Sources include: Lead smelting and refining, battery manufacturing, rubber product manufacturing, pipe filler, plumbers, steel welders or cutters, and plastic manufacturing. More than one million workers in over 100 different jobs are exposed to lead each day. When working with lead it is important to protect oneself. First, follow all company safety procedures. They are there to protect the health of the company's employees and families. Second, always wash your hands and face before eating. Be sure to eat in designated areas only. Third, wear all required protective equipment and clothing. Keep street clothes and shoes separate and away from the lead source. Lead dust carried home from work can expose your family to lead. Shower before leaving work to rid yourself of lead dust. Leave all work clothes at work.