TOP 10 AIR-POLLUTED MEGA CITIES
City Pollution
1. Lahore, Pakistan 200
2. Delhi, India 198
3. Karachi, Pakistan193
4. Riyadh, Saudi Arabia 157
5. Kolkata, India 148
6. Greater Cairo, Egypt 138
7. Dhaka, Bangladesh 134
8. Mumbai, India 132
9. Lagos, Nigeria 122
10. Beijing, China 121Annual Mean PM10 Level (µg/m3)
Only cities with over 5m population considered.
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