Air pollution particles can reach babies in the womb, a new study suggests. Researchers found that soot nanoparticles can cross the placenta and get into organs of foetuses. Experts from the University of Aberdeen and Hasselt University, Belgium, said their finding was “especially concerning” because key organ development occurs when babies are growing in the uterus. Researchers examined 60 mothers and their babies in Aberdeen and the Grampian region in Scotland. They also analysed tissue samples from 36 foetuses which had been aborted between seven and 20 weeks of gestation. The team found ev…