Direct identification of hazardous elements in ultra-fine and nanominerals from coal fly ash produced during diesel co-firing

Kátia Martinello; Marcos L S Oliveira; Fernando A Molossi; Claudete G Ramos; Elba C Teixeira; Rubens M Kautzmann; Luis F O Silva

doi:10.1016/j.scitotenv.2013.10.007

Direct identification of hazardous elements in ultra-fine and nanominerals from coal fly ash produced during diesel co-firing

Sci Total Environ. 2014 Feb 1:470-471:444-52. doi: 10.1016/j.scitotenv.2013.10.007. Epub 2013 Oct 22.

Authors

Kátia Martinello¹, Marcos L S Oliveira², Fernando A Molossi³, Claudete G Ramos³, Elba C Teixeira⁴, Rubens M Kautzmann³, Luis F O Silva⁵

Affiliations

¹ Environmental Science and Nanotechnology Department, Institute of Environmental Research and Human Development, IPADHC, Capivari de Baixo, Santa Catarina, Brazil.
² Environmental Science and Nanotechnology Department, Institute of Environmental Research and Human Development, IPADHC, Capivari de Baixo, Santa Catarina, Brazil; Laboratory of Environmental Researches and Nanotechnology Development, Centro Universitário La Salle, Mestrado em Avaliação de Impactos Ambientais, Victor Barreto, 2288 Centro 92010-000, Canoas, RS, Brazil.
³ Laboratory of Environmental Researches and Nanotechnology Development, Centro Universitário La Salle, Mestrado em Avaliação de Impactos Ambientais, Victor Barreto, 2288 Centro 92010-000, Canoas, RS, Brazil.
⁴ Fundação Estadual de Proteção Ambiental Henrique Luis Roessler/RS, Fundação Estadual de Proteção Ambiental Henrique Luis Roessler-RS, Rua Carlos Chagas 55/802, Centro 90030-020 - Porto Alegre, RS, Brazil.
⁵ Environmental Science and Nanotechnology Department, Institute of Environmental Research and Human Development, IPADHC, Capivari de Baixo, Santa Catarina, Brazil; Laboratory of Environmental Researches and Nanotechnology Development, Centro Universitário La Salle, Mestrado em Avaliação de Impactos Ambientais, Victor Barreto, 2288 Centro 92010-000, Canoas, RS, Brazil. Electronic address: felipeqma@hotmail.com.br.

PMID: 24157478
DOI: 10.1016/j.scitotenv.2013.10.007

Abstract

This study has provided an initial assessment of the environmental impacts and potential health effects associated with coal fly ash produced during diesel co-firing. Many hazardous elements that are typically detected by multifaceted chemical characterization by XRD, petrology, FE-SEM/EDS, and HR-TEM/SEAD/FFT/EDS in ultra-fine compounds and nanominerals from the co-fired coal fly ashes (CFAs). It provided an in-depth understanding of coal ash produced during diesel co-firing. Several of the neoformed ultra-fine compounds and nano-minerals found in the coal ashes are the same as those commonly associated with oxidation/transformation of aluminosilicates, carbonates, sulphides and phosphates.

Keywords: Fly ash; Hazardous elements; Human health exposure; Nanominerals.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Coal Ash / chemistry*
Environmental Monitoring*
Minerals / analysis*
Nanoparticles / analysis*
Particulate Matter / analysis*
Power Plants
Risk Assessment

Substances

Coal Ash
Minerals
Particulate Matter