Metal Contamination of Water and Sediments of the Vieira River, Montes Claros, Brazil

Reis, Matheus Mendes; Santos, L.D. Tuffi; Silva, Ariovaldo José da; Pinho, Gevany Paulino de; Montes, William Gomes

doi:10.1007/s00244-019-00666-1

Cited by 16 publications

(10 citation statements)

References 25 publications

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“…In our study, eight rivers revealed Zn levels above the quality criteria 32 , ranging from 1.5 until 4.2 times higher than the MCL (30 µg L −1 ). These levels were still found below contamination levels from other studies realized in China 46 and Brazil 54 . However, our levels of Zn are superior to the levels reported in Argentina 55 .…”

Section: Discussioncontrasting

confidence: 71%

Determining the microbial and chemical contamination in Ecuador’s main rivers

Vinueza

Ochoa‐Herrera

Maurice

et al. 2021

Sci Rep

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One major health issue is the microbial and chemical contamination of natural freshwater, particularly in Latin American countries, such as Ecuador, where it is still lacking wastewater treatment plants. This study analyzed the water quality in twelve rivers of Ecuador (Coastal, Andean, and Amazonian regions). All rivers showed levels of E. coli and total coliforms above the maximum limit according to International and Ecuadorian legislations. The most polluted rivers were Zamora, Esmeraldas and Machángara. Also, E. coli pathotypes were found in six rivers. Several physicochemical and metal parameters were detected in high levels, such as CODTOTAL (in eight rivers), TSS (in six rivers), TS (in two rivers), Al (in nine rivers), Zn (in eight rivers), Pb (in three rivers), Cu (in three rivers), Fe (in two rivers), and Mn (in Machángara River). Our results agree with other studies in Latin America (such as Colombia, Brazil, and Peru) reporting similar contamination in water resources used for agriculture, livestock, and human consumption. Overall, Guayas, Guayllabamba, and Machángara Rivers showed the highest levels of physicochemical parameters (such as CODTOTAL and TSS) and metal concentrations (such as copper, zinc, aluminum, iron, and manganese). Further studies should evaluate contamination sources and public health impact.

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Section: Discussioncontrasting

confidence: 71%

Determining the microbial and chemical contamination in Ecuador’s main rivers

Vinueza

Ochoa‐Herrera

Maurice

et al. 2021

Sci Rep

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“…Such strong contamination of bottom sediments with chromium caused an increase in this element’s concentration in coastal plants, in such a way, that in Solidago virgaurea L. the chromium concentration was 16.00 mg kg −1 . Cr comes from anthropogenic pollution sources (Reis et al 2019 ).…”

Section: Resultsmentioning

confidence: 99%

Elevated Urbanization-Driven Plant Accumulation of Metal(loid)s Including Arsenic Species and Assessment of the Kłodnica River Sediment Contamination

Jabłońska‐Czapla

Grygoyć

2022

Arch Environ Contam Toxicol

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The impact of water and bottom sediment pollution of a river subjected to a strong industrial anthropogenic pressure of metal(loid) (including arsenic and its species) accumulation in riverbank plants such as Solidago virgaurea L., Phragmites L. and Urtica dioica L. was investigated. The high-performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) technique was used to study organic and inorganic arsenic species in selected plants and their response to heavy metal and arsenic contamination. The modified BCR extraction results showed that arsenic was mainly bound to the mobile reducible and organic-sulfide fractions in the Kłodnica River bottom sediments. Research has shown that the bottom sediments of the Kłodnica River are contaminated with metals, including Pb, Zn, Ni, As, and among arsenic species, the As(V) form dominated quantitatively, with its highest concentration being 49.3 mg kg−1 and the organic species occurred extremely rarely. The highest concentration of arsenic, among the tested plants, occurred in Phragmites communis L. The evaluation of the bottom sediment pollution was performed using Sb/As factor, geoaccumulation index (Igeo), enrichment factor (EF) and pollution load index (PLI). The ability of the plant to assimilate metals from the substrate was studied by calculation of the bioaccumulation factor (BAF). Values of the Igeo change in a wide range from class 1 (uncontaminated to moderately polluted for Cu and Zn) at the first sampling point, to 5 (highly to extremely polluted for Ba and Fe) at the K4 sampling point. The Igeo results show an increase in the contamination with elements toward the runoff of the Kłodnica River.

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“…Brazil, like many other developing countries, struggles with PTE contaminations (Reis et al, 2019;Trevizani et al, 2019;Fernandes et al, 2020). As regards Mogi-Guaçu river basin, some studies have shown the presence of Pb, Cd, and Zn (among others PTE) in high concentrations in water, sediments, and living organisms; wherein, their concentrations can vary according to the period of floods (Tomazelli and Martinelli, 1999;Tomazelli, 2003;Silva, 2005;La Serra, 2015).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the use of tropical peats as local alternative materials for the adsorption of Pb, Zn and Cd: An equilibrium study

et al. 2021

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Peat is an organic material that has been widely used as an efficient and low-cost adsorbent. As many studies tend to focus on temperate peats, there is a lack of knowledge about the adsorption mechanism of tropical peats. This paper investigates the use of two Brazilian peats (Cravinhos - C and Luis Antônio - LA) from the Mogi-Guaçu river basin for the adsorption of lead (Pb), zinc (Zn), and cadmium (Cd), in order to contribute to the use of local and easy access materials to remediate contaminated sites. The peats adsorbed a high percentage of cations, especially Pb cations (100.0-46.3%), with commercial peat C showing higher adsorption than peat LA. The removal order was Pb2+ > Cd2+ ≥ Zn2+ for C and Pb2+ > Zn2+ > Cd2+ for LA. The batch data for both peats and for all metals were better fit by the Langmuir isotherm, with adsorption capacities (qm) for Pb, Zn, and Cd of 37.3134, 29.0674 and 21.2890 mmol kg-1 in peat C and 21.7391, 14.2550 and 3.6460 mmol kg-1 in LA, respectively, values comparable to those of other peats and biosorbents. The studied peats are considered efficient, alternative and low-cost adsorptive materials for these metals. The proximity of peatlands to areas with high potential for contamination necessitates the use of local materials to reduce remediation costs.

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Metal Contamination of Water and Sediments of the Vieira River, Montes Claros, Brazil

Cited by 16 publications

References 25 publications

Determining the microbial and chemical contamination in Ecuador’s main rivers

Determining the microbial and chemical contamination in Ecuador’s main rivers

Elevated Urbanization-Driven Plant Accumulation of Metal(loid)s Including Arsenic Species and Assessment of the Kłodnica River Sediment Contamination

Assessment of the use of tropical peats as local alternative materials for the adsorption of Pb, Zn and Cd: An equilibrium study

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