Monona Rossol on thu 2 jul 98
TO JOHN BAYMORE AND CHERYL
> Check with Monona Russol* at ACTS (Art, Craft, and Theatre Safety) in NYC
> about this whole idea. Her e-mail address is 75054.2542@Compuserve.com.
> There is a lot of documentation of manganese problems with potters that I
> think she has. She is an industrial hygienist....... so she might have
some > really good thoughts on the subject, or at least can point you in a
> direction or two for further research. <
Thanks John. But your discussion really covered almost all the variables
that would have to be considered in this fascinating question. You done
good.
EPA is trying to set standards for manganese in dust due to the MMT problem
that was mention in an other post. They are also in the process of setting
a drinking water standard for manganese which will give us parameters for
glaze testing.
Just for the fun of it, MMT = methylcyclopentadienyl manganese tricarbonyl
And it will leave manganese dust on the road side just as the lead gasoline
additives left lead dust. That will make us all lab rats.
But meantime, the only standards we have for manganese are industrial
standards for big husky healthy workers--not for little babies crawling on
the tiles. And even the industrial standards are going to be lowered in
the face of studies that show workers begin having Parkinson's-like nervous
system changes at levels well below the standard.
If those tiles were already installed, I'd council the home owner to be a
neat freak and make sure that the tiles are washed down frequently so that
any manganese abraded by traffic would be we mopped up regularly.
This is weird advice considering my own personal theory about cleaning is
that dust reaches an equilibrium point and does not increase after 6
months.
Monona Rossol*
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