Heavily polluted air in Beijing
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E-mail China.org.cn, January 12, 2013
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| Buses pass by the Tian'anmen Square in Beijing, capital of China, Jan. 11, 2013. The PM 2.5 (particles less than 2.5 microns) data in Beijing hit 240 to 446 on Friday, which means the 6 rating heavily polluted air quality. |
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