90% of world's children are breathing toxic air, WHO study finds

Report says air pollution is having a devastating impact on children worldwide, storing up a public health time bomb

Poisonous air is having a devastating impact on billions of children around the world, damaging their intelligence and leading to hundreds of thousands of deaths, according to a report from the World Health Organization.

The study found that more than 90% of the world's young people - 1.8 billion children - are breathing toxic air, storing up a public health time bomb for the next generation.