Quantification of historical dust exposures in the diatomaceous earth industry.

@article{Seixas1997QuantificationOH,
  title={Quantification of historical dust exposures in the diatomaceous earth industry.},
  author={Noah S. Seixas and Nicholas J. Heyer and E A Welp and Harvey Checkoway},
  journal={The Annals of occupational hygiene},
  year={1997},
  volume={41 5},
  pages={
          591-604
        }
}
Quantitative estimates of dust exposure in a diatomaceous earth (DE) mining and milling operation have been derived based on air sampling records for the period 1948-1988. A total of 6395 records was included in the analysis. Conversion of results obtained by particle counting, expressed as millions of particles per cubic feet (mppcf) of gravimetrically from a filter cassette and expressed as mg m-3 total, were converted to mg m-3 respirable dust using a conversion factor derived from data… CONTINUE READING
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