Fractional and group composition of zinc and lead compounds as an indicator of the environmental status of soils

Mandzhieva, Saglara; Minkina, Tatiana; Motuzova, G. V.; Golovatyi, S. E.; Miroshnichenko, N. N.; Lukashenko, N. K.; Fateev, A. I.

doi:10.1134/s1064229314050159

Cited by 21 publications

(6 citation statements)

References 8 publications

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“…The Tessier procedure of fractionating metals is largely similar to other methods used for the analysis of soils, sediments, and bottom sediments. The long experience in the fractionation of heavy metals from the main soils of southern Russia (Haplic Chernozems and Сhestnut soils) by the Tessier method showed the validity of this scheme and the objectivity of its results (Minkina et al 2008(Minkina et al , 2011(Minkina et al , 2013Mandzhieva et al 2014). This procedure ensures the separation of five fractions of Pb (Table 1): 1.…”

Section: Sequential Extractive Fractionationmentioning

confidence: 93%

“…The soil had a silt content of 286 g kg −1 and a clay content of 471 g kg −1 ; pH (water) of 7.3; organic C content of 23 g kg −1 ; CaCO 3 content of 1 g kg −1 ; cation exchange capacity of 37.1 cmolc kg −1 ; and exchangeable Ca, Mg, and Na contents of , 29.5, 5.5, and 0.1 cmolc kg −1 , respectively (Mandzhieva et al 2014).…”

Section: Sample Descriptionmentioning

confidence: 99%

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Comprehensive study of Pb (II) speciation in soil by X-ray absorption spectroscopy (XANES and EXAFS) and sequential fractionation

et al. 2015

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Purpose The study is aimed at the analysis of the spatialstructural organization of Pb(II) in Chernozem soils and the relationship between the metal ion and the soil components using X-ray absorption spectroscopy and chemical extractive fractionation. Materials and methods In a model experiment, soil samples were artificially contaminated with elevated rates of Pb(NO 3 ) 2 and PbO (2000 and 10,000 mg kg −1 ). The samples of mineral phases (bentonite, gibbsite, kaolinite, calcite, and hydromuscovite) were saturated with Pb 2+ ions. The sequential fractionation of Pb in the soil was conducted by the Tessier method. X-ray absorption near-edge fine structure (XANES) spectra at the Pb L III -edge (13.040 keV) were obtained on a Rigaku R-XAS Looper spectrometer. Extended X-ray absorption fine structure (EXAFS) L III -edge Pb was measured at the Structural Materials Science beamline of the Kurchatov Center for Synchrotron Radiation. Results and discussion The results of successive extraction showed that Pb is associated with strongly bound organic substances, Fe and Mn (hydr)oxides, and carbonates. An increase in the portion of exchangeable fraction is observed under extreme loads. At the addition of Pb in the form of oxide and nitrate to the soil, the fractional compositions were similar, which indicates the good transformation of PbO in Chernozem. The features of XANES spectra indicate different orbital transitions in the electron shells of Pb 2+ ions for monoxide (PbO) and soluble salt (Pb(NO 3 ) 2 ), which affect the ion properties and determine the individual structure of the coordination sphere. The analysis of XANES revealed that sorption of Pb in the soil samples and in the samples of mineral phases does not change its bond valence. Conclusions The increased degree of soil contamination with Pb is accompanied by decreasing the stable connection between metal and soil components. Lead ions in bentonite, kaolinite, hydromuscovite, gibbsite, and calcite are incorporated in the positions of the inner-sphere complex replacing some aluminum ions in the octahedral sites. This results in changes the Pb-O distances in Pb-bearing octahedrons. We may suggest that Pb 2+ is also sorbed by dimer (Pb-Pb) silicate and/or aluminum groups. The structure of adsorbent surface plays the key role in the sorption of Pb 2+ by mineral phases.

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Section: Sequential Extractive Fractionationmentioning

confidence: 93%

Section: Sample Descriptionmentioning

confidence: 99%

Comprehensive study of Pb (II) speciation in soil by X-ray absorption spectroscopy (XANES and EXAFS) and sequential fractionation

et al. 2015

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“…The total content of HMs in the soils of plots 9 and 10, which situated in 15-20 km away from the NPS, was close to their regional background levels: Pb 4.2; Zn 26-28; Cd 0.2-0.3; Cr 104-106; Cu 3-6; Ni 38-39 mg/kg (Mandzhieva et al, 2014b;Minkina et al, 2013). In spite of the proximity of the Novocherkassk city to plots 9 and 10 its effect on the metal concentration in soil was not established.…”

Section: Distributions Of Heavy Metals In Soils Of Monitoring Plots Imentioning

confidence: 75%

Assessing the effect of heavy metals from the Novocherkassk power station emissions on the biological activity of soils in the adjacent areas

Minnikova

Денисова

Mandzhieva

et al. 2017

Journal of Geochemical Exploration

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“…To assess the HM affinity to chemical fractions a wide range of specially developed indices is used (Supplementary Materials Table S1). Among the single-element factors, the most common are: the percentage of HMs chemical fraction in the total content (%F) or percent of the sum (PFS) [86], individual contamination factor (ICF) [87], mobility factor (MF) [88], bioavailability factor (BF) [89], mobility coefficient (MC) [90], stability coefficient (SC) [90], protecting coefficient (PC) [91], anthropogenic signal index (ASI) [92], risk assessment code (RAC) [93]. Among the multi-element indices the most common are: bioavailable metal index (BMI) [94], global contamination factor (GCF) [87], global risk index (GRI) [70].…”

Section: Assessment Of Solid Components Of the Environment Pollution With Hms' Chemical Fractionsmentioning

confidence: 99%

Integrated Assessment of Affinity to Chemical Fractions and Environmental Pollution with Heavy Metals: A New Approach Based on Sequential Extraction Results

Vodyanitskii

Власов

2021

IJERPH

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To assess the affinity degree of heavy metals (HMs) to geochemical phases, many indices with several limitations are used. Thus, this study aims to develop a new complex index for assessing contamination level and affinity to chemical fractions in various solid environmental media. For this, a new integrated approach using the chemical affinity index (CAF) is proposed. Comparison of CAF with %F on the literature examples on fractionation of HMs from soils, bottom sediments, atmospheric PM10, and various particle size fractions of road dust proved a less significant role of the residual HMs fraction and a greater contribution of the rest of the chemical fractions in the pollution of all studied environments. This fact is due to the normalization relative to the global geochemical reference standard, calculations of contribution of an individual element to the total pollution by all studied HMs, and contribution of the particular chemical fraction to the total HMs content taken into account in CAF. The CAF index also shows a more significant role in pollution and chemical affinity of mobile and potentially mobile forms of HMs. The strong point of CAF is the stability of the obtained HM series according to the degree of chemical affinity and contamination. Future empirical studies are necessary for the more precise assessment of CAF taking into account the spatial distribution of HMs content, geographic conditions, geochemical factors, the intensity of anthropogenic impact, environmental parameters (temperature, humidity, precipitation, pH value, the content of organic matter, electrical conductivity, particle size distribution, etc.). The combined use of CAF along with other indices allows a more detailed assessment of the strength of HMs binding to chemical phases, which is crucial for understanding the HMs’ fate in the environment.

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Fractional and group composition of zinc and lead compounds as an indicator of the environmental status of soils

Cited by 21 publications

References 8 publications

Comprehensive study of Pb (II) speciation in soil by X-ray absorption spectroscopy (XANES and EXAFS) and sequential fractionation

Comprehensive study of Pb (II) speciation in soil by X-ray absorption spectroscopy (XANES and EXAFS) and sequential fractionation

Assessing the effect of heavy metals from the Novocherkassk power station emissions on the biological activity of soils in the adjacent areas

Integrated Assessment of Affinity to Chemical Fractions and Environmental Pollution with Heavy Metals: A New Approach Based on Sequential Extraction Results

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