[at-l] Iodine???

[wdlists at optonline.net (Walt Daniels)]

 Forgot to add that almost anything printed by anyone who might be sued is
probably overly conservative to cover their as.. For example viruses in
backcounty water are very rare but all the advice is treat the water for
viruses.

> -----Original Message-----
> From: Walt Daniels [mailto:wdlists@optonline.net] 
> Sent: Thursday, January 12, 2006 2:13 PM
> To: 'Ms Nira Duvan'; 'AT List'
> Subject: RE: [at-l] Iodine???
> 
> The official answer from ATC is: 
> http://www.appalachiantrail.org/site/c.jkLXJ8MQKtH/b.788921/k.
> 6941/Food_Water_and_Sanitation.htm
> Which includes a link to the NPS suggestions. They are 
> largely duplicates of each other. 
> 
> However neither addresses the issues of iodine toxicity at 
> all, much less over time. Some of this can only be answered 
> by your doctor because different individuals are more or less 
> sensitive.
> 
> A large fraction of the people on this list have other 
> opinions on what is adequate, i.e. works for them. 
> 
> Just treating the water is not a sure preventative for 
> typical water born disease problems. Clean hands and pots are 
> more important than most of the water on the AT which overall 
> is pretty good. 
> 
> We are not a good example because we have done most of our 
> hiking as day hikes carrying public water. We have used both 
> boiling, filters and pills on long days or overnights with no 
> bad results. However my wife did get giardia on one trip when 
> we had public water. There is no proof of the real cause but 
> the only guess is that it was very hot and she dipped her 
> bandana in almost every stream and wiped her face. Not all 
> public water is equally good.
> 
> NPS considers anything from a pipe or well, to be subject to 
> public water supply standards, i.e. regularly tested. Don't 
> believe it. In NY we have a bunch of flakey wells, pass and 
> fail at random. They are all posted as needing treatment. 
> Others may not be as diligent. Particularly the random pipes 
> in the middle of nowhere whose only real purpose is to make 
> it easier to collect the water and not the sand. I have never 
> seen one of those labeled.
> 
> > -----Original Message-----
> > From: at-l-bounces@backcountry.net
> > [mailto:at-l-bounces@backcountry.net] On Behalf Of Ms Nira Duvan
> > Sent: Thursday, January 12, 2006 1:38 PM
> > To: AT List
> > Subject: [at-l] Iodine???
> > 
> > HI.
> > 
> > I was at the store today and talked to a guy there about 
> water filters 
> > vs Iodine vs other chemical treatments.  He said Iodine can 
> build up 
> > in your system over prolongued use, a month or more.
> > 
> > Anyone have any thoughts/advice on that?
> > 
> > Cheers,
> > Nira
> > 
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