Three hundred million of the world’s children live in areas with extreme air pollution, where toxic fumes are more than six times international guidelines, according to new research by Unicef, The Guardian informs.

The study, using satellite data, is the fist to make a global estimate of exposure and indicates that almost 90% of the world’s children - two billion - live in places where outdoor air pollution exceeds World Health Organisation (WHO) limits.

Unicef warned the levels of global air pollution contributed to 600,000 child deaths a year – more than are caused by malaria and HIV/Aids combined. Children are far more vulnerable to air pollution, Unicef warned, pointing to enduring damage to health and the development of children’s brain and urging nations attending a global climate summit next month to cut fossil fuel burning rapidly.

Three hundred million of the world’s children live in areas with extreme air pollution, where toxic fumes are more than six times international guidelines, according to new research by Unicef.

The study, using satellite data, is the fist to make a global estimate of exposure and indicates that almost 90% of the world’s children - two billion - live in places where outdoor air pollution exceeds World Health Organisation (WHO) limits.