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re: Mercury in limestone, shale, natural gypsum, etc.?


You may want to check with the U.S. Geological Survey (USGS) 
(http://www.usgs.gov) and its minerals division (http://minerals.usgs.gov/).  
I suspect that trace composition analyses aren't readily available on the 
USGS web site.  To make an inquiry to USGS see http://ask.usgs.gov/.  

Rodney Sobin
Innovative Technology Manager
Virginia Department of Environmental Quality
P.O. Box 10009				629 E.Main St.
Richmond VA 23240-0009		Richmond VA 23219-2429
Tel. 804-698-4382	
Fax 804-698-4264
---------- Original Text ----------

From: "Isaac, Stacey" <sisaac@rti.org>, on 06/23/2000 11:16 AM:
To: SMTP@RCHMD.01@Servers["'p2tech@great-lakes.net'" <p2tech@great-lakes.net>]

I'm working on a project (07620.003.075) to evaluate environmental issues
related to mercury concentrations in coal combustion byproducts (fly ash,
bottom ash, FGD residues, etc.) 
As part of the project, I'm hoping to get information on mercury
concentrations in some of the natural materials for which these coal
combustion byproducts might be substituted. The natural materials include
limestone (as input to cement kilns,as an agricultural soil amendment, and
other uses), shale, natural gypsum (as used in wallboard, for example), etc.

Has anyone done any work where you've looked at mercury in any of these
naturally occuring materials? If so, could you contact me? 

Stacey Isaac
Research Assisatant 3, Pollution 
         Prevention Program, RTI
P.O. Box 12194
RTP, NC 27709-2194
(919) 541-1253