“… 17 The resulted metal particles may be rapidly oxidized in the air, then form oxide powder aerosols, which enter the human body by respiration, oral and wound contamination, even embedded in the human body. 18 , 19 , 20 , 21 After DU absorbed through respiration and digestive tract, they will enter the circulation, then mainly deposited in the alveoli and bones. Uranium in body is mainly excreted by the kidney, with excretion rate more than 90% within 24 h, and completely eliminated within 340 days.…”