Quantitative assessment of zinc vapors harmful to humans during welding operations of galvanized products

Abstract

The issue of ensuring the safety of industrial workers is one of the most important at the moment. During welding operations, harmful factors of production affect the personnel. In the process of work related to electric welding and cutting of metals, iron and other metal dust, gases, silicon dioxide are released, which leads to the formation of pneumoconiosis of electric welders and gas cutters. The composition and amount of highly dispersed dust formed depends on the type of welding, the composition of the welding materials used and the metals being welded, the mode of the welding process and other factors. The most dangerous for personnel are the release of zinc vapor during welding of galvanized products. As a result of such exposure, significant damage may be caused to the health of personnel. Inhalation of zinc vapor causes so-called "zinc" or "foundry fever". This paper presents the results of studies to determine the amount of harmful substances during contact and electric arc welding. During the study, the amount of harmful substances released during welding of parts with a protective coating was determined. Only the provision of protective measures can reduce the harmful effects of this factor on workers.