[Risk in welding operations. Etiopathogenetic, preventive and legislative considerations]

This work classifies different types of welding procedure, occasional and specific contaminating elements, both of the welding material, and of other possible substances (particularly plastic materials) used in the pre-treating phase. The authors show the risk evaluation factors of the welding operations and, moreover, suggest a diagnostic and prevention program on the exposed subjects. Finally they include a table of references on italian law concerning the contaminating substances produced by welding processes.