methods for sampling radio-iodine

Thank you for posting these data.

I am a physics professor at the University of New Mexico. I am also a Certified Health Physicist. Here, at Los Alamos, we are also detecting very small amounts of I-131, and even smaller amounts of I-132, Te-132, Cs-134, and Cs137. Like you, we are using filters. The question, of course, is: how well do these filters collect radio-iodine?

It would be very valuable to discuss this. My home email is:
uumike@comcast.net
My university email is
mcnaught@unm.edu

Thank you.
Mike McNaughton