Evidence of tiny particles of carbon, typically created by burning fossil fuels, has been found in placentas for the first time, in new research presented today (Sunday) at the European Respiratory Society International Congress.

Previous research has indicated links between pregnant mothers’ exposure to air pollution and premature birth, low birth weight, infant mortality and childhood respiratory problems.

The new study adds to existing evidence on the dangers of pollution for unborn babies and suggests that when pregnant women breathe polluted air, sooty particles are able to reach the placenta via the bloodstream.

The work was presented by Dr Norrice Liu, a paediatrician and clinical research fellow, and Dr Lisa Miyashita, a post-doctoral researcher, both members of Professor Jonathan Grigg’s research group at Queen Mary University of London, UK. Dr Miyashita said: “We’ve known for a while that air pollution affects fetal development and can continue to affect babies after birth and throughout their lives.

Read more at European Lung Foundation