The hazardous metals that first come to mind related to welding and cutting are lead, chromium, zinc and perhaps beryllium. Manganese doesn’t have the same recognition in terms of risk in the general population.
Current safety standards may not protect workers adequately
January 16, 2017
Welders exposed to airborne manganese at estimated levels below federal occupational safety standards exhibit neurological problems similar to Parkinson’s disease, according to new research at Washington University School of Medicine in St. Louis. Further, the more they are exposed to manganese-containing welding fumes, the faster the workers’ signs and symptoms worsen.
Welding fumes are composed of metals and most fumes contain a small percentage of manganese. There is a concern by workers, employers, and health professionals about potential neurological effects associated with exposure to manganese in welding fumes.