Re: I-131 Air Sampling -Reply -Reply

[DAVID HARRISON <DHARRISON@doe.lanl.gov>]

This is something I'd have to look up.  Radioiodine may or may not be akin
to radon with respect to attached and unattached fractions.  More later.

aside:  the basic filter/sampling train used at power plants is:  HEPA -->
Ag Zeolite --> Noble Gases (grab sample, marinelli).

dharrison@doe.lanl.gov
>>> Mike McNaughton <mcnaught@lanl.gov> 06/28/96 09:24am >>>
>Silver zeolite is the medium of choice for iodine sampling primarily
>because of its low affinity for noble gases; however, activated
charcoal
>should do nicely.  HEPA filtration does not "see" iodine.  HEPA filtration
is
>suitable for particulate radiation, not for gases and vapors.

This is something I have often wondered about.  Implicit in the above
statement is the assumption that we are talking about iodine vapor.  In the
real world, does radioiodine react to form a variety of chemical
compounds and attach to dust particles, etc?

Stay safe, mike (mcnaught@LANL.GOV)