Identification of nanominerals and nanoparticles in burning coal waste piles from Portugal |
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| Authors: | Joana Ribeiro Colin R. Ward |
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| Affiliation: | a Centro de Geologia, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugalb Departamento de Geociências, Ambiente e Ordenamento do Território, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugalc School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australiad Catarinense Institute of Environmental Research and Human Development, IPADHC, Capivari de Baixo, Santa Catarina, Brazil |
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| Abstract: | A range of carbon nanoparticles, agglomerates and mineral phases have been identified in burning coal waste pile materials from the Douro Coalfield of Portugal, as a basis for identifying their potential environmental and human health impacts. The fragile nature and fine particle size of these materials required novel characterization methods, including energy-dispersive X-ray spectrometry (EDS), field-emission scanning electron microscope (FE-SEM), and high-resolution transmission electron microscopy (HR-TEM) techniques. The chemical composition and possible correlations with morphology of the nanominerals and associated ultra-fine particles have been evaluated in the context of human health exposure, as well as in relation to management of such components in coal-fire environments. |
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| Keywords: | Douro Coalfield Coal mining wastes Trace elements Combustion Condensation Human health |
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