Figure A
Geometric mean for blood lead levels for children 1–5 years old (in μg/dL)
| Year | Mean blood lead levels (μg/dL) |
|---|---|
| 1976 | 14.9 |
| 2006 | 1.7 |
Source: Centers for Diesase Control and Prevention. 2007. National Center for Environmental Health. Children's Blood Lead Levels in the United States.
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