RE: Radon

["Jim Nelson" <nelsonjima@HOTMAIL.COM>]

Mark,



That is also my understanding, but to get to radon-222 gas you need to start 

with radium-226.



Jim Nelson





>From: Sonter Mark <sonterm@epa.nsw.gov.au>

>To: 'Jim Nelson' <nelsonjima@HOTMAIL.COM>, paulwilliam_s@YAHOO.COM, 

>radsafe@list.vanderbilt.edu

>Subject: RE: Radon

>Date: Thu, 28 Jun 2001 09:02:10 +1000

>

>I thought that it was fairly well accepted that the Po210 on tobacco leaves

>(and other leafy plants) comes from the radon and hence radon daughters in

>the air......

>

>Mark Sonter

>

>	-----Original Message-----

>	From:	Jim Nelson [SMTP:nelsonjima@HOTMAIL.COM]

>	Sent:	Thursday, 28 June 2001 2:39

>	To:	paulwilliam_s@YAHOO.COM; radsafe@list.vanderbilt.edu

>	Subject:	Radon

>

>

>	Paul,

>

>	The tobacoo products would also contain similar concentrations of

>	polonium-210 whether in the U.S. or Sweden and likely be

>proportional to

>	radium concentrations in the soils.  Do you think U.S. soils would

>have a

>	higher concentration of radium then Sweden.  Do you know of any

>analytical

>	results examining the thorium content?

>

>	I have seen analyses by the tobacco companies on the polonium

>content.

>	Your points are well taken and of great interest.

>

>	Jim Nelson



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