Study: Children exposed to common insecticide before birth suffer brain damage years later
A JAMA Neurology study provides the first documented evidence that prenatal exposure to chlorpyrifos, a pesticide still used on U.S. farmland, causes measurable physical changes in children’s brains and impairs motor function years later, with higher exposure linked to worse performance on motor speed and programming tests.
The research examined 270 children born to Black and Hispanic mothers with detectable chlorpyrifos levels in umbilical cord blood, finding that brain alterations and metabolic disturbances were widespread throughout the brain, explaining functional deficits previously documented such as lower IQ, reduced working memory and attention disorders.
While the EPA banned indoor residential use of chlorpyrifos in 2001, it remains legal for agricultural applications on non-organic fruits, grains and vegetables – continuing to expose farm workers, pregnant women and unborn children through drifting dust and outdoor air contamination.
The findings likely extend to other organophosphates, which share a mechanism of attacking the nervous system, and the developing brain remains exquisitely vulnerable during pregnancy, infancy and early childhood – periods of rapid growth easily disrupted by toxic chemicals.
The study underscores how corporate interests prevail over public safety, with captured regulatory agencies prioritizing chemical manufacturers’ profits over children’s health. It also raises the question of why chlorpyrifos is still allowed when safer alternatives and natural growing methods exist.
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