Welding aerosol as the source of hazard to health technogenic nano - and microparticles: granulometric analysis

The first results of research the dimensional structure of particles arising in the welding process by means of laser granulometric method are given in work. It is shown that a welding aerosol - the extremely hazard to human and animal health a source nano - and microdimensional particles. The particle size distribution was in microrange from 1 to 10 microns and in made to 100%. It is shown that in 9 cases from 28 when using the different modes of welding, variability of the applied electrodes and the welded materials allocation of aerosol with particles in the nanorange is observed (from 45,5 to 99,4%).