มลพิษในกรุงปักกิ่ง
1
A coal-burning power station at night in Xiangfan, Hubei province, September 15, 2009.
2
Beijing schools kept children indoors January 14, 2013, and hospitals saw a spike in respiratory cases following a weekend of excessive pollution in China's smoggy capital.
3
A teacher leads her students doing body exercise during class break in a classroom on a foggy day in Jinan, Shandong province, January 14, 2013. Heavy fog enveloped a large swathe of east and central China, with the city's residents being advised to stay
4
Cranes atop a residential building under construction in central Beijing, April 18, 2012.
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