A policeman directing traffic in heavy smog in Anyang, Henan on December 20, 2013. Photo: CFP A policeman directing traffic in heavy smog in Anyang, Henan on December 20, 2013. Photo: CFP
A policeman directing traffic in heavy smog in Anyang, Henan on December 20, 2013. Photo: CFP

new | Smog persists across northern China

A policeman directing traffic in heavy smog in Anyang, Henan on December 20, 2013. Photo: CFP A policeman directing traffic in heavy smog in Anyang, Henan on December 20, 2013. Photo: CFP
A policeman directing traffic in heavy smog in Anyang, Henan on December 20, 2013. Photo: CFP
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