551,816 659,996 662,448 566,594 Steel Dust Generated for Zinc Normalized against metric tons of ferrous+non ferrous scrap 0.132 0.140 0.142 0.141 0.133 Schnitzer facilities recover and recycle mercury switches, tires, fluids, lead-acid and EV batteries, catalytic converters, and other components from end-of-life vehicles and appliances.