World 93 percent of the world’s children breathe toxic, polluted air each day October 30, 2018October 30, 2018 Doyle Rice, USA TODAY Comments Off on 93 percent of the world’s children breathe toxic, polluted air each day Nearly 2 billion children – about 93% of the world’s children under the age of 15 – breathe toxic, putrid air, a new report said.