EN
Toxicometric indices of nitrotoluen isomers (NT) from studies on their lethal dose toxicity have been reported. Median lethal doses for 2-, 3-, 4-NT do not differ significantly, but they were obtained for different time intervals. The LD50±SLD50 values make it possible to classify the isomers as weakly toxic. The extent of the toxic activity ranges in terms of the value of the probit line coefficient indicates that 3-NT is a relatively most toxic, while the toxicity of 2- and 4-NT is slightly lower.