Make molds in foundry using MDI, furfuryl alcohol, or amine curing agents
Reclaim scrap metal containing lead, cadmium, beryllium, or mercury
Refine platinum
Smelt or cast lead
Smelt or refine zinc or copper
Use ferromanganese in alloy production
Use mercury to extract gold
Work in potroom at aluminum smelter
Worked in foundry for years with heavy exposure to gases/fumes and mineral dust
Worked in smelter for years with heavy exposures to sulfur dioxide and metal fumes