   12           
  
2021/7/20
      2021  1—6                84 . 8 %     1 . 8                    68 . 1 %     39 . 1    
                       12                                                           12                 99 . 4 %      96 . 1 %       93 . 3 %      90 . 6 %      88 . 4 %     82 . 9 %      80 . 1 %      80 . 1 %      79 . 6 %      77 . 9 %      76. 2 %      73.5 %           PM 2 . 5   25  /        21 . 9 %   12   PM 2 . 5            10  /          17  /         22  /         23  /         23  /        26 /         26  /         27  /         28  /        31  /         32  /           33  /     
 
      
 
 
  
 
2014-2015 ©                      蒙ICP备05070829号