Distribution of mineralogical phases in dusts collected at different workshops

J. Hlavay, G. Wesemann

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Dusts were collected by personal sampler on membrane filter from different workplaces. Respirable size (< 5 μm) and coarse fractions of airborne dust were separated by a cyclone. Only the respirable fraction can penetrate into the deeper portions of the lung, therefore, the distribution of toxic minerals on the two fractions should be determined. Asbestos, quartz, calcite and albite content of dust was determined by IR-spectroscopy. Threshold limit values (TLV) measured for coal-mine workers were much higher than those which are permitted. Quartz concentrated in the coarse fractions while calcite usually accumulated in the respirable fraction. In case of dusts collected at grave-stone polishing cutting workshop, the amount of albite varied between 30 and 70 m/m% and no direct tendency was found concerning the distribution of albite in the two fractions.

Original languageEnglish
Pages (from-to)33-42
Number of pages10
JournalScience of the Total Environment, The
Volume136
Issue number1-2
DOIs
Publication statusPublished - Aug 15 1993

Keywords

  • IR-spectroscopy
  • albite
  • asbestos
  • calcite
  • quartz
  • respirable dust
  • scanning electron microscopy

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

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