1) Delhi, India
Capital of India, Delhi has been ranked number 1 in the entire world as the most polluted city Delhi is currently choking on its fumes by having the highest level of Fine Particulate Matter (PM2.5) and that is an average annual exposure of 110 micrograms per cubic metre (µg/m3).
2) Kolkata, India
The capital of the Indian state of West Bengal, Kolkata, is just a little behind Delhi and ranks number 2 on the list of most polluted cities in the whole world with an average annual exposure of 84 µg/m3 of dangerous fine particulate matter (PM2.5).
3) Kano, Nigeria
The second largest city in Nigeria after Lagos, Kano ranks third as the most polluted city around the world, which is a cultural, financial, and entertainment capital of Africa. Having a population of over 4 million, Kano in Nigeria noted as an annual average fine particulate matter (PM2.5) concentration of 83.6 micrograms per cubic metre (µg/m3).
4) Lima, Peru
With over 8 million people living, in South America’s culinary capital, Lima ranks fourth on the list. Lima is the capital of Peru and is considered one of the largest cities in South America. Lima is having an average annual exposure of 73.2 micrograms per cubic metre (µg/m3) of PM2.5.
5) Dhaka, Bangladesh
The fifth most polluted city in the world Dhaka, the capital and largest city in Bangladesh has a population of over 18 million people. It recorded an annual average fine particulate matter concentration of 71.4 µg/m3.
6) Jakarta, Indonesia
A very famous tourist destination in Asia, Indonesia’s capital Jakarta has recorded an annual average PM2.5 concentration of 67.3 micrograms per cubic metre (µg/m3). As per reports India and Indonesia have observed the most serious increase in fine particulate matter pollution.
There are many more cities followed by Delhi, Kolkata, kano, Lima, Dhaka, and Jakarta in the list of most polluted cities in the world including Lagos, Karachi, Beijing, Accra, Chengdu, Singapore, Abidjan, Mumbai, Bamako, Shanghai, Dushanbe, Tashkent, Kinshasa, and Cairo.