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Sartori Jeunon Gontijo E, Santos Costa Monteiro A, Tonello PS, Roeser HMP, Friese K, Rosa AH. Analyses of colloidal, truly dissolved, and DGT-labile metal species and phosphorus in mining area surrounded by tailing dams using self-organising maps. CHEMOSPHERE 2022; 303:135003. [PMID: 35595112 DOI: 10.1016/j.chemosphere.2022.135003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/13/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
The knowledge of size-distribution and lability of metals and nutrients in freshwater systems is important for estimation of the ecological effects of mining. However, it is still limited in several mining areas such as the Quadrilátero Ferrífero (Brazil) which was severely polluted by the collapse of the Fundão tailings dam in November 2015. In this study, results of an investigation from 2014 using a neural network named self-organising map (SO-Map) into the conditions of selected trace metals that are of particular importance to mining areas (Cr, Cu, Co, Mn, Ni, Pb, Zn) are presented. Additionally, P was considered by its high importance as a nutrient and sites later affected by the dam burst were also included by chance. Water samples were collected at six sites in dry and rainy seasons and filtered and ultrafiltered for determination of total dissolved (<0.45 μm) and truly dissolved (<1 kDa) fractions. Diffusive gradients in thin films (DGT) devices were deployed in situ for determination of the DGT-labile fraction. All data were analysed using SO-Map and Spearman's rank correlation. Phosphorus in the Carmo River occurred mainly in the truly dissolved and DGT-labile fractions. The higher amounts of this element in the river water (up to 263 μg L-1 of total P) might be related to untreated sewage discharge. Moreover, the concentrations of other trace metals (Mn, Cu, Co, Ni, Zn) were high, even under the "natural" conditions (before the dam failure) due to natural and anthropogenic factors such as local lithology and mining.
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Affiliation(s)
- Erik Sartori Jeunon Gontijo
- Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, 18087-180, Sorocaba, SP, Brazil.
| | - Adnívia Santos Costa Monteiro
- Federal University of Sergipe (UFS), Campus São Cristóvão, Av. Marechal Rondon, s/n, Jardim Rosa Elze, 49100-000, São Cristóvão, SE, Brazil.
| | - Paulo Sérgio Tonello
- Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, 18087-180, Sorocaba, SP, Brazil.
| | - Hubert Mathias Peter Roeser
- Federal University of Ouro Preto (UFOP), Campus Universitário, Morro do Cruzeiro, 354000-000, Ouro Preto, MG, Brazil.
| | - Kurt Friese
- Department of Lake Research, Helmholtz Centre for Environmental Research - UFZ, Brueckstr. 3a, 39114, Magdeburg, Germany.
| | - André Henrique Rosa
- Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, 18087-180, Sorocaba, SP, Brazil.
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Vettorelo SN, Cuéllar M, Ortiz PI, Garay F. Theory of square-wave voltammetry for the analysis of a CE reaction mechanism complicated by the adsorption of the reactant. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113519] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Mota AM, Pinheiro JP, Simões Gonçalves ML. Electrochemical Methods for Speciation of Trace Elements in Marine Waters. Dynamic Aspects. J Phys Chem A 2012; 116:6433-42. [DOI: 10.1021/jp2124636] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. M. Mota
- CQE, Instituto
Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001
Lisboa, Portugal
| | - J. P. Pinheiro
- IBB/CBME, Department
of Chemistry and Pharmacy, Faculty of Sciences and Technology, University of Algarve, 8005-139 Faro, Portugal
| | - M. L. Simões Gonçalves
- CQE, Instituto
Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001
Lisboa, Portugal
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Monticelli D, Pozzi A, Credaro A, Dossi C. An Electroanalytical Approach to the Understanding of Copper Exportation in Glaciated Catchments. ELECTROANAL 2012. [DOI: 10.1002/elan.201100560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Town RM. Adsorptive stripping chronopotentiometry (AdSCP). Part 3: Multi-metal systems. J Electroanal Chem (Lausanne) 2009. [DOI: 10.1016/j.jelechem.2009.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chakraborty P, Zhao J, Chakrabarti C. Copper and nickel speciation in mine effluents by combination of two independent techniques. Anal Chim Acta 2009; 636:70-6. [DOI: 10.1016/j.aca.2009.01.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Revised: 12/17/2008] [Accepted: 01/15/2009] [Indexed: 10/21/2022]
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7
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Town RM, van Leeuwen HP. Adsorptive stripping chronopotentiometry (AdSCP). Part 2: Basic experimental features. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2007.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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van Leeuwen HP, Town RM. Adsorptive stripping chronopotentiometry (AdSCP). Part 1: Fundamental features. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2007.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Sigg L, Black F, Buffle J, Cao J, Cleven R, Davison W, Galceran J, Gunkel P, Kalis E, Kistler D, Martin M, Noël S, Nur Y, Odzak N, Puy J, Van Riemsdijk W, Temminghoff E, Tercier-Waeber ML, Toepperwien S, Town RM, Unsworth E, Warnken KW, Weng L, Xue H, Zhang H. Comparison of analytical techniques for dynamic trace metal speciation in natural freshwaters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2006; 40:1934-41. [PMID: 16570618 DOI: 10.1021/es051245k] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Several techniques for speciation analysis of Cu, Zn, Cd, Pb, and Ni are used in freshwater systems and compared with respect to their performance and to the metal species detected. The analytical techniques comprise the following: (i) diffusion gradients in thin-film gels (DGT); (ii) gel integrated microelectrodes combined to voltammetric in situ profiling system (GIME-VIP); (iii) stripping chronopotentiometry (SCP); (iv) flow-through and hollow fiber permeation liquid membranes (FTPLM and HFPLM); (v) Donnan membrane technique (DMT); (vi) competitive ligand-exchange/stripping voltammetry (CLE-SV). All methods could be used both under hardwater and under softwater conditions, although in some cases problems with detection limits were encountered at the low total concentrations. The detected Cu, Cd, and Pb concentrations decreased in the order DGT > or = GIME-VIP > or = FTPLM > or = HFPLM approximately = DMT (>CLE-SV for Cd), detected Zn decreased as DGT > or = GIME-VIP and Ni as DGT > DMT, in agreement with the known dynamic features of these techniques. Techniques involving in situ measurements (GIME-VIP) or in situ exposure (DGT, DMT, and HFPLM) appear to be appropriate in avoiding artifacts which may occur during sampling and sample handling.
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Affiliation(s)
- Laura Sigg
- Eawag, Swiss Federal Institute for Aquatic Science and Technology, P.O. Box 611, CH-8600 Duebendorf, Switzerland.
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Jansen S, Steffen F, Threels WF, Van Leeuwen HP. Speciation of Co(II) and Ni(II) in anaerobic bioreactors measured by competitive ligand exchange-adsorptive stripping voltammetry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2005; 39:9493-9. [PMID: 16475327 DOI: 10.1021/es050492l] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Competitive ligand exchange-adsorptive stripping voltammetry is applied to speciation analysis of dissolved Ni(II) and Co(II) in an anaerobic bioreactor and similar batch media. Co and Ni speciation in these media can be measured down to concentration levels of ca. 1 nM. Sulfide interference is avoided via removal as H2S. In methanogenic bioreactors, up to 95% of the dissolved Co and Ni is present in strongly bound forms, with complex stabilities > or =10(8)-10(9) and 10(7)-10(8) mol(-1) L, respectively. In effluent from sulfate-reducing bioreactors, Co is also found to be present in a strongly bound form, and up to micromolar levels of strongly complexing excess ligand was detected. The predominant presence of Co and Ni in strong complexes, with concomitant low free dissolved concentrations, is significant for limitation by these elements in anaerobic bioreactors.
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Affiliation(s)
- Stefan Jansen
- Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB Wageningen, The Netherlands.
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van Leeuwen HP, Town RM, Buffle J, Cleven RFMJ, Davison W, Puy J, van Riemsdijk WH, Sigg L. Dynamic speciation analysis and bioavailability of metals in aquatic systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2005; 39:8545-56. [PMID: 16323747 DOI: 10.1021/es050404x] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Dynamic metal speciation analysis in aquatic ecosystems is emerging as a powerful basis for development of predictions of bioavailability and reliable risk assessment strategies. A given speciation sensor is characterized by an effective time scale or kinetic window that defines the measurable metal species via their labilities. Here we review the current state of the art for the theory and application of dynamic speciation sensors. We show that a common dynamic interpretation framework, based on rigorous flux expressions incorporating the relevant diffusion and reaction steps, is applicable for a suite of sensors that span a range of time scales. Interpolation from a kinetic spectrum of speciation data is proposed as a practical strategy for addressing questions of bioavailability. Case studies illustrate the practical significance of knowledge on the dynamic features of metal complex species in relation to biouptake, and highlight the limitations of equilibrium-based models.
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Affiliation(s)
- Herman P van Leeuwen
- Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB Wageningen, The Netherlands
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Van Leeuwen HP, Town RM. Kinetic limitations in measuring stabilities of metal complexes by competitive ligand exchange-adsorptive stripping voltammetry (CLE-AdSV). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2005; 39:7217-25. [PMID: 16201651 DOI: 10.1021/es050367+] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The kinetic limitations of Competitive Ligand Exchange-Adsorptive Stripping Voltammetry, CLE-AdSV, for the determination of very stable metal complexes are explained in detail. For a given type of metal, from a certain lower limit of the complex stability constant, K, the usual simple equilibrium interpretation of CLE-AdSV measurements is not generally valid. By critical assessment of data for natural waters we show that in many cases the reported stability constants appearto derive from nonequilibrium conditions in the bulk sample and hence overestimate the real values. Fe(II) is a special case due to the particular kinetic features of hydroxide as a ligand. Our results call for validation of such data by analysis on the basis of the kinetics involved and/or by independent kinetic-free experimental approaches. Earlier speculations from CLE-AdSV results on very strong ligands and derived features such as the potential bioavailability of trace metals in natural waters require reconsideration.
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Affiliation(s)
- Herman P Van Leeuwen
- Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB Wageningen, The Netherlands
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