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Heavy smog lingers in large area of N China

Updated: 2014-02-22 11:38 (Xinhua/China Daily)
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Heavy smog lingers in large area of N China

Buildings are seen through smog in Tianjin, Feb 21, 2014. A large area of north China including Beijing and Tianjin are experiencing another round of heavy smog and air pollution that is expected to last for a week. [Photo/Xinhua]

 

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