[One year after Chernobyl--radioactive cesium in breast milk].

Radioactivity in human breast milk was determined in 32 women in February and March 1987 by means of a Germanium detector. At this time radioactivity increased again by feeding the hay to the cattle harvested in the weeks following the disaster of Chernobyl. 8 (25%) of the values were above 0.3 nCi/l for babies milk recommended by the local authorities.