A study published in The Lancet Planetary Health reveals that exposure to pollution during pregnancy, especially in the second and third trimesters, can impact foetal brain structures, potentially leading to developmental delays, motor coordination issues, and brain imbalances.
Researchers analyzed data from 754 mother-foetus pairs between 2018 and 2021, using transvaginal neurosonography to examine brain development. They found that prenatal exposure to nitrogen dioxide (NO₂), particulate matter (PM2.5), and black carbon led to increased brain cavity volumes, including the lateral ventricles and cisterna magna. Additionally, changes in the cerebellar vermis—critical for motor coordination—were detected, suggesting delayed brain maturation.
Experts stress the importance of further research and heightened awareness, urging the health community and society to recognize pollution’s subtle yet significant impact on foetal brain development.