Fog Envelops North China

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Tourists wearing masks walk at Tiananmen Square as heavy fog engulfs... News PhotoBeijing,China - East Asia,City,Environmental Issues,Fog,Horizontal,International Landmark,Tiananmen Square,Tourism,Tourist,WalkingPhotographer Collection: ChinaFotoPress 2013 ChinaFotoPressBEIJING, CHINA - JANUARY 28: (CHINA OUT) Tourists wearing masks walk at Tiananmen Square as heavy fog engulfs the city on January 28, 2013 in Beijing, China. China's National Meteorological Center (NMC) issued a blue-coded alert on January 27 as a thick fog will shroud central and eastern parts of China in the following two days. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)