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Date: | Thu, 28 Jun 2012 12:27:09 -0700 |
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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Using almost any substance carries with it the possibility of an immune reaction. Some substances are more allergenic than others. Recognized allergens are best avoided. Foreign proteins typically prompt an immune response. Many years ago we had a similar question and I recommended against using walnut shells for the very reasons you suggest.
I like the suggestion of pelletized rubber.
C
Sent from Charlie's iPad
Berkeley, CA
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Exploratorium
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On Jun 28, 2012, at 11:19 AM, Kim Hunter <[log in to unmask]> wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
>
> As many museums and science centers have done, we have been using walnut
> shells in our fossil dig pits. However, it has come to our attention
> that there could be issues regarding walnut shell allergies. Has anyone
> encountered any issues using walnut shells? If so, did you discontinue
> using them - what did you replace with? Or did you continue to use
> them and posted signs warning of possible reactions?
>
>
>
> --Kim
>
>
>
> Kim Hunter
>
> Senior Director, Exhibit Development
>
> Orlando Science Center
>
> 407/514-2061
>
> [log in to unmask]
>
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> Inspire Science Learning for Life
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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit
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