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| | NIEHS Press Release - Very Low Lead Levels Linked with IQ Deficits, According to NEJM Study - April 16, 2003 |
 | | At the same time, the study found that an increase in blood lead from 10 to 30 micrograms per deciliter is associated with only a small additional decline in IQ. |
 | | Under this definition, more than one in every 50 children in the United States between the ages of 1 and 5 years is adversely affected by lead, which has been linked to lowered intelligence, behavioral problems, and diminished school performance. |
 | | The study followed 172 children in the Rochester, N.Y., area whose blood lead was assessed at 6, 12, 18, 24, 36, 48, and 60 months, and who were tested for IQ at both 3 and 5 years of age. |
| www.niehs.nih.gov /oc/news/leadiq.htm (729 words) |
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