Carbon Monoxide Headquarters
Toxic Solids, Dr. D. Penney
Lead
Epidemiology:
Poisoning is usually chronic
Mean blood Pb level for Americans aged 1-74 continues to decrease -
..... 12.8 ug/dL 1976 - 80
..... 2.9 ug/dL 1988-91
..... 2.3 ug/dL in recent data
Children living in pre-1946 housing had an 8.6% rate of lead poisoning; 4.6% 1946-73; 1.6% post-1973 housing.
CDC data (1997) indicates approx. 890,000 American children have Pb levels =/> 10 ug/dL
Poisoning rates higher among black (11.2%) and Mexican-American (4%) than among white children (2.3%)
8.0% of low-income children are lead poisoned compared with 1.9% (middle-) and 1.0% (high-income) children
...... last changed 05/14/00
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