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. 2006 Dec 18;115(4):630–635. doi: 10.1289/ehp.9389

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Percentages of children with blood lead concentrations ≥ 10.0 μg/dL by age group, race, and season. Hispanic children: 1–3 years of age, n = 29; 4–8 years of age, n = 22. African-American children: 1–3 years of age, n = 49; and 4–8 years of age, n = 42. No Hispanic child 1–3 years of age had an elevated blood lead concentration during the winter, but one had an elevated blood lead concentration during the summer. No Hispanic child 4–8 years of age had an elevated blood lead concentration during the winter or summer.