Producer:  Priyanka Das Editor: Sujata Singh

10 of the World's Most Polluted Cities

1. Lahore, Pakistan

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AQI: 455

2. Delhi, India

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AQI: 443

3. Karachi, Pakistan

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AQI: 275

4. Dhaka, Bangladesh

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AQI: 222

5.  Kolkata, India

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AQI: 198

6. Mumbai, India

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AQI: 172

7. Jakarta, Indonesia

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AQI: 155

8. Hanoi, Vietnam

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AQI: 152

9. Baghdad, Iraq

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AQI: 143

10. Ho Chi Minh City, Vietnam

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AQI: 133

(Source: IQAir)