Originally posted by the Voice of America.
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                           Pollution Alert in Beijing

   China's capital Beijing, under fire to take effective measures against
   air pollution, raised its four-tiered alert system to 'orange' for the
   first time on Friday, as heavy smog was forecast to roll into the city
   over the next three days.
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   [1]http://www.voanews.com/media/photogallery/beijing-pollution/1859778.
   html

References

   1. http://www.voanews.com/media/photogallery/beijing-pollution/1859778.html