As early as 1943, it was reported that children recovering from clinical lead poisoning exhibited severe attentional problems, including increased aggressive behavior, learning difficulties and school failure.
Lead toxicity is a very common problem.
Typical sources of environmental lead include paint, water and soil. While lead toxicity occurs in families at all socioeconomic levels, the rate is much higher in economically disadvantaged families. Lead toxicity is a treatable condition. Children with elevated blood lead levels should be screened for iron and zinc deficiencies. Early detection, intervention and ongoing prevention are the best approaches to the problem of childhood lead exposure.