RE: Depleted Uranium vs. Tungsten

["Edwards, Richard W" <Richard.Edwards@PSS.Boeing.com>]

ACGIH's 1997 TLVs and BEIs  guide lists the TLV-TWA for uranium as 0.2
mg/m^3 and the TLV-TWA for tungsten as 5 mg/m^3 for soluble variants and
1 mg/m^3 for insoluble variants. The TLV-STEL values for each show a
similar ratio.

Richard Edwards, Analyst
The Boeing Company
richard.w.edwards@boeing.com

	     ...I read a 
>      report sometime ago which purported that Tungsten is actually
> more 
>      chemically toxic than DU.  Can someone please cite information
> which 
>      confirms or contradicts this statement?
>