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          Through the smog, tougher fuel standards take form
          

          By Han Tianyang | China Daily | Updated:  2013-02-18 08:04
 



          



          

          

          

          


          


          Through the smog, tougher fuel standards take form
          


          Sharp contrasts in traffic congestion and air quality in the Tiantongyuan community of northern Beijing. Wu Chamgqing / For China Daily
          
          		

          
          

          

          

          


          Yet heavily polluting transient trucks pose challenge in capital
          


          

          Through the smog, tougher fuel standards take form
          

          

          


          


          


          
 
 



          


          

          



          


          

          

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