Re: Airborne

[LIPTONW@detroitedison.com]

What you're looking for is the "resuspension factor," "K": 
 
K = chi/C, where chi is the airborne concentration and C is the areal 
concentration of the material on the ground.   If chi ~ Ci/m3 and C ~ Ci/m2, 
then K ~ 1/m. This is affected by particle size as well as traffic on a 
surface. It is also affected by air movement.  Typical values are in the range 
of 2E-6/m to 2E-10/m.  This is discussed in John Till and Robert Meyer's book, 
"Radiological Assessment,"  NUREG/CR-3332.  See chapter 5, "Terrestrial and 
Aquatic Food Chain Pathways," by Harold T. Peterson, Jr. 
 
The opinions expressed are strictly mine. 
Here's to a risk free world, and other fantasies. 
 
Bill Lipton 
liptonw@detroitedison.com

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• To: Multiple,recipients,of,list,radsafe@romulus.ehs.uiuc.edu
• Subject: Airborne
• From: "radsafe@romulus.ehs.uiuc.edu" <radsafe@romulus.ehs.uiuc.edu>
• Date: 20 Mar 97 05:28:22
• Reply-to: radsafe@romulus.ehs.uiuc.edu

I am looking for information (books, charts, etc.) which helps relate the 
amount of fixed or loose contamination on a surface (Floor, equipment etc.) to 
the amount that will go airborne during different types of work (walking, 
cutting with saw, grinding, welding).  That you in advance for your help.  
Please send to my E-mail address.  BielaD@wv.doe.gov

Dave Biela

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