If one is allergic to iodine is there anything that can be used to
purify water in an emergency other than iodine based tablets or
boiling? (making a survival kit)

Hello.

The Enviromental Protection Agency recommends three methods of
emergency drinking water disinfection (other than boiling and iodine).
The three methods are:
(1)  Chlorine bleach
(2)  Granular calcium hypochlorite.
(3)  Chlorine tablets
For more information about these methods, visit the EPA web site:
http://www.epa.gov/ogwdw000/faq/emerg.html

The Clorox company has more information about the bleach method:
http://www.clorox.com/health/disaster/disaster5.html

Dozens of online retailers sell chlorine tablets for emergency water
purification. A couple of these are:

Redi-Chlor:
http://www.readychlor.com/
LifeSystems Chlorine Tablets, sold by various retailers such as
Country Trails UK:
http://secure.countrytrails.co.uk/TRAVEL_GOODS_Water_Purification_5.html

search strategy: "disinfection of drinking water"

I hope this helps.

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Clarification of Answer by juggler-ga on 19 Nov 2002 19:51 PST

Thank you very much for the tip.
-juggler

This is my first time using Google Answers. What a great service. The
information you provided me with is exactly what I've been looking
for.
Thanks juggler-ga.