Abstract
Selenium analysis by neutron activation was performed on serum samples taken from 20 workers at a rubber tire repair shop and from a control group of 18 healthy persons. The mean values were: 148 ± 56 (70–296) and 100 ± 18 (70–127) µg/L for the tire workers and the control groups, respectively. The difference between mean values was significant (p<0.01). A high correlation (r=0.82) was obtained between selenium level and seniority for those values higher than the control group range. None of the shop workers showed evidence of selenosis.