[Contamination of breast milk with organochlorine compounds in comparison with cow's milk and selected milk products in the new federal districts].

400 human milk, 280 cowmilk, 56 milkpowder and 305 butter samples were examined concerning there content of chloroorganic compounds. In human milk the highest concentration had DDE, followed by PCB, DDT and HCB, the lowest values were measured for HCH. Only total DDT in human milk but no compound in the milk product samples was above the maximal tolerated limit. There is a strong reduction in comparison to the values measured in 1979 (ten times for total HCH, one half for total DDT and to one sixth for HCB) but the PCB concentration didn't change.