|Fact sheet No 257: Depleted Uranium - January 2001 (WHO, 2001, 5 p.)|
On average, approximately 90 µg of uranium exists in the human body from normal intakes of food, air and water; approximately 66% in the skeleton, 16% in liver, 8% in kidneys and 10% in other tissues.
· External exposure occurs during proximity to DU metal (e.g., working in a munitions store or vehicle equipped with DU munitions or DU armour) or through contact with dust or shrapnel created following explosion or impact. Effects due to external exposure only (no ingestion, inhalation or dermal absorption) would be limited to radiological effects.
· Internal exposure occurs by ingestion and inhalation. In the military environment, wounds represent an additional route of exposure if these are caused by the impact of DU projectiles or armour.