RE: Po-210 in tobacco

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

Chris,



Smoking kills 130,000 (just lung cancer)people each year just in the United 

States. I have had two very close friends die who never smoked, but who both 

worked for years in smoked filled restaurants. It is no joke.



Jim Nelson





>From: "Christoph Hofmeyr" <chofmeyr@nnr.co.za>

>Reply-To: "Christoph Hofmeyr" <chofmeyr@nnr.co.za>

>To: "Otto G. Raabe" <ograabe@UCDAVIS.EDU>

>CC: <radsafe@list.vanderbilt.edu>

>Subject: RE: Po-210 in tobacco

>Date: Tue, 3 Jul 2001 15:04:23 +0200

>

>Otto, Radsafers,

>Thanks for the informative comment.  If it has not been done, it could

>be an interesting project to compare Po-210 in (natural) gas-heater

>dried tobacco with air-dried, and with controls dried under controlled

>conditions designed to prevent external exposure to Po-210

>contamination.  Whether Po-210 has any relevance in the Tobacco War,

>which in many instances has gone beyond the rational?  In our latitudes

>it is quite legal to knowingly infect an unsuspecting person with AIDS

>(no disclosure required), but since 1 July it has become a criminal

>offence to light up in a public place (penalty defined).  In my book the

>former is murder, the latter a mild misdemeanor.

>My own musings.  Pardon my cynicism.

>chofmeyr@nnr.co.za

>

>

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

>From: Otto G. Raabe [mailto:ograabe@UCDAVIS.EDU]

>Sent: Monday, July 02, 2001 3:45 PM

>To: radsafe@list.vanderbilt.edu

>Subject: RE: Po-210 in tobacco

>

>

>July 2, 2001

>Davis, CA

>

>Beside root uptake of the Pb-210 from soil, the tobacco leaves can

>receive

>considerable Pb-210 contamination when the leaves are dried with large

>natural gas heaters.  The Po-210 is quite volatile in the burning

>cigarette

>and is ultimately attached to the inhaled smoke, while the lead and

>thorium

>probably primarily remain with the ash.

>

>Otto

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