EN
Results of the comparative assessment of cumulative effect indices for mononitrotoluene isomers are reported. By means of the Lim method it has been demonstrated that the cumulative median lethal doses for the 2-, 3-, and 4-nitrotoluene (NT) isomers were 186%, 83.7%, and 74.2% of LD50, respectively. From determined cumulative indices (Kk) it has been demonstrated that the 3- and 4-NT isomers may be classified to the first, and 2-NT to the second class of cumulative toxic effect chemicals.