RESUMEN
OBJECT: Authors object were to determine dependence between cadmium level in blood and urine with eventual coincidention of hypomagnesemia in pre-school children living in town of Bytom in groups of different level of exposure on pollution. MATERIAL AND METHODS: Level of those metals was measured in groups of 150 pre-school children tocsycologically identical. RESULTS AND DISCUSSION: Obtained results of level of cadmium in blood and urine of pre-school children were below normal parameters defined by WHO. Authors didn't define the connection with degree of environmental pollution. In examined population blood hypomagnesemia and total loss of magnesium in body were formed, which occurred in low magnesium level in urine. CONCLUSIONS: Level of cadmium in blood and urine is an answer to chronic environmental influence, not always connected with degree of pollution. The whole population of children developing under environmental cadmium exposition, demonstrate hypomagnesemia, especially dangerous in this moment of growth. Simple and non-invasive evaluation of magnesium level in children, allows early detection of magnesium deficit in child's body.