General Physical and Chemical Parametersmentioning

confidence: 98%

Multidisciplinary approach to a study of water and bottom sediment quality of streams associated with mixed land uses: Case study Del Gato Stream, La Plata (Argentina)

Rimoldi

Peluso

Rossini

et al. 2018

Ecological Indicators

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Surface water bodies receive a basin's wide diversity of pollutants, especially when there are mixed land uses. Among the many environmental tools to assess a body water quality, most studies use only a few. In addition these studies, usually, are focused only on a set of pollutants and an environmental matrix. The Del Gato Stream a surface watercourse within of more populated area of Argentinaexemplifies the typically contrasting land uses around this area's streams. The predominant land uses along of the stream are agricultural in the upper, urban and industrial the middle, and animal husbandry in the lower subbasin. The aim of this study was to use a multidisciplinary approach to evaluate the environmental quality of that stream as a model of surface-water bodies within mixed-land-use regions in the Buenos-Aires metropolitan area. At each of the sampling sitesdistributed along the stream as follows: 3 in the upper, 4 in the middle, 3 in the lower subbasingeneral water parameters were measured; water and sediment samples taken for physical, chemical, microbiological, and ecotoxicological analysis; and the variables in each environmental matrix, analyzed separately and jointly. The stream presented a significant general deterioration, the middle subbasin with urban-industrial land use being the most impacted, where metals and metalloids recorded highest levels, and the rest of the measured parameters were also found at high levels. The upper subbasin had the highest quality, and the lower subbasin proved poor quality regarding microbiological variables, nutrients, and general water parameters. The tests included in the toxicity battery did not reflect a common pattern of toxicity along the watercourse. However, when they were integrated in the EDAR index, the middle subbasin was the most affected sector of the stream. Although, the usefulness of each analysis tool must be evaluated taking into account the objective of the study, if the aim is to know the general environmental quality of a stream, the multiple-factor analysis proved to be the most effective means in complex systems under the influence of great diversity of pollution sources. This study provides relevant information about the ecological quality of a stream representative of a region with scarce environmental information.

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Heavy Metal Partitioning in Bottom Sediments of the Matanza-Riachuelo River and Main Tributary Streams

Cited by 26 publications

References 33 publications

Geochemical characterization and the assessment of trace element retention in sediments of the Reconquista River, Argentina

Geochemical characterization and the assessment of trace element retention in sediments of the Reconquista River, Argentina

Soil Organic Carbon and Carbonates are Binding Phases for Simultaneously Extractable Metals in Calcareous Saltmarsh Soils

Multidisciplinary approach to a study of water and bottom sediment quality of streams associated with mixed land uses: Case study Del Gato Stream, La Plata (Argentina)

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