Air pollution can limit size of babies’ heads

Exposure to air pollution is linked to babies’ growth during pregnancy, according to a new study.

Scientists at the University of Aberdeen reviewed a decade’s worth of research to establish the extent to which mothers’ exposure to air pollution, diet, alcohol and chemicals affects fetal growth. The evidence suggests exposure to nitrogen dioxide results in smaller head sizes, particularly in the final three months of pregnancy.

Professor Steve Turner, who led the study, said: “Our research has shown the link between exposure and fetal growth is apparent well before birth, so any potential interventions need to happen in the early stages of pregnancy.”