Smog chokes China again

Updated: Jan 29, 2013 20:01 IST

A train runs under heavy smog in Dalian, northeast China's Liaoning province. Air quality levels rose above index limits in Beijing amid warnings that the smog may not clear until January 31. (AFP Photo)
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A train runs under heavy smog in Dalian, northeast China's Liaoning province. Air quality levels rose above index limits in Beijing amid warnings that the smog may not clear until January 31. (AFP Photo)

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