The low energy WBC allows the evaluation of U-238 presence in the lungs, the organ considered mainly at risk from insoluble Uranium particle contamination. WBC highlights the presence of other radioisotopes, both natural and artificial, which are above normal values as they create disturbances in the low energy spectrum. An example is the greater than average amount of the natural radioactive isotope of potassium K-40 which can be found in highly athletic people. The combined analysis of this data will allow the detection of minimal quantities and at the same time reduce the possibility of false results. The minimum amount of DU detectable depends on many parameters, among which the most important is the natural level of Uranium found in the body, dependant on eating habits, physical build and place of residence.
Careful monitoring is indispensable to identify eventual new cases.