China Issues Yellow Fog Alert

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Laborers work at a construction site as heavy fog engulfs the city on... News PhotoBeijing,China - East Asia,City,Construction Industry,Construction Worker,Finance,Fog,Horizontal,Pollution,Weather,Working,ZhengzhouPhotographer Collection: ChinaFotoPress 2013 ChinaFotoPressZHENGZHOU, CHINA - JANUARY 14: (CHINA OUT) Laborers work at a construction site as heavy fog engulfs the city on January 14, 2013 in Beijing, China. China's meteorological authority issued a yellow alert for fog on Sunday. A thick fog continued to shroud central and eastern parts of China, leading to flight delays and expressway closures last weekend. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)