Determination of uranium reference levels in the urine of Warsaw residents (Poland)

摘要

This paper presents the results of determination of activity concentration of ²³⁸U and ²³⁴U in urine samples of people living in Warsaw (capital of Poland) to evaluate background level of these radionuclides excretion rate (mBq day⁻¹). The samples were taken from women and men in age between 3 and 97 years. The results obtained for ²³⁸U daily excretion rate were in range 0.44–30.54 mBq day⁻¹ and for ²³⁴U in range 0.33–28.61 mBq day⁻¹. 70 % results were below 6 mBq day⁻¹ upper limit recommended by ICRP for non-exposed people (ICRP, ICRP publications No. 23, report of the task group on reference man, ). The results are discussed and some conclusions based upon average values were drawn.