Chlorpyrifos, a widely used insecticide, has come under scrutiny for its health risks, particularly prenatal exposure. Recent US studies indicate that exposure to chlorpyrifos before birth can lead to structural brain abnormalities in children, as well as reduced motor function. Researchers found a correlation between prenatal exposure and adverse changes in brain structure, function, and metabolism, with the severity proportional to the exposure levels.
The study analyzed data from New York City families between 1998 and 2015, focusing on children whose mothers reported exposure to chlorpyrifos. MRI scans and behavioral assessments revealed a significant link between prenatal chlorpyrifos levels and pediatric brain abnormalities. The original cohort primarily included African American and Dominican mothers, which may limit the generalizability of the findings.
Despite the 2001 ban on residential use of chlorpyrifos in the US, agricultural use continues globally, presenting ongoing risks for farm workers, pregnant women, and fetuses. Experts urge continued monitoring of exposure levels, particularly in at-risk populations, while emphasizing the need for further research on chlorpyrifos and similar pesticides due to their potential negative effects on brain development. The study highlights the importance of minimizing exposure during vulnerable developmental stages.
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