Distribution of toxic and radiation components in air particulates.
Sci Total Environ
; 173-174: 283-91, 1995 Dec 01.
Article
em En
| MEDLINE
| ID: mdl-8560225
ABSTRACT
The concentrations of several toxic heavy metals and volatile organic compounds (VOCs) in various types of Hungarian fly-ash fine particulates were investigated by means of instrumental neutron activation analysis, X-ray fluorescence analysis and gas chromatography, coupled with mass spectrometry. Within a power station, particulate samples were taken from the boiler zone (BO), from the electrostatic dust filter chamber (FI) and from the flue-gas at the top of the stack (ST). Enrichment rates of the toxic metals both in FI and ST particulate fractions related to the BO concentrations were calculated to enable the temperature dependence on the adsorption of the toxic components to be studied. In addition, both the total amounts of the VOCs and their partial distributions in accordance with the number of carbon atoms were also studied in fly-ash particulates. From them, 31 organic species were identified and determined. Since Hungarian brown coals have high uranium and thorium contents, the specific radioactivities of the daughter isotopes of both the 232Th and 238U decay series were also measured and are discussed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos Policíclicos
/
Centrais Elétricas
/
Carbono
/
Carvão Mineral
/
Poluentes Atmosféricos
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Poluentes Radioativos do Ar
/
Metais
Idioma:
En
Revista:
Sci Total Environ
Ano de publicação:
1995
Tipo de documento:
Article