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OOPS!! Airborne/Dust Concentration



Correction to previous calculation due to unit conversion error on my part.

25 pci/g * 1g/1E3 mg * 10mg/m3 * 1E-6 uci/pci * m3/1E6 ml = 2.5E-13 uci/ml 

and applying the 30% factor from our Risk Group = 7.5E-14 uci/ml

Thanks to all for correcting my mistake.  If it were'nt for radsafe I might
have submitted erroneous calculations to the client.

Sincerely,

Mark B. Mattheiss
Health Physicist/Health and Safety Coordinator
Dames & Moore, Denver, Colorado
E-Mail DENMBM@Dames.com
Phone 303-299-7911