Pregnant women who live in areas with significant air pollution risk having babies of low birth weight, the largest study to date suggests.
The study, in Environmental Health Perspectives, looked at more than three million births in nine nations.
The effect was small and individuals should not be alarmed, but there was a notable impact on the population as a whole, the researchers said.
Low birth weight babies have a higher risk of health problems and death.
The majority survive but have an increased risk of developing conditions such as diabetes and heart disease as adults…….