Identification of nanominerals and nanoparticles in burning coal waste piles from Portugal

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 mater...

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Bibliographic Details
Published in:The Science of the total environment 2010-11, Vol.408 (23), p.6032-6041
Main Authors: Ribeiro, Joana, Flores, Deolinda, Ward, Colin R., Silva, Luis F.O.
Format: Article
Language:English
Subjects:
Applied sciences
Atmospheric pollution
Carbon - analysis
Coal
Coal - analysis
Coal mining wastes
Combustion
Combustion and energy production
Condensation
Douro Coalfield
Environmental Monitoring
Exact sciences and technology
Health
Human health
Microscopy, Electron, Scanning
Microscopy, Electron, Transmission
Minerals - analysis
Nanomaterials
Nanoparticles - analysis
Nanoparticles - ultrastructure
Nanostructure
Particle Size
Piles
Pollution
Pollution sources. Measurement results
Portugal
Scanning electron microscopy
Spectrometry, X-Ray Emission
Trace elements
Waste Products - analysis
Wastes
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Summary: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.
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2010.08.046