[Results of breast milk examinations in Northern Bavaria].

During the years of 1984-1991 2069 samples of human milk from Northern Bavarian were analyzed for residues of organochlorined pesticides and polychlorined biphenyls. In this paper it is exclusively reported about substance residues in human milk which were toxicological valuated by the German Research Fellowship (Deutsche Forschungsgemeinschaft). Concerning the amount of pesticides and PCB-residues in human milk a dependence to woman's age, number of children and time of suckle period could be found. There was not seen any dependence to kind of nutrition and smoking behavior. Residue-concentrations of forbidden organochlorined pesticides decrease during the whole research period. Nevertheless polychlorined biphenyls will continual regarded as critical substances where no decreasing of residue concentrations is observed. This substance class furthermore will be observed because of continual environment pollution. It is reported about a test in which during a suckle period milk of two women was analyzed after weekly sampling. After ten weeks significantly decreasing of residue amounts concerning the most observed substances were found. A conclusion to help in practical counsel for nursing mothers is given.