The present paper presents the comparative results of the organochlorine pesticide contamination of three types of sour cream having a fat content of 10%, 15% and 25%, gathered in two different periods of time, on the territory of the Bihor County. The purified fat extract has been submitted to qualitative and quantitative determinations through the gas chromatography method, using a complex standard with 20 compounds. The results aimed at the determination of the OCP incidence under sanitary veterinary surveillance [11] and the concentration for the compounds identified positively. The values of the maximum admitted concentrations have been exceeded, consistently, for Endrin and Endosulfan. However there is no real direct mathematic correlation with the fat percentage of the tested samples.