Data analysis of heavy metal content in riverwater: multivariate statistical analysis and inequality expressions

Leventeli, Yasemin; Yalçın, Fusun

doi:10.1186/s13660-021-02549-3

Cited by 29 publications

(9 citation statements)

References 51 publications

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“…37−43 Nevertheless, Pb concentrations in the current basin were higher than in Euphrates and Akcay rivers. 39,40 Cr(VI) showed higher concentrations in the present basin than in Euphrate and Catalan rivers. 39,41 As concentrations were higher than those of the Akcay and Catalan rivers.…”

Section: Characteristics Of the Esil River Basin's Water Quality 311 ...mentioning

confidence: 57%

“…39,41 As concentrations were higher than those of the Akcay and Catalan rivers. 40,41 Overall, the HM pollution of the Esil river basin could be categorized as a medium contaminated level compared to water basins of other industrial counties. S2 depicts the four HMs' monthly median concentrations in the 15 sites of the Esil river basin.…”

Section: Characteristics Of the Esil River Basin's Water Quality 311 ...mentioning

confidence: 99%

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Trace Heavy Metal Contamination of Urban Water Bodies in Central Asia: Its Distribution, Source Detection, and Probabilistic Health Risk Assessment for Recreational and Household Use of Water

Bahetnur

Lee

2023

ACS EST Water

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Water scarcity, security, and deterioration of water quality have been serious environmental issues in Central Asia. This study has investigated the contamination of the Esil river, the only transboundary river originating in Kazakhstan, and implemented the human health risk assessment of heavy metals (HMs; Cd, Pb, Cr(VI), and As) in its relevant 15 surface water bodies. HM concentrations in 2893 water samples were measured over 6 years (2014–2019). The river’s water quality was classified between “marginal” and “good,” but nine sites revealed worsened quality during the period. The monitored HMs’ median concentrations followed a decreasing order of Cr(VI) (0.0015 mg/L) = As (0.0015 mg/L) > Pb (0.0009 mg/L) > Cd (0.00005 mg/L). Human-induced behaviors, especially industrial activities, were observed to influence the water quality negatively. Due to the growth of cities, municipal wastes and the release of pollutants during construction activities were potential origins of HMs, too. Two exposure scenarios for the human health risk assessment were investigated: the risks from a recreational activity scenario were acceptable, but concerning values were obtained from a household use scenario, including seven sites with hazard index (HI) > 1 and a maximum cancer risk of 7.22 × 10–4.

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Section: Characteristics Of the Esil River Basin's Water Quality 311 ...mentioning

confidence: 57%

Section: Characteristics Of the Esil River Basin's Water Quality 311 ...mentioning

confidence: 99%

Trace Heavy Metal Contamination of Urban Water Bodies in Central Asia: Its Distribution, Source Detection, and Probabilistic Health Risk Assessment for Recreational and Household Use of Water

Bahetnur

Lee

2023

ACS EST Water

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“…Before conducting the factor analysis, the sampling adequacy of the data for the factor analysis was tested using the Kaiser-Meyer-Olkin test, and the test statistics revealed that the data is suitable [41]- [44] (Table 7). The measure of sampling adequacy is expected to be greater than 0.5 for the suitability of the data for the factor analysis [35], [45]- [50]. In this context, the value that was calculated as 0.52 revealed the suitability of geochemical data for the factor analysis.…”

Section: Factor Analysismentioning

confidence: 99%

Geostatistical analysis and spatial distribution map of geochemical contents of the Susuzdag Formation limestones

Atakoglu¹,

Yalçın²

2022

Pamukkale J Eng Sci

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ÖzLimestones, which are a type of carbonate rocks that are classified as karstification of rocks, are widely observed in the Antalya complex. The assessment of the elemental relationships in the formation of limestones by using statistical methods is important for the interpretation of paleoredox states in the environment and for understanding its diagenetic conditions. In the study, limestone samples collected from the Susuzdag Formation were analyzed by the XRF method to determine their chemical contents. Also, thin cross-sections of the limestone samples were prepared and the mineralogical properties of the formation were determined by performing detailed optical microscopy examinations. The order of the contents enriched during the formation of limestones is as follows: SiO2,

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“…Para comparar la efectividad del proceso de adsorción en los experimentos, se calculó el valor de la capacidad de adsorción (q) de la biomasa con la ecuación [1]:…”

Section: Tabla 1 Variables Y Sus Niveles Para El Diseño Experimentalunclassified

“…Una problemática ambiental de gran relevancia en el mundo ha sido la contaminación de mares, ríos y otros afluentes por metales pesados [1,2]. Entre estos metales, Cr (VI) se clasifica como uno de los más peligrosos y tóxicos [3][4][5][6][7].…”

Section: Introductionunclassified

Aprovechamiento de residuos de Eichhornia Crassipes para la remoción de Cr (vi) en aguas residuales simuladas

et al. 2022

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Eichhornia crassipes es una planta considerada una plaga para los diferentes ecosistemas acuáticos en el mundo. Además el Cr (VI) es un contaminante acuático altamente tóxico. Se estudió la capacidad de adsorción de la Eichhornia crassipes como bioadsorbente para la remoción de Cr (VI) presente en un agua residual simulada. La concentración del ion en solución, pH y temperatura fueron estudiadas como variables en un diseño experimental factorial simétrico, y mediante análisis ANOVA. La mayor capacidad de adsorción Cr (VI) (2.5 mgꞏg-1) se obtuvo a 75 ppm de Cr (VI), pH de 1.5 y 45 °C. Se observaron grupos funcionales superficiales que mediante atracción electrostática y formación de puentes de hidrógeno favorecieron la adsorción de Cr (VI). Esto permite concluir que el bioadsorbente es efectivo para la remoción de Cr (VI) en solución con un proceso simple y de bajo costo. Eichhornia crassipes commonly called water hyacinth, is a plant considered a pest for the different aquatic ecosystems in the world. Furthermore, Cr (VI) is a highly toxic aquatic pollutant. In order to contribute to the solution of these two environmental problems, the adsorption capacity of water hyacinth as a bioadsorbent was studied for the removal of Cr (VI) in a simulated wastewater. The ion concentration in solution, pH y temperature were studied using a symmetric factorial experimental design y applicating an ANOVA analysis. The highest Cr (VI) adsorption capacity (2.5 mgꞏg-1) was obtained at 75 ppm of Cr (VI), pH of 1.5 y 45 ° C. Surface functional groups were observed that, through electrostatic attraction y formation of hydrogen bonds, favored the adsorption of Cr (VI). This allows to conclude that this bioadsorbent is effective for the elimination of Cr (VI) in solution using a simple y low-cost process.

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Data analysis of heavy metal content in riverwater: multivariate statistical analysis and inequality expressions

Cited by 29 publications

References 51 publications

Trace Heavy Metal Contamination of Urban Water Bodies in Central Asia: Its Distribution, Source Detection, and Probabilistic Health Risk Assessment for Recreational and Household Use of Water

Trace Heavy Metal Contamination of Urban Water Bodies in Central Asia: Its Distribution, Source Detection, and Probabilistic Health Risk Assessment for Recreational and Household Use of Water

Geostatistical analysis and spatial distribution map of geochemical contents of the Susuzdag Formation limestones

Aprovechamiento de residuos de Eichhornia Crassipes para la remoción de Cr (vi) en aguas residuales simuladas

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