Top 10 Chinese cities with worst air quality
Updated: 2014-03-20 07:46 (chinadaily.com.cn)Zhengzhou
Zhengzhou is the capital and largest city of Henan province. As a major transportation hub for Central 皇冠体育app, it also lies on the southern bank of the Yellow River.
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 Zhengzhou in Henan province. [Photo / Xinhua]
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