Selected global cities: Asia
PM2.5 annual mean, micrograms per cubic metre
amount
control
Delhi India 122
Dhaka Bangladesh 90
Karachi Pakistan 88
Beijing China 85
Ulaanbaatar Mongolia 75
Islamabad Pakistan 66
Mumbai 63
Kolkata 61
Shanghai China 52
Kathmandu Nepal 49
Guangzhou China 48
Colombo Sri Lanka 36
Hong Kong China 29
Bangkok Thailand 24
Seoul South Korea 24
Singapore Singapore 18
Manila Philippines 17
Tokyo Japan 15
0
50
100
150
200