28. Jiaozuo, Central China
> Population: 732,000
> Average annual PM2.5 pollution per cubic meter: 85.0 micrograms
> Average annual PM10 pollution per cubic meter: 142.0 micrograms
27. Al-Shuwaikh, Kuwait
> Population: 2,500
> Average annual PM2.5 pollution per cubic meter: 85.3 micrograms
> Average annual PM10 pollution per cubic meter: 180.1 micrograms
25. Liaocheng, East China
> Population: 677,000
> Average annual PM2.5 pollution per cubic meter: 86.0 micrograms
> Average annual PM10 pollution per cubic meter: 151.0 micrograms
25. Anyang, Central China
> Population: 1.1 million
> Average annual PM2.5 pollution per cubic meter: 86.0 micrograms
> Average annual PM10 pollution per cubic meter: 155.0 micrograms
23. Hengshui, North China
> Population: 478,000
> Average annual PM2.5 pollution per cubic meter: 87.0 micrograms
> Average annual PM10 pollution per cubic meter: 143.0 micrograms