Objective: To assess the level of knowledge on the risks and prevention methods of pump attendants. Material and methods: This were a descriptive cross-sectional study lasting 06 months from 01 March to 30 August 2019 Our variables were clinical (occupational risk and means of prevention) and epidemiological (age - gender - marital status - level of education - length of service). Results: In our study, the average age of pump attendants was 32.06 years. The most represented age group was 28 to 37 years old. The means of prevention mentioned by the pump attendants were dominated by the correct wearing of clothing, i.e. 98% followed by the wearing of boots and masks respectively 95% and 47%. The most dominant risk factor was intoxication with 123 cases or a rate of 61.5% followed by fires with 116 cases or a rate of 58%. Conclusion: The pump attendants of gasoline service stations have insufficient knowledge of the risks and prevention methods related to hydrocarbons. This prevention essentially involves training, information, education and communication actions on the risks associated with hydrocarbons.