Some materials are so commonplace that we take them for granted. One of those materials is a grayish metal that has been with us for thousands of years. That metal is lead, still one of the world's most useful substances, and one that never ceases to find a role in human society.         Lead has the atomic symbol of Pb (for plumbum, lead in Latin). The atomic number for lead is 82 and the atomic mass is 207.19 …showed first 75 words of 868 total…

…showed last 75 words of 868 total…to note that young children absorb 50% of a lead ingestion, while adults absorb only 10%.          What we can do to prevent lead poisoning: 1. Do not burn lead debris. 2. Place lead debris in a six mil plastic bag. 3. For storage (of less then 48 hours), place storage bags in a secure area, away from children and animals. 4. Lead materials and debris must be transported in a covered vehicle to a lined municipal landfill in accordance to state regulations.