Mineralogy and Weathering of Smelter-Derived Spherical Particles in Soils: Implications for the Mobility of Ni and Cu in the Surficial Environment

Lanteigne, Sonia; Schindler, Michael; McDonald, Andrew M.; Skeries, Kristina; Abdu, Yassir A.; Mantha, Nathalie M.; Murayama, Mitsuhiro; Hawthorne, Frank C.; Hochella, Michael F.

doi:10.1007/s11270-012-1135-3

Cited by 57 publications

(35 citation statements)

References 58 publications

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“…When released to the atmosphere by smelting facilities, they are cooled in few seconds and remain essentially amorphous. These particles are quite similar to those studied by Lanteigne et al [56] which were amorphous, porous, and which contained metals such as Ni. Furthermore, in NIQ 1, the presence of these spherical particles in significant quantities is likely to explain the presence of amorphous material in XRD diffractogram.…”

Section: Nickel Bearing Phasessupporting

confidence: 84%

Colloids and suspended particulate matters influence on Ni availability in surface waters of impacted ultramafic systems in Brazil

Zelano¹,

Sivry²,

Quantin³

et al. 2013

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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International audienceThe overall objective of this work was to assess the modification of Ni availability and lability consequently to anthropic activity. Surface waters were collected in two ultramafic complexes (Barro Alto and Niquelandia) from Goias State (Brazil) impacted by mining and metallurgical activities. For the nearly first time, Isotopic Exchange Kinetic technique (IEK) was performed on these natural water samples to quantify the pool of isotopically exchangeable Ni from the suspended particulate matter (SPM) in water, defined here as E-Ni(W). The SPM mineralogy was investigated by X-Ray Diffraction (XRD), Scanning and Transmission Electron Microscopy (SEM and TEM). This allowed to establish the link between Ni availability and its solid speciation. Goethite, chlorite, talc and serpentine were identified as the main Ni bearing phases in SPM far from metallurgy (Barro Alto site) while in samples located in the area influenced by metallurgy (Niquelandia) Ni was mainly associated to spherical micrometric particles, related to fly ash produced by the ore combustion. In Niquelandia samples 4,1, value was found ranging between 2.4 and 565 mu g L-1, while in Barro Alto E-Ni(W) was 62 mu g L-1, which corresponds to E-Ni values of 49,000 and 2350 mg kg(-1), in SPM from Niquelandia and Barro Alto, respectively. Moreover, IEK experiments highlighted differences in kinetic of Ni exchanges: the maximum E-Ni(W) value was reached after only 19 hours of interaction in Barro Alto sample, while in Niquelandia ones E-Ni(W) hardly reached 70 to 95% of the maximum after the same period of time. On the one hand, both the low proportion and high velocity of Ni exchanges observed in Barro Alto sample may be attributed to surface complexation on talc, serpentine, chlorite and goethite. On the other hand, both the higher proportion of exchangeable stock and slower isotopic exchanges should be mostly attributed in Niquelandia samples to Ni interaction with the anthropogenic spherical and porous particles of Fe-Mg-Si-Al composition, related to FBA released by metallurgic activity

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Section: Nickel Bearing Phasessupporting

confidence: 84%

Colloids and suspended particulate matters influence on Ni availability in surface waters of impacted ultramafic systems in Brazil

Zelano¹,

Sivry²,

Quantin³

et al. 2013

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…In the Sudbury region, smelter-derived particulate matter trapped in the silica-rich matrix consists largely of nanometer-to micrometer-sized spherical particulates composed of carbon soot, minerals of the spinel group, and high-temperature silicates such as minerals of the olivine and pyroxene groups [2,3,15,16]. Coatings here are found up to tens of kilometers from the sites of past smelting activities [8].…”

Section: Black Rock Coatings Near Sudbury Base Metal Smeltersmentioning

confidence: 99%

Detection and Mapping of Black Rock Coatings Using Hyperion Images: Sudbury, Ontario, Canada

Leverington

Schindler

2016

Remote Sensing

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Base metal smelting activities can produce acidic rain that promotes vegetation loss and the development of black coatings on bedrock. Such coatings can form over large areas and are among the most prominent long-term vestiges of past smelting activities. In this study, multispectral images derived from Hyperion reflectance data were evaluated with regard to their utility in the discrimination and mapping of black rock coatings near Sudbury. Spectral angle mapper (SAM) classifications generated on the basis of image-derived endmember spectra could not be used to properly identify major exposures of coated bedrock without also producing substantial confusion with uncoated classes. Neural network and maximum likelihood classifications produced improved representations of the spatial distribution of coated bedrock, though confusion between coated and uncoated classes is problematic in most outputs. Maximum likelihood results generated using a null class are noteworthy for their effectiveness in highlighting exposures of coated bedrock without substantial confusion with uncoated classes. Although challenges remain, classification results confirm the potential of remote sensing techniques for use in the worldwide detection, mapping, and monitoring of coating-related environmental degradation in the vicinities of base metal smelters.

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“…Metal contamination can be found in soils (e.g. Haneberg, Austin, and Brandvold 1993;Barcan and Kovnatsky 1998;Lanteigne et al 2012;Lanteigne, Schindler, and McDonald 2014), animal tissues (e.g. Bagatto and Alikhan 1987;Bagatto and Shorthouse 1996), vegetation (e.g.…”

Section: Formation Of Black Coatings Near Base Metal Smeltersmentioning

confidence: 99%

A Landsat-based study of black rock coatings proximal to base metal smelters, Sudbury, Ontario, Canada

Malcolm

Leverington

Schindler

2015

International Journal of Remote Sensing

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Past emission of metal-bearing particulate matter, sulphur dioxide (SO 2 ), and sulphuric acid by base metal smelters in the Sudbury region led to widespread loss of vegetation, contamination of soils, and formation of black coatings on rock surfaces. These black coatings formed through the incorporation of smelter-borne particulate matter into the partly dissolved uppermost layers of siliceous minerals on exposed rock, and are characterized by high heavy-metal content. This study involved assessment of the reflectance properties of black coatings in the Sudbury region, and determination of the geographic distribution of coatings through supervised classification of reflectance data derived from a Landsat Enhanced Thematic Mapper Plus (ETM+) image. Classifications involved the use of the Spectral Angle Mapper (SAM), Maximum Likelihood, and Feedforward Backpropagation Neural Network algorithms. The reflectance spectra of black coatings in the Sudbury region are relatively flat and featureless, and are characterized by reflectance values less than~13% across the visible, nearinfrared, and short-wave infrared. Spectral properties are similar to those of magnetite, a spinel-group mineral known to be present in Sudbury coatings. The presence of carbon-rich soot particles may be an important influence on the reflectance properties of coatings. SAM classification results are characterized by the widespread mislabelling of uncoated urban and open-pit sites as mantled by black coatings, and neural network results problematically mislabel some uncoated wetland sites as coated. Results generated by the Maximum Likelihood algorithm most usefully depict the distribution of exposed black coatings in the Sudbury region. The mapping of black coatings using remote-sensing methods can provide useful information on the spatial character of environmental degradation in the vicinity of smelters, and should be helpful in the monitoring of environmental recovery where emissions have been reduced or eliminated.

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Mineralogy and Weathering of Smelter-Derived Spherical Particles in Soils: Implications for the Mobility of Ni and Cu in the Surficial Environment

Cited by 57 publications

References 58 publications

Colloids and suspended particulate matters influence on Ni availability in surface waters of impacted ultramafic systems in Brazil

Colloids and suspended particulate matters influence on Ni availability in surface waters of impacted ultramafic systems in Brazil

Detection and Mapping of Black Rock Coatings Using Hyperion Images: Sudbury, Ontario, Canada

A Landsat-based study of black rock coatings proximal to base metal smelters, Sudbury, Ontario, Canada

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