Old household appliances contain various toxic, harmful, and hazardous substances, such as lead, cadmium, mercury, hexavalent chromium, aluminum, brominated flame retardants, freon, and polyvinyl chloride plastics. These dangerous materials, along with other heavy metals and halogen chemicals like zinc, silver, zirconium, and nickel, can turn old appliances into “environmental hazards” if not disposed of correctly. …