Re[2]: Cs137 in soil and cancer risk

[azapantis@mgdestmx01.erin.gov.au]

_
>Dose conversion factor for a contaminated soil assuming Ba137m and Cs137 are
in secular equilibirum (which is reasonably acceptable regarding Ba137m
half-life (T=4.86E-6 y))
= 1.09 E-6 Sv/y per Bq/kg (AECL, 1989) *
or = 1.14E-6 Sv/y per Bq/kg (ORNL, 1993) 

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How have these dose conversion factors been calculated? Do they take into
account ground shine, resuspension, transfer to food and/or water, kids eating
dirt etc etc etc... I'm curious as to the applicability of a single "number" to
all possible critical groups when the pathways of exposure vary with land use.

Regards


Alex Zapantis                                  
Environmental Radiation Officer     
Office of the Supervising Scientist		
40 Blackall Street 														
Barton ACT 2600 AUSTRALIA 
            
Email: azapantis@mgdestmx01.erin.gov.au
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The Office of the Supervising Scientist is a Branch of the 
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