Abstract:

In this study, a standard method was used to evaluate the toxicity effects of Nitrobenzene on tadpoles Rana amurensis growth and development. The results showed that the regression equations between the individuals’ death probability and the logarithm of Nitrobenzene concentration for 24, 48 and 72 h were y=0.232x+1.523, y=0.246x+1.786, y=0.414x+1.889, suggesting that the death probability of tadpoles R. amurensis individuals had a positive linear correlation with definite range of Nitrobenzene concentration. The 50% lethal concentration (LC50) were 75.84, 58.60 and 31.62 uL?L-1 respectively and the safe concentration (SC) was 13.63 uL?L-1. Under the SC, the growth and development of tadpole R. amurensis on the head length, body length and body weight could be still delayed and disturbed, also resulted in the malformation of tadpoles R. amurensis.