Welding is found in many industries. It is a method of joining metal parts by melting the pieces and filling the joint with molten metal. This requires high temperatures of 3,000 - 25,000oC.
The high temperatures needed for welding results in many toxic materials being released into the air. The source of the toxic materials includes the base metals being welded, electrode metal, flux material, coatings, residues, oils, rust inhibitors, solvent- based paints, and primers on the base metal. This airborne ...