The WHO has long called air pollution a public health emergency, attributing 7 million deaths (including 600,000 child deaths) to exposure to unhealthy air, which 90 per cent of the world’s population breathes.
WHO imeita kwa muda mrefu uchafuzi wa hewa kuwa dharura ya afya ya umma, ikihusisha vifo milioni 7 (ikiwa ni pamoja na vifo vya watoto 600,000) kutokana na kuathiriwa na hewa isiyofaa, ambayo asilimia 90 ya watu duniani hupumua.