Elemental Abundance Variation with Particle Size in Aerosols from Welding Operations

Roland Akselsson, Gerd Johansson, Klas Malmqvist, Jan Frismark, Thomas B Johansson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

The effect of airborne particulate matter on human health is today of considerable research interest. Essential parameters include elemental composition sampling with low pressure cascade impactors and analysis by particle induced x-ray emission spectroscopy (PIXE). It is shown that the aerosol generated by arc welding operations is several orders of magnitude denser than aerosols in ambient air. Most of the mass is found on particles between 0.1 and 1µm diameter, but the size distribution differs from one welding technique to another. The relative composition of the aerosol is found to differ significantly from that of both the welding piece and the electrode indicating the presence of fractionation of the type indicated in this work in designing electrodes and welding pieces to minimize the health hazards associated with the welding.
Original languageEnglish
Title of host publicationProceedings of the Second International Conference on Nuclear Methods in Environmental Research
Pages395-401
Number of pages7
Publication statusPublished - 1974
EventThe Second International Conference on Nuclear Methods in Environmental Research - Columbia, Missouri, United States
Duration: 1974 Jul 291974 Jul 31

Conference

ConferenceThe Second International Conference on Nuclear Methods in Environmental Research
Country/TerritoryUnited States
CityColumbia, Missouri
Period1974/07/291974/07/31

Subject classification (UKÄ)

  • Production Engineering, Human Work Science and Ergonomics
  • Subatomic Physics
  • Social Sciences Interdisciplinary

Free keywords

  • welding aerosols
  • elemental composition
  • size fractions
  • PIXE
  • cascade impactor

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