The international practice in the environment management field shows that the analysis of pollution prevention and decrease is oriented on the following directions: pollution sources with causes which produce the environment pollution, pollution effects, the evaluation of the vulnerability type and the sensitivity of the polluted areas.
In this paper elaboration of the pollution evaluation risk based on an index as a three parameters function, as well as the alternative constructive variant without double hull. The method used for the evaluation of the discharged merchandise quantity is made based on the statistic processing. This project proposes an instrument for the evaluation of the pollution risk at tanker oils in accordance with the international regulations. This method can be useful to all "the actors? who develop their activity in the naval industry (transporters, oil terminal operators, naval constructors, insurance companies etc).This project, by it's content and by the information offered, can constitute a solid base for the ulterior developments in this field.