'AIR POLLUTION' linked to smaller head sizes in unborn babies.

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 from around the world 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  last three months of pregnancy.

Professor Steve Turner, who led the study, said : ''What was unique about our review of the literature is that we looked at unborn babies to see if mothers' exposures to these factors affect fetal development.

''Previous research has shown that being small - for gestational age - at birth is associated with increased risk for conditions that include coronary artery disease, type two diabetes and asthma.

''Our research has shown that the link between exposures and fetal growth is apparent well before birth, so any potential interventions need to happen in the in early stages pregnancy.

''Furthermore, the findings also suggest that public health measures are urgently required to minimise pregnant mothers' exposures to nitrogen dioxide.''

Nitrogen dioxide is primarily generated by vehicle traffic, but can be present in the home from cigarette  smoke or butane and kerosene heaters and stoves. [Agencies]


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