The article by Kimbrough et al (Pediatrics. 1995;95:550-554) concerning a survey of blood lead levels among children residing near a closed, heavily contaminated lead smelter found that 78 of 490 preschoolers (16%) had blood lead levels at or above the Centers for Disease Control and Prevention action level of 10 µg/dL. By contrast, the prevalence of elevated blood lead levels among all preschool children in the United States is 8.9%.1 Kimbrough et al found that blood lead levels were positively correlated with home dust lead levels, soil lead levels, hours of outdoor play, and levels of lead in indoor paint.