The occurrence of hazardous volatile elements and nanoparticles in Bulgarian coal fly ashes and the effect on human health exposure

Luis F.O. Silva; Kátia DaBoit; Carlos H. Sampaio; André Jasper; Maria L. Andrade; Irena J. Kostova; Frans B. Waanders; Kevin R. Henke; James C. Hower

doi:10.1016/j.scitotenv.2011.11.012

The occurrence of hazardous volatile elements and nanoparticles in Bulgarian coal fly ashes and the effect on human health exposure

Luis F.O. Silva, Kátia DaBoit, Carlos H. Sampaio, André Jasper, Maria L. Andrade, Irena J. Kostova, Frans B. Waanders, Kevin R. Henke, James C. Hower

Earth and Environmental Sciences

Research output: Contribution to journal › Article › peer-review

91 Scopus citations

Abstract

Low-rank, high-mineral matter Bulgarian coals were studied using a variety of chemical, optical, and electron beam methods. The larger fly ash carbon phases include charred carbons in contrast to coked carbons present in the fly ashes of bituminous-coal-derived fly ashes. Nanoscale carbons include multi-walled carbon nanotubes (MWCNTs) encapsulating Hg, Se, and As, among other elements. In addition to the glass which dominates the fly ash, relatively coarse 'rock fragments', consisting of an unmelted to partially melted core surrounded by a glassy rim, are present in the fly ash. Nano-scale minerals can contain hazardous elements and, along with metal-bearing multiwalled nanotubes, can be a path for the entry of hazardous particles into the lungs and other organs.

Original language	English
Pages (from-to)	513-526
Number of pages	14
Journal	Science of the Total Environment
Volume	416
DOIs	https://doi.org/10.1016/j.scitotenv.2011.11.012
State	Published - Feb 1 2012

Bibliographical note

Funding Information:
The research for this study was carried out with support from the IPADHC, funded in part by the IPADHC and the Brazilians contracted Scientifics. Andre Jasper and Carlos H. Sampaio thanks FAPERGS and CNPq. Luis F. O. Silva and Kátia DaBoit benefited from a scholarship financed by CNPq (projects: 573531/2008-0 and 550996/2010-9 ). The comments and helpful criticisms of anonymous reviewers and the support of the Editor, Dr. Pavlos Kassomenos, have considerably improved the original manuscript and are also gratefully acknowledged.

Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.

Keywords

Fly ash
Low-rank coal
Nanotubes
Toxicity

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.scitotenv.2011.11.012

Cite this

Silva, L. F. O., DaBoit, K., Sampaio, C. H., Jasper, A., Andrade, M. L., Kostova, I. J., Waanders, F. B., Henke, K. R., & Hower, J. C. (2012). The occurrence of hazardous volatile elements and nanoparticles in Bulgarian coal fly ashes and the effect on human health exposure. Science of the Total Environment, 416, 513-526. https://doi.org/10.1016/j.scitotenv.2011.11.012

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The occurrence of hazardous volatile elements and nanoparticles in Bulgarian coal fly ashes and the effect on human health exposure

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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