Lead finds its way into modern life in many forms. A large proportion of the lead used today serves the automobile industry in components such as storage batteries, radiators and solder for joints. Lead is an important part of chemical tank liners and of radiation shields in telephone and power cable conduit. It also is used in solder for plumbing and some paints, especially those for ships where corrosion can be significant problem. Bullets, pottery, crystal glassware, wire and stained glass windows all may require lead.
Most industrial exposure is from breathing inorganic lead dust and fumes.
Eating, drinking and smoking on the work site or carelessly handling contaminated objects can result in unintentional exposure to lead. Lead stays in the blood about a month and in soft tissues for several months, it can remain in the bones for decades, a potent poison, it affects the brain and nervous system, reproductive capabilities, the kidneys, the digestive system, and the ability to make blood. Chronic poisoning is more common in industrial settings where small amounts of lead gradually can build in the body and result in temporary or permanent damage. An elevated blood lead level indicates that lead is building in the body faster than it can be eliminated. There is a wide range of symptoms, many of which imitate other diseases.