[Old English lēad]
SYMB: Pb A metallic element whose compounds are poisonous; atomic weight (mass) 207.2, atomic number 82, specific gravity 11.35. Accumulation and toxicity occur if more than 0.5 mg/day is absorbed. Any level of lead in the blood is abnormal. Most cases of lead poisoning occur in children who live in homes in which the paint contains lead. Children who eat the paint develop signs of lead toxicity.
SYN: SEE: plumbum
SEE: acute lead encephalopathy; SEE: acute lead poisoning; SEE: chronic lead poisoning; SEE: pica
CAS # 7439-91-0
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