|  | 2020 | 643 | 136 | 0 | 3450 | 4229 | 0 | 410 | 2282 | 0 | 1049 | 0 | 0 | 0 | 0 | 0 | 488 | 4229 | 
|  | 
  | Chemical | Year | I1 | I2 | I3 | I4 | Input Total
 | O1 | O2 | O3 | O4 | O5 | O6 | O7 | O8 | O9 | O10 | O11 | Output Total
 | 
  
  
    | 1.  1-methoxy-2-propyl acetate | 
    
      | 000108-65-6 | 2020 | 15 | 0 | 0 | 15 | 30 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 
  
  
  
      |  | 
      
    
    | 2.  acetylene | 
    
      | 000074-86-2 | 2020 | 540 | 0 | 0 | 780 | 1320 | 0 | 0 | 0 | 0 | 870 | 0 | 0 | 0 | 0 | 0 | 450 | 1320 | 
  
  
  
      |  | 
      
    
    | 3.  benzyl alcohol | 
    
      | 000100-51-6 | 2020 | 10 | 0 | 0 | 12 | 22 | 0 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 6 | 22 | 
  
  
  
      |  | 
      
    
    | 4.  butyl acetate / n-butyl acetate | 
    
      | 000123-86-4 | 2020 | 12 | 0 | 0 | 35 | 47 | 0 | 0 | 0 | 0 | 39 | 0 | 0 | 0 | 0 | 0 | 8 | 47 | 
  
  
  
      |  | 
      
    
    | 5.  chromium | 
    
      | 007440-47-3 | 2020 | 0 | 0 | 0 | 153 | 153 | 0 | 0 | 153 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 153 | 
  
  
  
      |  | 
      
    
    | 6.  ethylbenzene | 
    
      | 000100-41-4 | 2020 | 12 | 0 | 0 | 116 | 128 | 0 | 96 | 0 | 0 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 128 | 
  
  
  
      |  | 
      
    
    | 7.  manganese | 
    
      | 007439-96-5 | 2020 | 0 | 0 | 0 | 1311 | 1311 | 0 | 0 | 1311 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1311 | 
  
  
  
      |  | 
      
    
    | 8.  methyl amyl ketone / 2-heptanone | 
    
      | 000110-43-0 | 2020 | 0 | 0 | 0 | 5 | 5 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 
  
  
  
      |  | 
      
    
    | 9.  methyl ethyl ketone | 
    
      | 000078-93-3 | 2020 | 0 | 0 | 0 | 59 | 59 | 0 | 45 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 59 | 
  
  
  
      |  | 
      
    
    | 10.  methyl isobutylketone / hexone | 
    
      | 000108-10-1 | 2020 | 0 | 0 | 0 | 18 | 18 | 0 | 14 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 
  
  
  
      |  | 
      
    
    | 11.  methylene diphenyl diisocyanate (4,4'-) / methylenebis(phenylisocyanate) / mdi | 
    
      | 000101-68-8 | 2020 | 54 | 0 | 0 | 120 | 174 | 0 | 112 | 0 | 0 | 37 | 0 | 0 | 0 | 0 | 0 | 24 | 174 | 
  
  
  
      |  | 
      
    
    | 12.  n-butyl alcohol / 1-butanol | 
    
      | 000071-36-3 | 2020 | 0 | 0 | 0 | 34 | 34 | 0 | 29 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 34 | 
  
  
  
      |  | 
      
    
    | 13.  nickel | 
    
      | 007440-02-0 | 2020 | 0 | 136 | 0 | 0 | 136 | 0 | 0 | 136 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 136 | 
  
  
  
      |  | 
      
    
    | 14.  toluene / methylbenzene | 
    
      | 000108-88-3 | 2020 | 0 | 0 | 0 | 54 | 54 | 0 | 54 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 54 | 
  
  
  
      |  | 
      
    
    | 15.  xylene / xylene (mixed isomers) | 
    
      | 001330-20-7 | 2020 | 0 | 0 | 0 | 682 | 682 | 0 | 0 | 682 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 682 | 
  
  
  
      |  | 
      
    
    | 16.  zinc / zinc (fume or dust) | 
    
      | 007440-66-6 | 2020 | 0 | 0 | 0 | 56 | 56 | 0 | 56 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 56 | 
  
|  | 
  |  | 2020 | 643 | 136 | 0 | 3450 | 4229 | 0 | 410 | 2282 | 0 | 1049 | 0 | 0 | 0 | 0 | 0 | 488 | 4229 | 
|  |