ADHD and Fungicides

One large scale study (involving 475 children) shows that prenatal exposure to hexachlorobenzene (HCB), a fungicide commonly used in agriculture, affects children as they grow up. The authors of this study used an ADHD score test to analyze children's behaviors and correlated it with prenatal exposure to HCB. They conclude that prenatal exposure to HCB:

is associated with a decrease in the behavioral competence at preschool ages. These results should be considered when evaluating the potential neurotoxicologic effects of HCB.