Selenium status of inhabitants of region Jablonec, Czech Republic

To investigate Se status of inhabitants in the region of Jablonec nad Nisou, 319 blood sera and 26 men's hair samples were analyzed by neutron activation analysis (NAA) and 635 urine were analyzed by fluorimetry. Quality assurance of both analytical methods was checked by co-analyses of standard reference materials. Results were statistically evaluated and graphically presented as well as compared with the previous results from other regions of the CR. Region Jablonec seems to be one of the best regions in the CR from the point of Se status but, all analyzed Se indexes (mean serum Se 63.9 +/- 14.2 mug/l; mean urine Se 18.5 +/- 7.9 mug/l; mean urine Se/creatinine 14.8 +/- 7.2 mug/g for population of both genders from 6 to 65 years and mean hair Se 0.309 +/- 0.055 mug/g dry hair for men between 18 and 49 years) prove Se deficiency in this region of the Czech Republic.