Tellurium Content of Marine Manganese Oxides and Other Manganese Oxides

Lakin, H. W.; Thompson, C. E.; Davidson, D. F.

doi:10.1126/science.142.3599.1568

Cited by 12 publications

(1 citation statement)

References 4 publications

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“…Ferromanganese crusts deserve a comment because of their importance in the tellurium literature. The presence of tellurium in oceanic sediments was first reported in 1963 (Lakin et al 1963). Since then, tellurium in ferromanganese crusts has been the object of renewed attention (Hein et al 2003;Baturin 2007), either to explain ocean concentration levels and element speciation or as a potential mining source.…”

Section: Tellurium Hotspotsmentioning

confidence: 99%

Tellurium in the environment: current knowledge and identification of gaps

Filella¹,

Reimann²,

Biver³

et al. 2019

Environ. Chem.

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Environmental contextTellurium, a chemical element increasingly being used in new technologies, is an emerging contaminant. Our understanding of tellurium’s environmental behaviour, however, is poor, with critical knowledge gaps such as its distribution in the various environmental compartments and the environmental fluxes associated with mining, usage and disposal. Significant progress in these areas requires the development of robust analytical methods that are sufficiently sensitive to provide data at environmentally relevant concentrations. AbstractTellurium has recently become a ‘technology-critical element’ increasingly used in new applications. Thus, potential environmental impacts need to be evaluated. This, in turn, requires knowledge of its typical concentrations in the environment along with better understanding of the chemical processes governing its environmental behaviour. We evaluate the current situation of our understanding of tellurium in the environment and identify the areas where improvements in measurement technology are most needed. The comprehensive evaluation of published data described in this study shows that values for tellurium concentrations in the different environmental compartments are scarce, particularly in the case of natural waters where reliable estimates of tellurium concentrations in seawater and freshwater cannot even be produced. Data in air are even less abundant than for natural water. Concentration data do exist for soils suggesting a predominant geological origin. Some urban soil surveys and lake sediment data close to tellurium contamination sources point to possible effects on the element’s distribution as a result of human activity; long-range atmospheric transport remains to be proved. Current knowledge about tellurium behaviour in the environment is strongly hindered by analytical difficulties, with insufficiently low analytical detection limits being the main limitation. For instance, ‘dissolved’ concentrations are well below current analytical capabilities in natural water and often require pre-concentration procedures that, for the moment, do not provide consistent results; solid samples require complex mineralisation procedures that often exclude tellurium from routine multielement studies. In general, the use of available measuring techniques is far from straightforward and needs particular expertise. Overcoming the current analytical limitations is essential to be able to progress in the field.

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Section: Tellurium Hotspotsmentioning

confidence: 99%