PL
Pobranie ołowiu z racjami pokarmowymi przez mieszkańców strefy ochronnej Huty im. T. Sendzimira wynosiło 44% PTWI niezależnie od sezonu. Poziom kadmu w racjach pokarmowych pobieranych jesienią stanowił 143% wartości dopuszczalnej, a w pobieranych wiosną był istotnie niższy i wynosił 99%. Uzyskane współczynniki zmienności wynoszące ok. 65% zarówno dla ołowiu, jak i dla kadmu świadczą o bardzo dużym rozproszeniu powtórzeń wokół średnich wartości pobrania wymienionych metali.
EN
The object of the study was to assess lead and cadmium intake of inhabitants of selected farms located in the area affected by the steelworks emission. Food rations (280 units) were collected during two successive years from autumn 1996 until spring 1998. The weight of the rations was determined taking into account the amount of waste; the ratios were then homogenized, frozen and lyophilised. The lyophilised food rations were dried, mineralised, and the mineralisate was dissolved in HNO3 solution (1/2 HNO3/H2O volume ratio). A Jobin Ivon ICP-AES JY-238 Ultrac Emission Spectrometer was used to determine the amount of cadmium and lead in the resultant solutions. At the same time, food records were kept and personal questionnaires were obtained for each family member participating in the experiment. The results were then recalculated into the weighted average food ration mass for each family, and the value of the provisional tolerable weekly intake (PTWI) was calculated vs. the weighted average body mass. The group of 62 people participating in the experiment comprised 14% girls and 10% boys aged 10-18 (24%), and 46% women and 30% men aged 19-84 (76%). The amount of lead in the food rations was around 44% PTWI, irrespective of the season of the year. The amount of cadmium in the analysed food rations was 143% PTWI in autumn and 99% PTWI in spring.