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Festival travelers battle heavy fog

Updated: 2014-01-30 11:54 (chinadaily.com.cn)
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Festival travelers battle heavy fog

Liaocheng city in East China's Shandong province issued an orange alert for smog on Jan 30. Orange is the second level in the three-tiered color-coded warning system that indicates visibility between 200 and 50 meters. [Photo/icpress.cn]

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