|  Exposure period (Day) | 
        Exposure level MX or MK (mg/g)  | 
        Nitro    musk metabolites (ng/g)  | 
       
      
        | 2-AMX  | 
        4-AMX  | 
        2-AMK  | 
       
      
        | 1-Day | 
        0.01 | 
        94.0 | 
        2404.4 | 
        115.4 | 
       
      
        | 0.03 | 
        492.0 | 
        12588.5 | 
        505.5 | 
       
      
        | 0.10 | 
        444.1 | 
        10325.9 | 
        426.6 | 
       
      
        | 0.30 | 
        259.1 | 
        5147.3 | 
        396.1 | 
       
      
        | 3-Days | 
        0.03 | 
        213.6 | 
        6097.6 | 
        357.8 | 
       
      
        | 7-Days | 
        0.03 | 
        113.5 | 
        2988.3 | 
        298.0 | 
       
      
        | Controls | 
        None | 
        Not detected | 
       
      | 
  
  
    | (Source: Reproduced with permission from (48), © Elsevier). | 
  
  
    | Table 4: Concentration of nitro musk metabolites in trout liver samples using hydrolyzed extraction. |