[Results of a 5-year study of milk and milk products in the patients' kitchen of the Military Medicine Academy for organochlorine pesticide contamination].

The results of a five-year examination of the pasteurized milk, yogurt, cottage cheese and butter supplies for the patients' kitchen of the MMA for contamination with organochlorine pesticides are presented. The representative samples were analysed every month and the results were expressed as the mean value of the analysed samples for the every year of examination. The obtained values for organochlorine pesticides were recalculated for the contents of milk fat and milk products according to the requirements of the Regulations for the maximum permissible pesticide quantities in foodstuff. With same exceptions, in all the analysed samples of milk and milk products the content of pesticides were within the standard norms the last two years. The decreasing tendency, that is, gradual disappearing of DDT and its metabolites from milk and milk products has been pointed out.