WEB CHUTNEY

According to the World Health Organization’s database that contains results of ambient (outdoor) air pollution monitoring from almost 1600 cities in 91 countries, here’s the list of world’s most polluted cities in the world.

10. Lucknow, India

9. Ahmedabad, India

8. Khorramabad, Iran

7. Rawalpindi, Pakistan

6. Peshawar, Pakistan

5. Karachi, Pakistan

4. Raipur, India

3. Gwalior, India

2. Patna, India

1. Delhi, India