Smog in China

Updated: Feb 25, 2014 18:02 IST

A man and his dog, both wearing masks, walk along a small alley on a hazy day in Beijing, February 23, 2014. (Reuters Photo)
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A man and his dog, both wearing masks, walk along a small alley on a hazy day in Beijing, February 23, 2014. (Reuters Photo)

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