Henan chokes on lingering smog

Updated: 2013-10-09 13:28

(chinadaily.com.cn)

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Henan chokes on lingering smog

A museum in Zhoukou, Central China's Henan province, is shrouded by heavy smog, Oct 8, 2013. The bigger temperature difference caused an inversion layer in atmosphere and led to pollution being trapped close to the ground. [Photo/CFP]

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