MEASURING TOTAL AND FINE DUST PARTICLE LEVELS AT PLACES OF EMPLOYMENT

GESAMT- UND FEINSTAUBMESSUNGEN AM ARBEITSPLATZ

DUST PARTICLE LEVELS WERE FIRST MEASURED IN WITWATERSRAND SOUTH AFRICA WITH THE AID OF FILTERS (1912-1917). SOON AFTERWARDS IT WAS DISCOVERED THAT THIS METHOD OF MEASUREMENT COULD NOT BE APPLIED TO THE ANALYSIS OF DUST PARTICLES ABSORBED BY AND THEREFORE POTENTIALLY HARMFUL TO HUMAN LUNGS. MEASUREMENT TECHNOLOGY STEADILY IMPROVED FROM THIS TIME AND A SELECTIVE DUST ANALYSIS TEST WAS INTERNATIONALLY AGREED UPON IN 1950. THIS TEST YIELDED DUST SAMPLES CONTAINING AN ACCURATE DISTRIBUTION OF PARTICLE SIZES CAPABLE OF BEING EXPRESSED BY FORMULA. IT WAS SUGGESTED THAT A SELECTIVE APPARATUS FOR TAKING SAMPLES SHOULD BE CONVERTED IN SUCH A WAY THAT IT YIELDED DUST SAMPLES WITH A DISTRIBUTION OF PARTICLE SIZES CORRESPONDING TO THAT FOUND IN HUMAN LUNGS. THE AUTHOR QUOTES RESULTS FROM 199 COMPARATIVE DOUBLE MEASUREMENTS OBTAINED AND ASSESSED AT 13 PLACES OF EMPLOYMENT INVOLVED EITHER IN THE TAR AND PITCH INDUSTRY OR IN ROAD CONSTRUCTION. ALL THESE TEST RESULTS WERE OBTAINED AND MATHEMATICALLY EVALUATED WITH THE CZECHOSLOVAKIAN DP 50 OR WEST GERMAN BAT I DUST MEASURING APPARATUSES.

Language

  • German

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Filing Info

  • Accession Number: 01302788
  • Record Type: Publication
  • Source Agency: Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV)
  • Files: ITRD
  • Created Date: Nov 21 2010 8:48AM