Measure B3: Distribution of Concentrations of Lead in Blood in Children Ages 1-5

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• In 2003-2006, the concentration of lead in blood at the 90th percentile in children ages 1-5 was 3.5 µg/dL, meaning that 10 percent of children had blood lead levels above this concentration and 90 percent had blood lead levels below it.
• In 2003-2006, the median blood lead level of children ages 1-5 was 1.6 µg/dL, meaning that 50 percent of children had blood lead levels above this concentration and 50 percent had blood lead levels below it.

Related Measures:

• Criteria Air Pollutants (lead)
• Drinking Water (lead)
• Neurodevelopmental Disorders
• Lead in California School