[ RadSafe ] NORM in CO2...

[Brennan, Mike (DOH)]

How is the CO2 made?  If is made from natural gas, that might be the
source.  As I understand it, Ra is entrained/dissolved in natural gas,
and comes out of the ground with it.  Ra plating out on natural gas
pipes sometimes is raised as a NORM issue.  

Another thing to check is that the CO2 REALLY does have Ra-226 in it,
and that it is not the steel in the tank, or operator error.  I once had
a member of the public call, extremely agitated about the "high
readings" he was getting on his CDV GM.  When I asked him what scale he
was on there was silence for a while, then, "Oh."   

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On
Behalf Of Brian G. Rees
Sent: Tuesday, August 18, 2009 11:12 AM
To: radsafe at radlab.nl
Subject: [ RadSafe ] NORM in CO2...

I have a question:  Why would CO2 have elevated Ra-226?  I'm familiar
with Rn in propane (similar boiling points), but what about Ra-226?

Thanks in advance,
Brian Rees
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