EN
The concentrations of lead, cadmium, zinc, cuprum and chrominum in human milk were determined using GF AAS. The samples originated from women living in the Upper Silesian Industrial District (Poland). The mean concentration of lead was about 50 ng/g, cadmium 16 ng/g, zinc 50 μg/g, chromium 45.5 ng/g, and copper 1.1 μg/g. The mineralization of the samples was carried out both by means of concentrated mineral acids (HN03; HN03+HCI04 and HN03 + H202) under normal pressure for 12 hours, and mineralization with the microwave digestion system (which is most recommended).