World Health Organization has issued a strong warning about the effects of air pollution on children. On October 29, 2018, it released a report called Air Pollution and Child Health. It states that in 2016, 600,000 children died from acute lower respiratory infections caused by polluted air. What is worse is that 93% of the world's children under the age of 15 (1.8 billion) are exposed to high levels of PM 2.5 which are superfine air pollutants. Worst are those living in developing countries where 98 per cent of all children are exposed to very unhealthy air.