| Point | 
        Concentration    (ppm) (95 % of confidence limits)  | 
       
      
        | 24h | 
        48h | 
        72h | 
        96h | 
       
      
        | LC1 | 
        - | 
        0.73 ± 0.83 | 
        0.62 ± 0.84 | 
        0.64 ± 0.71 | 
       
      
        | LC10 | 
        - | 
        0.89 ± 0.83  | 
        0.80 ± 0.84  | 
        0.77 ± 0.71 | 
       
      
        | LC30 | 
        - | 
        1.00 ± 0.83  | 
        0.93 ± 0.84  | 
        0.86 ± 0.71 | 
       
      
        | LC50 | 
        - | 
        1.08 ± 0.83 | 
        1.03 ± 0.84 | 
        0.93 ± 0.71 | 
       
      
        | LC70 | 
        - | 
        1.16 ± 0.83  | 
        1.12 ± 0.84  | 
        0.99 ± 0.71 | 
       
      
        | LC90 | 
        - | 
        1.27 ± 0.83  | 
        1.25 ± 0.84  | 
        1.08 ± 0.71 | 
       
      
        | LC99 | 
        - | 
        1.43 ± 0.83  | 
        1.44 ± 0.84  | 
        1.21 ± 0.71 | 
       
      |