Re: Radiation doses from coal

["Michael C. Baker" <mcbaker@lanl.gov>]

I believe that the building materials only included that used in 
"Building" construction and so would not include the highway use
that you mention.  However the numbers in the table are per GWy
so they are not directlt comparable to the numbers you refered to.

Mike Baker ... mcbaker@lanl.gov

At 11:35 AM 5/21/98 -0500, you wrote:
>In a message dated 98-05-19 11:33:54 EDT, you write:
>
><< Note that the 
> largest indual dose to the general public was due to the use of 
> ash in building materials.
> 
> Route				Max Individual Dose		Collective Dose
> 				(uSv/y)			(manSv/GWy)
> GENERAL PUBLIC
> inhalation from plume	  0.3 (a)			2.0
> ground-gamma			  1.0 (a)			0.3
> resuspension			  0.7 (a)			0.1
> terrestrial food chain	 50.0 (a)			2.0
> marine food chain		 20.0 (b)			0.5 (c)
> blown ash (inhalation)	  5.0				small
> building materials		120.0 (e)			??
>   (gamma rays) >>
>
>It's not clear, although it appears unlikely, that the figure listed above
for
>building materials from coal ash takes into account the use of coal ash in
>fill for highway and road construction materials (concrete). NCRP 93
[Ionizing
>Radiation Exposure of the Population of the US, 1987] makes reference in
Table
>5.1 to radiation exposure from "Highway and road construction materials"
which
>expose an estimated 5,000,000 people to an average of 40 uSv/yr for an annual
>collective effective dose equivalent of about 200 person-Sv. [20,000 person-
>rem]. Most of this radiation exposure from what the NCRP terms a "consumer
>product" would likely be due to coal ash. 
>
>By comparison, NCRP 93 in Table 8.1 notes an annual collective effective dose
>equivalent from the Nuclear fuel cycle of an estimated 136 person-Sv, or
about
>70% of the collective dose from technologically enhanced NORM from coal ash
>used in highway and road construction.
>
>Stewart Farber, MS Public Health
>Consulting Scientist
>Public Health Sciences
>19 Stuart St.
>Pawtucket, RI 02860
>
>Phone: (401) 727-4947   Fax: (401) 727-2032   E-mail: radproject@usa.net
>