1: China ranks as the world's most polluted country due to industrial emissions.

2: India faces severe air pollution issues from vehicle emissions and crop burning.

3: Bangladesh battles pollution from rapid urbanization and industrial growth.

4: Mongolia's pollution is caused by coal-fired power plants and transportation emissions.

5: Afghanistan struggles with pollution from dust storms and lack of infrastructure.

6: Pakistan faces pollution challenges from industrial waste and vehicle emissions.

7: Indonesia grapples with air pollution from deforestation and agricultural burning.

8: Iran contends with pollution from vehicle emissions and industrial activity.

9: Nigeria deals with pollution from oil spills and industrial waste.

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