بررسی تأثیر احتمالی پرتوگیری شغلی بر میزان عناصر کم مقدار روی و مس موجود در خون پرتوکاران رادیولوژی

There are a few studiees on low dose effect of ionizing radiation on radiation workers. Of these, the x-ray personnel who are exposed to very low dose, long term radiation because of the profession, become important in this regard. This study was aimed to compare the two very important trace elements, zinc and copper, in the blood of 44 hospital x-ray technicians (XRTs) who have received less than 0.05mSv of radiation bimonthly with non radiation workers of the same centers. Blood samples of the candidates were tsken for comparison of zinc and copper contents, employing Acid Digestion technique by Atomic Absorption Spectrometry (AAS). The average levels of zinc in XRTs and control group were 6.409 and 6.589 mg/L respectively. The values for copper were 1.006 and 1.044 mg/L respectively. The results indicate although there were lower concentrations of both elements in XRTs than the controls, using t-test the difference was not statistically significant(P>0.05). However comparing corresponding female and male subjects of each group, the decrease of copper in female XRTs (1.062 mg/L) compared to control females (1.143mg/L) was significant (P<0.01). Hence the possible effectiveness of chronic occupational exposure on the blood tract elements is supported.