Delhi has the worst air pollution out of the world's mega-cities with more than 14 million habitants
PM10 levels for the last available year in the period 2010-2016, micrograms per cubic metre of air
PM10 (ug/m3)
0
50
100
150
200
250
Delhi 292
Greater Cairo 284
Dhaka 104
Mumbai 104
Beijing 92
Shanghai 59
Istanbul 53
Mexico City 39
Sao Paulo 28
Buenos Aires 27