The study investigated possible relationships between lead levels and behavioral problems in 55 elementary schoolchildren (26 with behavior problems and 29 controls). The group of behavior problem children had significantly higher hair lead levels. (Author/SB)

This study investigated the relationship between hair mineral elements and childhood learning disabilities and determined which minerals, if any, separated 26 learning disabled children with 24 normal controls. The learning disabled group had significantly raised hair-lead concentrations. There were also differences in the mean levels of 10 other…

Hair trace mineral concentrations were compared to a group of 40 retarded children with a nonretarded control group of 27. The retarded group had significantly raised hair lead concentrations. There were also differences in the mean levels of six nutrient minerals. (Author)

The relationship between subtoxic metal levels and mild mental retardation and borderline intelligence was investigated through comparison of hair metal concentrations in 135 secondary students with mild retardation or borderline intelligence. Children in the retarded/borderline group had significantly higher lead and cadmium concentrations.…

The article summarizes research on relationships between low (below metal poisoning) metal exposure and childhood behavior disorders. Symptoms, assessment techniques (hair analysis), and environmental and dietary factors that may increase the risk of metal pollutant exposure are described. School programs emphasizing education and the role of…

Examines the effectiveness of a family-based environmental education program in lowering young children's exposure to lead and whether a lead-lowering intervention is associated with changes in behavioral functioning. Results suggest that lead exposure degrades behavioral performance in young children and that family-based environmental education…