See "Uranium" and the linked occupational disease.
Uranium in urine = 200 ug/L at end of shift; [ACGIH]
0.2 mg/m3, as U
0.6 mg/m3, as U
0.05 mg/m3, as U (sol. compds), 0.25 mg/m3, as U (insol. compds)
10 mg/m3, as U
No other related information on this agent was found.